The Experts below are selected from a list of 1671 Experts worldwide ranked by ideXlab platform

Isaac Shpantzer - One of the best experts on this subject based on the ideXlab platform.

  • Improvement of Coherent Homodyne Detection performance using time-gated amplification and LiNbO 3 optical 90° hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • improvement of Coherent Homodyne Detection performance using time gated amplification and linbo 3 optical 90 hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • Coherent Homodyne Detection of bpsk signals using time gated amplification and linbo sub 3 optical 90 spl deg hybrid
    IEEE Photonics Technology Letters, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Arkady Kaplan, Yaakov Achiam, Arthur Greenblatt, Isaac Shpantzer
    Abstract:

    We have investigated and compared the performance of Coherent Detection of 12.5-Gb/s nonreturn-to-zero and return-to-zero binary phase-shift keying (BPSK) signals using LiNbO/sub 3/ optical 90/spl deg/ hybrid with pulsed and continuous-wave local laser oscillator (LO). Our results showed that pulsed local oscillator provides at least 2-dB reduction in optical signal-to-noise ratio requirement. Increased eye opening and reduced bit-error ratio of the detected BPSK signal was observed using pulsed local oscillator. Pulsed local oscillator also provides pulse-shaping capability that reduces signal pulse-broadening penalty. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulsewidth which gives maximum eye opening.

  • Coherent Homodyne Detection using time-gated amplification and LiNbO3 optical 90° hybrid
    2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.

  • Coherent Homodyne Detection using time gated amplification and linbo3 optical 90 hybrid
    Optical Fiber Communication Conference, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.

Pak Shing Cho - One of the best experts on this subject based on the ideXlab platform.

  • Improvement of Coherent Homodyne Detection performance using time-gated amplification and LiNbO 3 optical 90° hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • improvement of Coherent Homodyne Detection performance using time gated amplification and linbo 3 optical 90 hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • Coherent Homodyne Detection of bpsk signals using time gated amplification and linbo sub 3 optical 90 spl deg hybrid
    IEEE Photonics Technology Letters, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Arkady Kaplan, Yaakov Achiam, Arthur Greenblatt, Isaac Shpantzer
    Abstract:

    We have investigated and compared the performance of Coherent Detection of 12.5-Gb/s nonreturn-to-zero and return-to-zero binary phase-shift keying (BPSK) signals using LiNbO/sub 3/ optical 90/spl deg/ hybrid with pulsed and continuous-wave local laser oscillator (LO). Our results showed that pulsed local oscillator provides at least 2-dB reduction in optical signal-to-noise ratio requirement. Increased eye opening and reduced bit-error ratio of the detected BPSK signal was observed using pulsed local oscillator. Pulsed local oscillator also provides pulse-shaping capability that reduces signal pulse-broadening penalty. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulsewidth which gives maximum eye opening.

  • Coherent Homodyne Detection using time-gated amplification and LiNbO3 optical 90° hybrid
    2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.

  • Coherent Homodyne Detection using time gated amplification and linbo3 optical 90 hybrid
    Optical Fiber Communication Conference, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.

Arkady Kaplan - One of the best experts on this subject based on the ideXlab platform.

  • Improvement of Coherent Homodyne Detection performance using time-gated amplification and LiNbO 3 optical 90° hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • improvement of Coherent Homodyne Detection performance using time gated amplification and linbo 3 optical 90 hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • Coherent Homodyne Detection of bpsk signals using time gated amplification and linbo sub 3 optical 90 spl deg hybrid
    IEEE Photonics Technology Letters, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Arkady Kaplan, Yaakov Achiam, Arthur Greenblatt, Isaac Shpantzer
    Abstract:

    We have investigated and compared the performance of Coherent Detection of 12.5-Gb/s nonreturn-to-zero and return-to-zero binary phase-shift keying (BPSK) signals using LiNbO/sub 3/ optical 90/spl deg/ hybrid with pulsed and continuous-wave local laser oscillator (LO). Our results showed that pulsed local oscillator provides at least 2-dB reduction in optical signal-to-noise ratio requirement. Increased eye opening and reduced bit-error ratio of the detected BPSK signal was observed using pulsed local oscillator. Pulsed local oscillator also provides pulse-shaping capability that reduces signal pulse-broadening penalty. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulsewidth which gives maximum eye opening.

  • Coherent Homodyne Detection using time-gated amplification and LiNbO3 optical 90° hybrid
    2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.

  • Coherent Homodyne Detection using time gated amplification and linbo3 optical 90 hybrid
    Optical Fiber Communication Conference, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.

Chris J. Kerr - One of the best experts on this subject based on the ideXlab platform.

  • Improvement of Coherent Homodyne Detection performance using time-gated amplification and LiNbO 3 optical 90° hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • improvement of Coherent Homodyne Detection performance using time gated amplification and linbo 3 optical 90 hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • Coherent Homodyne Detection of bpsk signals using time gated amplification and linbo sub 3 optical 90 spl deg hybrid
    IEEE Photonics Technology Letters, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Arkady Kaplan, Yaakov Achiam, Arthur Greenblatt, Isaac Shpantzer
    Abstract:

    We have investigated and compared the performance of Coherent Detection of 12.5-Gb/s nonreturn-to-zero and return-to-zero binary phase-shift keying (BPSK) signals using LiNbO/sub 3/ optical 90/spl deg/ hybrid with pulsed and continuous-wave local laser oscillator (LO). Our results showed that pulsed local oscillator provides at least 2-dB reduction in optical signal-to-noise ratio requirement. Increased eye opening and reduced bit-error ratio of the detected BPSK signal was observed using pulsed local oscillator. Pulsed local oscillator also provides pulse-shaping capability that reduces signal pulse-broadening penalty. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulsewidth which gives maximum eye opening.

  • Coherent Homodyne Detection using time-gated amplification and LiNbO3 optical 90° hybrid
    2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.

  • Coherent Homodyne Detection using time gated amplification and linbo3 optical 90 hybrid
    Optical Fiber Communication Conference, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.

Yaakov Achiam - One of the best experts on this subject based on the ideXlab platform.

  • Improvement of Coherent Homodyne Detection performance using time-gated amplification and LiNbO 3 optical 90° hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • improvement of Coherent Homodyne Detection performance using time gated amplification and linbo 3 optical 90 hybrid
    Sensors and Command Control Communications and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense III, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    Coherent Homodyne Detection using local laser oscillator is an important technique for applications requiring high receiver sensitivity. Conventional Homodyne Detection uses a continuous-wave (CW) local laser oscillator (LO) in which the only adjustable parameter is its average power. A pulsed LO with repetition rate same as the data symbol rate is proposed which provides new degree of freedom in receiver design, namely, its pulse shape and duty cycle. It is shown that pulsed LO is overall effective in enhancing receiver sensitivity compared with CW LO. We have investigated and compared the performance of Coherent Detection of 12.5 Gb/s binary phase-shift-keyed signals using integrated LiNbO 3 optical 90° hybrid with pulsed and CW LO for different receiver bandwidths. Our results showed that pulsed LO provide at least 2 dB in sensitivity improvement. We also observed that pulsed LO is effective in reshaping broadened signal pulses. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulse width that gives maximum eye opening. Our simulation results also showed that pulsed LO is potentially effective in reducing penalty of pulse smearing as a result of beam steering impairment in free-space laser communications.

  • Coherent Homodyne Detection of bpsk signals using time gated amplification and linbo sub 3 optical 90 spl deg hybrid
    IEEE Photonics Technology Letters, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Arkady Kaplan, Yaakov Achiam, Arthur Greenblatt, Isaac Shpantzer
    Abstract:

    We have investigated and compared the performance of Coherent Detection of 12.5-Gb/s nonreturn-to-zero and return-to-zero binary phase-shift keying (BPSK) signals using LiNbO/sub 3/ optical 90/spl deg/ hybrid with pulsed and continuous-wave local laser oscillator (LO). Our results showed that pulsed local oscillator provides at least 2-dB reduction in optical signal-to-noise ratio requirement. Increased eye opening and reduced bit-error ratio of the detected BPSK signal was observed using pulsed local oscillator. Pulsed local oscillator also provides pulse-shaping capability that reduces signal pulse-broadening penalty. Our simulation results agreed well with experiment and predicted that for a given signal and receiver bandwidth there is an optimal LO pulsewidth which gives maximum eye opening.

  • Coherent Homodyne Detection using time-gated amplification and LiNbO3 optical 90° hybrid
    2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.

  • Coherent Homodyne Detection using time gated amplification and linbo3 optical 90 hybrid
    Optical Fiber Communication Conference, 2004
    Co-Authors: Pak Shing Cho, Geof Harston, Chris J. Kerr, Art Greenblatt, Arkady Kaplan, Yaakov Achiam, Isaac Shpantzer
    Abstract:

    We investigated Coherent Detection of BPSK signal using LiNbO3 optical 90o hybrid with pulsed and CW local-oscillator. Bit-error-rate improvement was observed using pulsed local-oscillator and it provides pulse shaping capability that reduces pulse broadening penalty.