在光纤通信系统中,光接收机(Optical receiver)的任务是以最小的附加噪声及失真,恢复出光纤传输后由光载波所携带的信息,因此光接收机的输出特性综合反映了整个光纤通信系统的性能。 光发射机发射的光信号经传输后,不仅幅度衰减了,而且脉冲波形也展宽了,光接收机的作用就是检测经过传输的微弱光信号,并放大、整形、再生成原传输信号。
速率级CMOS限幅放大器*_电子资料文库 关键字: 光接收机, 主放大器, 限幅放大器, CMOS工艺 [gap=626]Key wordoptical receiver, main amplifier, limiting amplifier, CMOS technology
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接收机 中文名称: 光接收机 英文名称: optica … 光发射机 概念 光发射机的作用是将从复用设备送… 1 基本内容 目录 顶部 目录 顶部 帮助 提意见 Copyright 基于2个网页 - 相关网页 短语
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激光接收机 [电讯] laser receiver
声光接收机 acousto-optic receiver
单脉冲式光接收机 monopulse optical receiver
相干光接收机 coherent optical receiver
混合光接收机 hybrid opto-receiver ; receiver
超外差光接收机 optical superheterodyne receiver
外差光接收机 heterodyne optical receiving set
偏振分集光接收机 polarization-diversity optical receiver
光接收机模块 optical receiver module
If no measures are taken, the serious basic-line-shift as well as the loss of chip clock and the difficulty of the data recovery will be introduced in the optical receiver, which causes the communication to go along abnormally.
如果不采取任何措施,会给光接收机带来严重的基线漂移,同时会引起码时钟丢失和码元恢复困难等一系列问题,导致通信无法正常进行。
参考来源 - 智能化数字光纤传输系统的设计与实现In this paper the complete noise equivalent circuit models for PIN and HEMT devices are presented. The accurate analysis and calculation for 2.5Gb/s PIN-HEMT optical receiver noise and sensitivity are made.
本文给出了完整的PIN和HEMT器件噪声等效电路模型,对2.5Gb/sPIN-HEMT光接收机噪声和灵敏度进行了精确的分析计算,并讨论了低频闪烁噪声对灵敏度退化的影响,光接收机噪声实测结果与模拟分析结果数据符合很好。
参考来源 - 2.5Gb/s PIN·2,447,543篇论文数据,部分数据来源于NoteExpress
对相干探测与非相干探测等几种光接收机接收方式进行了分析与比较。
Then it has discussed system of acceptance, including coherent detection and non-coherent detection.
该光接收机采用单电源供电,由一级放大器、两级源级跟随器和一个反馈电阻组成。
It is composed of an amplifier stage, two stages of source follower and a feedback resistance, and use a single supply voltage.
根据光接收机前端等效电路模型,建立了噪声系数与等效输入噪声电流谱密度的关系。
Based on the equivalent circuit model of a two-port optical receiver front-end, the relationship between the equivalent input noise current spectral density and the noise figure is analyzed.
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