The Experts below are selected from a list of 27186 Experts worldwide ranked by ideXlab platform
Shienkuei Liaw - One of the best experts on this subject based on the ideXlab platform.
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single longitudinal mode fiber laser using passive multiple Ring Cavity technique
Asia Pacific Symposium on Optoelectronics '98, 1998Co-Authors: Chienchung Lee, Y K Chen, Shienkuei Liaw, Frank Tsai, C S WangAbstract:A single-longitudinal-mode erbium-doped fiber laser with passive multiple-Ring-Cavity (MRC) is proposed. The laser is fundamentally structured by inserting three different short Ring cavities, which serve as mode filters, into the main Cavity. When combined with a mode-restricting intraCavity fiber Bragg grating, the MRC resonator ensures single- longitudinal-mode laser oscillation. The laser can successfully suppress the side-mode frequencies up to 1 GHz, and provide an output power of 23 mW with a side-mode suppression ratio of 51 dB at 1533 nm. The short-term linewidth of the laser output measured is about 2 kHz. The ability of this fiber laser as an AM transmitter source is also demonstrated.
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single longitudinal mode fiber laser with passive multiple Ring Cavity and its application for video transmission
Conference on Lasers and Electro-Optics, 1998Co-Authors: C C Lee, Y K Chen, Shienkuei Liaw, F Y Tsai, C S WangAbstract:We have demonstrated an Er-doped fiber laser, in which the unwanted side-mode frequencies can be removed beyond 1 GHz by the multiple Ring Cavity (MRC) method. The ability of this fiber laser as an AM transmitter source has been verified by the experiment of 10 NTSC-channel transmission with a high CNR of >52 dB and excellent video quality.
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single longitudinal mode fiber laser with a passive multiple Ring Cavity and its application for video transmission
Optics Letters, 1998Co-Authors: Chienchung Lee, Yungkuang Chen, Shienkuei LiawAbstract:A single-longitudinal-mode erbium-doped fiber laser with a passive multiple-Ring Cavity (MRC) is proposed for the first time to the authors’ knowledge. The laser is fundamentally structured by insertion of three different short Ring cavities, which serve as mode filters, into the main Cavity. When it is combined with a mode-restricting intraCavity fiber Bragg grating, the MRC resonator ensures single-longitundinal-mode laser oscillation. The laser can successfully suppress side-mode frequencies of as much as 1??GHz and provide an output power of 23??mW with a side-mode suppression ratio of 51??dB at 1533??nm. The short-term linewidth of the laser output measured is ?2 kHz. The ability of this fiber laser to act as an AM transmitter source is also demonstrated.
Alexey Belyanin - One of the best experts on this subject based on the ideXlab platform.
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generation of picosecond pulses and frequency combs in actively mode locked external Ring Cavity quantum cascade lasers
Applied Physics Letters, 2013Co-Authors: Aleksander K Wojcik, P Malara, Romain Blanchard, Tobias S Mansuripur, Federico Capasso, Alexey BelyaninAbstract:We propose a robust and reliable method of active mode locking of mid-infrared quantum cascade lasers and develop its theoretical description. Its key element is the use of an external Ring Cavity, which circumvents fundamental issues undermining the stability of mode locking in quantum cascade lasers. We show that active mode locking can give rise to the generation of picosecond pulses and phase-locked frequency combs containing thousands of the Ring Cavity modes.
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external Ring Cavity quantum cascade lasers
Applied Physics Letters, 2013Co-Authors: P Malara, Romain Blanchard, Tobias S Mansuripur, Aleksander K Wojcik, Alexey Belyanin, Kazuue Fujita, Tadataka Edamura, Shinichi Furuta, Masamichi Yamanishi, Paolo De NataleAbstract:An external Ring-Cavity quantum cascade laser (QCL) is demonstrated. Gain competition between the clockwise and anticlockwise Ring-Cavity modes results in a transition from bidirectional to directional emission as current is increased. In the directional regime, spatial hole burning (SHB) is suppressed, and the spectrum evolves to a single longitudinal mode, in contrast with the multimode spectrum of a comparable Fabry-Perot QCL. The absence of SHB and the long path-length of the external Cavity make this laser an excellent candidate for active mode-locking and high-sensitivity spectroscopic applications in the mid-infrared. A proof-of-principle intraCavity absorption spectroscopic detection of water vapor is demonstrated.
P Malara - One of the best experts on this subject based on the ideXlab platform.
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generation of picosecond pulses and frequency combs in actively mode locked external Ring Cavity quantum cascade lasers
Applied Physics Letters, 2013Co-Authors: Aleksander K Wojcik, P Malara, Romain Blanchard, Tobias S Mansuripur, Federico Capasso, Alexey BelyaninAbstract:We propose a robust and reliable method of active mode locking of mid-infrared quantum cascade lasers and develop its theoretical description. Its key element is the use of an external Ring Cavity, which circumvents fundamental issues undermining the stability of mode locking in quantum cascade lasers. We show that active mode locking can give rise to the generation of picosecond pulses and phase-locked frequency combs containing thousands of the Ring Cavity modes.
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external Ring Cavity quantum cascade lasers
Applied Physics Letters, 2013Co-Authors: P Malara, Romain Blanchard, Tobias S Mansuripur, Aleksander K Wojcik, Alexey Belyanin, Kazuue Fujita, Tadataka Edamura, Shinichi Furuta, Masamichi Yamanishi, Paolo De NataleAbstract:An external Ring-Cavity quantum cascade laser (QCL) is demonstrated. Gain competition between the clockwise and anticlockwise Ring-Cavity modes results in a transition from bidirectional to directional emission as current is increased. In the directional regime, spatial hole burning (SHB) is suppressed, and the spectrum evolves to a single longitudinal mode, in contrast with the multimode spectrum of a comparable Fabry-Perot QCL. The absence of SHB and the long path-length of the external Cavity make this laser an excellent candidate for active mode-locking and high-sensitivity spectroscopic applications in the mid-infrared. A proof-of-principle intraCavity absorption spectroscopic detection of water vapor is demonstrated.
Aleksander K Wojcik - One of the best experts on this subject based on the ideXlab platform.
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generation of picosecond pulses and frequency combs in actively mode locked external Ring Cavity quantum cascade lasers
Applied Physics Letters, 2013Co-Authors: Aleksander K Wojcik, P Malara, Romain Blanchard, Tobias S Mansuripur, Federico Capasso, Alexey BelyaninAbstract:We propose a robust and reliable method of active mode locking of mid-infrared quantum cascade lasers and develop its theoretical description. Its key element is the use of an external Ring Cavity, which circumvents fundamental issues undermining the stability of mode locking in quantum cascade lasers. We show that active mode locking can give rise to the generation of picosecond pulses and phase-locked frequency combs containing thousands of the Ring Cavity modes.
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external Ring Cavity quantum cascade lasers
Applied Physics Letters, 2013Co-Authors: P Malara, Romain Blanchard, Tobias S Mansuripur, Aleksander K Wojcik, Alexey Belyanin, Kazuue Fujita, Tadataka Edamura, Shinichi Furuta, Masamichi Yamanishi, Paolo De NataleAbstract:An external Ring-Cavity quantum cascade laser (QCL) is demonstrated. Gain competition between the clockwise and anticlockwise Ring-Cavity modes results in a transition from bidirectional to directional emission as current is increased. In the directional regime, spatial hole burning (SHB) is suppressed, and the spectrum evolves to a single longitudinal mode, in contrast with the multimode spectrum of a comparable Fabry-Perot QCL. The absence of SHB and the long path-length of the external Cavity make this laser an excellent candidate for active mode-locking and high-sensitivity spectroscopic applications in the mid-infrared. A proof-of-principle intraCavity absorption spectroscopic detection of water vapor is demonstrated.
Paolo De Natale - One of the best experts on this subject based on the ideXlab platform.
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external Ring Cavity quantum cascade lasers
Applied Physics Letters, 2013Co-Authors: P Malara, Romain Blanchard, Tobias S Mansuripur, Aleksander K Wojcik, Alexey Belyanin, Kazuue Fujita, Tadataka Edamura, Shinichi Furuta, Masamichi Yamanishi, Paolo De NataleAbstract:An external Ring-Cavity quantum cascade laser (QCL) is demonstrated. Gain competition between the clockwise and anticlockwise Ring-Cavity modes results in a transition from bidirectional to directional emission as current is increased. In the directional regime, spatial hole burning (SHB) is suppressed, and the spectrum evolves to a single longitudinal mode, in contrast with the multimode spectrum of a comparable Fabry-Perot QCL. The absence of SHB and the long path-length of the external Cavity make this laser an excellent candidate for active mode-locking and high-sensitivity spectroscopic applications in the mid-infrared. A proof-of-principle intraCavity absorption spectroscopic detection of water vapor is demonstrated.
