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首页> 外文学位 >High-sensitivity high-speed semiconductor optically preamplified 980 NM receiver for satellite-to-satellite communication.
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High-sensitivity high-speed semiconductor optically preamplified 980 NM receiver for satellite-to-satellite communication.

机译：高灵敏度高速半导体光学前置放大器980 NM，用于卫星到卫星通信。

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摘要

This dissertation investigates using a semiconductor optical amplifier (SOA) to implement a high-sensitivity, high-speed optical receiver operating at 980 nm for free space satellite-to-satellite communication. The optical amplifier boosts the incoming optical signal enabling use of high-speed photodiode detector rather than a more sensitive but lower bandwidth avalanche photodiode (APD).;We fabricated a high-gain, low noise SOA operating in the 980 nm wavelength regime. The noise figure of this amplifier (5.1 dB) was the lowest ever obtained for a non-buried-heterostructure SOA. Signal-to-noise ratio (S/N) measurements demonstrated for the first time that the conventional optical power noise figure measurement method can overestimate the noise figure by as much as 2 dB when amplified spontaneous emission (ASE) gain saturates the SOA.;A high-sensitivity optical receiver was implemented using a high-gain ;The optical preamplifier increased the S/N ratio sensitivity of the PIN/FET receiver by 18 dB and achieved ;A 25 GHz optically preamplified receiver was also implemented that achieved equivalent sensitivity to that of the 300 MHz receiver. Demonstrating for the first time that the sensitivity of an optically preamplified receiver can be made independent of the photodetector bandwidth with extrapolated operation up to 120 GHz.
机译：本文研究了使用半导体光放大器（SOA）来实现工作于980 nm的高灵敏度，高速光接收器，用于自由空间卫星到卫星通信的方法。光放大器增强入射光信号，从而可以使用高速光电二极管检测器，而不是使用更灵敏但带宽较低的雪崩光电二极管（APD）。我们制造了工作在980 nm波长范围的高增益，低噪声SOA。对于非埋藏异质结构SOA，该放大器的噪声系数（5.1 dB）是有史以来最低的。信噪比（S / N）测量首次证明，当放大的自发发射（ASE）增益使SOA饱和时，传统的光功率噪声系数测量方法可以高估噪声系数高达2 dB。高增益实现了高灵敏度的光接收器；光前置放大器将PIN / FET接收器的信噪比灵敏度提高了18 dB，并且实现了； 25 GHz的光前置放大接收器也实现了与300 MHz接收机的频率。首次证明可以通过高达120 GHz的外推操作使光学前置放大器的灵敏度与光电检测器带宽无关。

著录项

  • 作者

    Heim, Peter John Schultz.;

  • 作者单位

    University of Maryland, College Park.;

  • 授予单位 University of Maryland, College Park.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 1996
  • 页码 177 p.
  • 总页数 177
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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