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Design of Si-bipolar Monolithic Main Amplifier IC for Optical Fiber Receivers 被引量:1
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作者 zhangyaqi ZHAOHongmin 《Semiconductor Photonics and Technology》 CAS 1999年第1期51-57,共7页
A broadband amplifier with transadmittance and transimpedance stages is designed and two types of improved AGC amplifiers are developed on the base of theory study. Making use of the basic amplifier cells, a main ampl... A broadband amplifier with transadmittance and transimpedance stages is designed and two types of improved AGC amplifiers are developed on the base of theory study. Making use of the basic amplifier cells, a main amplifier IC for optical-fiber receivers is deliberated. By computer simulating the performances of the designed main amplifier meet the necessity of high gain and wide dynamic range . They are maximum voltage gain of 42 dB, the bandwidth of 730 MHz,the input signal( V p-p )range from 5 mV to 1 V,the output amplitude about 1 V, the dynamic range of 46 dB. The designed circuit containing no inductance and large capacitance will be convenient for realizing integration. A monolithic integrated design of 622 Mb/s main amplifier is completed. 展开更多
关键词 Digital Optical Fiber Receiver Main Amplifier Monolithic Integrated Circuit
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Design of 622 Mb/s Clock-recovery Monolithic IC for Optical Communication System
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作者 zhangyaqi ZHAOJie 《Semiconductor Photonics and Technology》 CAS 1998年第3期159-165,173,共8页
A monolithic clock-recovery circuit used in 622 Mb/s optical communication system is designed,which is based on the phase-locked loop theory,and uses bipolar transistor model.It overcomes the shortcoming of clock reco... A monolithic clock-recovery circuit used in 622 Mb/s optical communication system is designed,which is based on the phase-locked loop theory,and uses bipolar transistor model.It overcomes the shortcoming of clock recovery method based on filter,and implements monolithic clock-recovery IC.The designed circuits include phase detector,voltage-controlled oscillator and loop filter.Among them,the voltage-control oscillator is a modified two-stage ring oscillator,which provides quadrature clock signals and presents wide voltage-controlled range and high voltage-controlling sensitivity. 展开更多
关键词 Clock-recovery Phase Detector Phase-locked Loop Voltage-controlled Oscillator
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Research and Design of Monolithic Decision Circuit for Optical Communication System
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作者 zhangyaqi ZHAOJie 《Semiconductor Photonics and Technology》 CAS 1997年第4期262-268,共7页
In this paper,the cause of bit-error is analyzed when data are decided in the optical receiver.A monolithic D-ff decision circuit is designed.It can work effectively at 622 Mb/s.Moreover,a decision method of parallel ... In this paper,the cause of bit-error is analyzed when data are decided in the optical receiver.A monolithic D-ff decision circuit is designed.It can work effectively at 622 Mb/s.Moreover,a decision method of parallel processing to improve the decision speed is presented,through which the parallel circuit can work up to 1 Gb/s using the same model.With the technique,higher-speed data can be decided by using lower speed device. 展开更多
关键词 BER D-ff Decision Circuit MULTIPLEXER Parallel Processing
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Theoretical Analysis and Calculation for Rotatory Optic Fiber
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作者 BAOZhenwu zhangyaqi 《Semiconductor Photonics and Technology》 CAS 1997年第4期274-279,共6页
Using electromagnetic field theory of dielectric in a cylindrical coordinates system,the theoretical analysis and calculation for a rotatory optic fiber are presented in this paper.
关键词 Anisotropic Dielectronic Rotatory Coefficient Rotatory Optic Fiber Twin Scalar Waves
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