The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform

H Zimmermann - One of the best experts on this subject based on the ideXlab platform.

  • High sensitivity 80 Gbps parallel Optical Receiver for hybrid integrated Ge photodiodes
    8th IEEE International Conference on Group IV Photonics, 2011
    Co-Authors: A. Polzer, Robert Swoboda, Wolfgang Gaberl, Paul Brandl, J-m. Fedeli, Christophe Kopp, Laurent Vivien, H Zimmermann
    Abstract:

    A high sensitivity 8×10 Gbps parallel integrated Optical Receiver with transimpedance amplifier followed by limiting amplifier stages and output driver in standard 0.35 µm SiGe BiCMOS technology with low input noise current (407 nA) is presented.

  • An integrated Optical Receiver for multilevel data communication over large core step index plastic Optical fiber
    Analog Integrated Circuits and Signal Processing, 2011
    Co-Authors: Mohamed Atef, Robert Swoboda, Wolfgang Gaberl, H Zimmermann
    Abstract:

    A BiCMOS integrated Optical Receiver with high sensitivity and good linearity is presented. An automatic gain control transimpedance amplifier (TIA) and linear post amplifiers are used to maintain a high linearity with multilevel modulation. Using multilevel signaling and large-diameter integrated photodiodes make the presented Optical Receiver suitable for small-bandwidth high-attenuation large-core PMMA step index plastic Optical fiber. A measured sensitivity of −31 dBm (BER = 10^−9) at 250 Mb/s is presented for a binary signal. A data rate of 500 Mb/s and a sensitivity of −25 dBm (BER = 10^−9) are achieved with four-level pulse amplitude modulation (4-PAM). An error-free transmission over 40 m PMMA step index plastic Optical fiber was achieved at 500 Mb/s using 4-PAM signaling with the presented multilevel Optical Receiver.

  • Optical Receiver for multicarrier modulation in short-reach communication
    Electronics Letters, 2010
    Co-Authors: Mohamed Atef, R. Swoboda, H Zimmermann
    Abstract:

    A high-linearity Optical Receiver with background-light-AGC for high PAPR signals is presented. The integrated BiCMOS Optical Receiver consists of a TIA with AGC, a linear amplifier and a line driver. The Receiver THD is 1.7% and the third-order intermodulation is 50 dBc at 20 MHz and at an input Optical power of −3.5 dBm. The third-order intermodulation decreases to 40 dBc at 100 MHz.

  • An integrated Optical Receiver for 2.5Gbit/s using 4-PAM signaling
    2010 International Conference on Microelectronics, 2010
    Co-Authors: Mohamed Atef, R. Swoboda, H Zimmermann
    Abstract:

    A fully integrated Optical Receiver with high sensitivity and linearity is presented. The Optical Receiver implements an integrated large-area photodiode, a transimpedance amplifier, an automatic gain control and linear post amplifiers to have a good linearity with multilevel pulse amplitude modulation (M-PAM). The Receiver has a measured sensitivity of −22dBm (BER=10−9) at 1.25Gbit/s for a binary signal. A data rate of 2.5Gbit/s and a sensitivity of −16dBm (BER=10−9) are achieved with 4-PAM. Using M-PAM signaling and large-area integrated photodiodes make the Optical Receiver promising for the small bandwidth large-core step-index plastic Optical fiber.

  • Giga-bit Optical Receiver for plastic Optical fibre
    Optics Communications, 2010
    Co-Authors: Mohamed Atef, R. Swoboda, H Zimmermann
    Abstract:

    Abstract An Optical Receiver with high sensitivity and linearity specially designed for Giga-bit communications over small-bandwidth high-attenuation multimode plastic Optical fiber is presented. An automatic gain control transimpedance amplifier and linear post amplifiers are used to maintain a good performance with multilevel modulation. Using multilevel signaling and large-diameter integrated photodiodes make the presented Optical Receiver suitable for large core plastic Optical fiber. For a wavelength of 675 nm, a sensitivity of −26.3 dB m (BER = 10 −9 ) at 500 Mb/s is presented by a binary signal. A data rate of 1 Gb/s and a sensitivity of −19.8 dB m (BER = 10 −9 ) are achieved with four-level pulse amplitude modulation.

Joe C. Campbell - One of the best experts on this subject based on the ideXlab platform.

  • Integrated silicon Optical Receiver with avalanche photodiode
    IEE Proceedings - Optoelectronics, 2003
    Co-Authors: Sebastian Csutak, Jeremy D. Schaub, S. Wang, J. Mogab, Joe C. Campbell
    Abstract:

    An Optical Receiver consisting of an avalanche photodiode integrated with a transimpedance amplifier is reported. The Optical Receiver was fabricated on a 2 /spl mu/m thick SOI substrate in a 130 nm unmodified CMOS process flow. The unity gain external quantum efficiency of the photodetectors was /spl sim/10% at 850 nm. Optimum sensitivity was achieved for an avalanche gain M=8. This gain accounted for 5 dB improvement in Receiver sensitivity at 2 Gbit/s. Operation at 8 Gbit/s was achieved only when the photodetector was biased in the avalanche gain regime.

  • 10 gb s all silicon Optical Receiver
    IEEE Photonics Technology Letters, 2003
    Co-Authors: B Yang, Sebastian Csutak, Jeremy D. Schaub, D L Rogers, Joe C. Campbell
    Abstract:

    We report an all-silicon Optical Receiver operating at 10 Gb/s. The lateral p-i-n photodiodes were fabricated using standard 130-nm complementary metal-oxide-semiconductor technology on silicon-on-insulator substrate. A sensitivity of -6.9dBm (bit error ratio <10/sup -9/) at 10 Gb/s was achieved.

Wei-zen Chen - One of the best experts on this subject based on the ideXlab platform.

  • High Speed Energy Efficient Optical Receiver
    2018 IEEE International Conference on Electron Devices and Solid State Circuits (EDSSC), 2018
    Co-Authors: Yuan-sheng Lee, Wei-zen Chen
    Abstract:

    This paper describes the design techniques of high speed, energy efficient Optical Receivers, covering from the front-end amplifier to the post clock and data recovery circuit (CDR). An integration type Optical Receiver incorporating with a current boost preamplifier and a baud rate CDR is proposed to improve the Receiver sensitivity as well as its energy efficiency. A fully integrated experimental prototype is implemented in a TSMC 40 nm CMOS technology that achieves a high energy efficiency of 2.1 pJ/bit at 25 Gbps operation.

  • CMOS Optical Receiver with integrated photo detector for high-speed interconnects
    2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology, 2010
    Co-Authors: Shih-hao Huang, Wei-zen Chen
    Abstract:

    CMOS Optical Receivers incorporating on-chip photo detectors have demonstrated strong potentials for data intensive links beyond multi-Gb/s range. This paper presents the design of Optical Receivers covering from photo detectors to high sensitivity amplifier in generic CMOS technology. A 2-D meshed spatially-modulated photo detector is presented for up to 10-Gb/s operations. A low-noise trans-impedance amplifier with nested feedback shows a conversion gain of 2 kΩ and input sensitivity of 18 µA pp . Finally, a fully integrated 20-Gb/s 4-channel Optical Receiver is also demonstrated.

  • CICC - A 10-Gbps CMOS single chip Optical Receiver with 2-D meshed spatially-modulated light detector
    2009 IEEE Custom Integrated Circuits Conference, 2009
    Co-Authors: Shih-hao Huang, Wei-zen Chen
    Abstract:

    This paper presents a 10-Gbps Optical Receiver with monolithically integrated CMOS photo detector. A transimpedance amplifier with nested feedback and shunt-peaking is proposed for broad-band and high gain operations. Incorporating a 2-D meshed spatially-modulated light detector, the Optical Receiver is capable of delivering 25 kΩ transimpedance gain when driving 50 Ω output loads. The operating speed is improved by 3X over the prior art with the same technology. Implemented in a generic 0.18-µm CMOS technology, the chip size is 0.95 mm × 0.8 mm. This Receiver core drains 118 mW from 1.8 V supply.

  • A 90-dBȚ 10- Gb/s Optical Receiver analog front-end in a 0.18-um CMOS technologyā
    2007
    Co-Authors: Wei-zen Chen, Da-shin Lin
    Abstract:

    Optical Receiver analog front-end (AFE), including a transimpedance amplifier (TIA), an automatic gain control circuit, and a postamplifier (PA), is fabricated using a 0.18- m CMOS technology. In contrast with a conventional lim-iting amplifier architecture, the PA is consisted of a voltage ampli-fier followed by a slicer. By means of the TIA and the PA codesign, the Receiver front-end provides a 3-dB bandwidth of 7.86 GHz and a gain bandwidth product (GBW) of 248.5 THz-. The tiny photocurrent received by the AFE is amplified to a differential voltage swing of 900 mV pp when driving 50-output loads. The measured input sensitivity of the Optical Receiver is 13 dBm at a bit-error rate of 10 12 with a 231 1 pseudorandom test pattern. The Optical Receiver AFE dissipates a total power of 199 mW from a 1.8-V supply, among which 35 mW is consumed by the output buffer. The chip size is 1300 m 1796 m. Index Terms—Optical Receiver, postamplifier (PA), transformer, transimpedance amplifier (TIA). I

  • a 2 5 gbps cmos Optical Receiver analog front end
    Custom Integrated Circuits Conference, 2002
    Co-Authors: Wei-zen Chen
    Abstract:

    A 3 V, single chip Optical Receiver analog front-end capable of operating at 2.5 Gbit/s is fabricated in a 0.35 /spl mu/m CMOS technology. The IC contains a transimpedance amplifier (TIA) with 54.5 dB/spl Omega/ conversion gain, f/sub -3 dB/ of 2.5 GHz, and a limiting amplifier with a conversion gain of 42 dB, f/sub -3 dB/ of 2.3 GHz. The TIA is DC coupled to the limiting amplifier. The measured eye diagram meets the OC-48 transition mask. Input referred noise current is about 800 nA.

T. Takeuchi - One of the best experts on this subject based on the ideXlab platform.

  • 40-Gb/s Optical Receiver achieving 13 dB dynamic range without Optical preamplifier
    Journal of Lightwave Technology, 2003
    Co-Authors: S. Moribayashi, R. Ohhira, T. Oami, A. Noda, N. Baba, T. Takeuchi
    Abstract:

    We have developed 40-Gb/s Optical Receiver consisting of a limiting amplifier and a transimpedance amplifier. Using NRZ-format, back-to-back Receiver sensitivity of -8 dBm and input dynamic range of 13 dB were achieved without an Optical preamplifier.

  • A 40 Gb/s Optical Receiver : Special issue on transmission systems
    Nec Research & Development, 1999
    Co-Authors: A. Noda, T. Takeuchi, Kiyoshi Fukuchi, N. Nagano, M. Tachigori
    Abstract:

    40 Gb/s operation of an Optical Receiver has been successfully achieved utilizing GaAs-Heterojunction Bipolar Transistor (HBT)-ICs. The Optical Receiver card is composed of an Optical front-end module, baseband amplifier modules and a timing extraction circuit, and has exhibited a high Receiver sensitivity of -22.6 dBm at a bit error rate of 10 -11 .

  • 2.4-Gbit/s compact Optical Receiver module with one-chip 3R IC
    Optical Fiber Communications OFC., 1
    Co-Authors: H. Ishikawa, T. Takeuchi, M. Soda, H. Kaneko, T. Suzaki
    Abstract:

    Future multimedia communications demand large capacity Optical transmissions in Gbit/s range, even in access networks, such as local area networks, interconnections, and subscriber systems. An Optical Receiver module in such applications is required to be small, low power, and low cost. We have fabricated an Optical Receiver in a miniature flat package for 2.4 Gbit/s operation. For realizing a compact and easy assembling Optical Receiver, a one-chip Receiver IC including a PLL (phase-locked loop)-type clock extraction circuit, a multimode waveguide-type pin-PD, and TAB (tape automated bonding) technique were newly developed. This paper describes design and characteristics of this 2.4-Gbit/s Optical Receiver.

  • A high-sensitivity 40-Gbit/s Optical Receiver using packaged GaAs HBT-ICs
    OFC '98. Optical Fiber Communication Conference and Exhibit. Technical Digest. Conference Edition. 1998 OSA Technical Digest Series Vol.2 (IEEE Cat. N, 1
    Co-Authors: R. Ohhira, T. Takeuchi, N. Nagano, Y. Amamiya, T. Niwa, C. Kurioka, T. Chuzenji, Kiyoshi Fukuchi
    Abstract:

    Summary form only given. In this paper, we report the development of 40-Gbit/s Optical Receiver that employs three packaged AlGaAs-InGaAs HBT ICs: a preamplifier, a distributed amplifier, and a D-type flip-flop circuit. Approaches have been applied in packaged IC design for high-speed operation, which resulted in a very high Receiver sensitivity at 40 Gbit/s.

Mohamed Atef - One of the best experts on this subject based on the ideXlab platform.

  • Optical communication over plastic Optical fibers integrated Optical Receiver technology
    2012
    Co-Authors: Mohamed Atef, H Zimmerma
    Abstract:

    Multilevel Signaling.- Equalization Techniques.- High-Speed Transmission over Step-Index PMMA Plastic Optical Fibers.- Transimpedance Amplifier Theory.- Integrated Optical Receiver for Multilevel Transmission over PMMA SI-POF.- Integrated Optical Receiver with an Integrated Equalizer for SI-POF.

  • An integrated Optical Receiver for multilevel data communication over large core step index plastic Optical fiber
    Analog Integrated Circuits and Signal Processing, 2011
    Co-Authors: Mohamed Atef, Robert Swoboda, Wolfgang Gaberl, H Zimmermann
    Abstract:

    A BiCMOS integrated Optical Receiver with high sensitivity and good linearity is presented. An automatic gain control transimpedance amplifier (TIA) and linear post amplifiers are used to maintain a high linearity with multilevel modulation. Using multilevel signaling and large-diameter integrated photodiodes make the presented Optical Receiver suitable for small-bandwidth high-attenuation large-core PMMA step index plastic Optical fiber. A measured sensitivity of −31 dBm (BER = 10^−9) at 250 Mb/s is presented for a binary signal. A data rate of 500 Mb/s and a sensitivity of −25 dBm (BER = 10^−9) are achieved with four-level pulse amplitude modulation (4-PAM). An error-free transmission over 40 m PMMA step index plastic Optical fiber was achieved at 500 Mb/s using 4-PAM signaling with the presented multilevel Optical Receiver.

  • Optical Receiver for multicarrier modulation in short-reach communication
    Electronics Letters, 2010
    Co-Authors: Mohamed Atef, R. Swoboda, H Zimmermann
    Abstract:

    A high-linearity Optical Receiver with background-light-AGC for high PAPR signals is presented. The integrated BiCMOS Optical Receiver consists of a TIA with AGC, a linear amplifier and a line driver. The Receiver THD is 1.7% and the third-order intermodulation is 50 dBc at 20 MHz and at an input Optical power of −3.5 dBm. The third-order intermodulation decreases to 40 dBc at 100 MHz.

  • An integrated Optical Receiver for 2.5Gbit/s using 4-PAM signaling
    2010 International Conference on Microelectronics, 2010
    Co-Authors: Mohamed Atef, R. Swoboda, H Zimmermann
    Abstract:

    A fully integrated Optical Receiver with high sensitivity and linearity is presented. The Optical Receiver implements an integrated large-area photodiode, a transimpedance amplifier, an automatic gain control and linear post amplifiers to have a good linearity with multilevel pulse amplitude modulation (M-PAM). The Receiver has a measured sensitivity of −22dBm (BER=10−9) at 1.25Gbit/s for a binary signal. A data rate of 2.5Gbit/s and a sensitivity of −16dBm (BER=10−9) are achieved with 4-PAM. Using M-PAM signaling and large-area integrated photodiodes make the Optical Receiver promising for the small bandwidth large-core step-index plastic Optical fiber.

  • Giga-bit Optical Receiver for plastic Optical fibre
    Optics Communications, 2010
    Co-Authors: Mohamed Atef, R. Swoboda, H Zimmermann
    Abstract:

    Abstract An Optical Receiver with high sensitivity and linearity specially designed for Giga-bit communications over small-bandwidth high-attenuation multimode plastic Optical fiber is presented. An automatic gain control transimpedance amplifier and linear post amplifiers are used to maintain a good performance with multilevel modulation. Using multilevel signaling and large-diameter integrated photodiodes make the presented Optical Receiver suitable for large core plastic Optical fiber. For a wavelength of 675 nm, a sensitivity of −26.3 dB m (BER = 10 −9 ) at 500 Mb/s is presented by a binary signal. A data rate of 1 Gb/s and a sensitivity of −19.8 dB m (BER = 10 −9 ) are achieved with four-level pulse amplitude modulation.