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Updated: Aug 19, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

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Published on: December 18, 2015

在4.6μm波长的多Gb/s自由空间激光通信使用高速,室温,共振腔红外探测器 (RCID) 和量子级联激光

R Marsland, S Jacobs, C L Canedy

|November 14, 2024

概括

一个新的共振腔红外探测器 (RCID) 通过改善链接预算来增强自由空间激光通信. 这一突破为在雾等大气条件下提供了更可靠的数据传输.

科学领域:

光电学是指光电子产品.
自由空间光学通信自由空间光学通信

背景情况:

自由空间激光通信系统面临着大气挑战 (雾,雾,云层,流).
使用更长的红外波长可以减轻这些损害.
之前的系统受限于性能较低的收发器组件.

研究的目的:

报告一种新型的共振腔红外探测器 (RCID),用于改善自由空间激光通信.
克服红外激光系统现有的收发器组件的局限性.

主要方法:

开发一个具有4.6μm共振波长的RCID.
描述RCID的响应能力,噪声等效功率 (NEP) 和带宽.
使用分布式反量子级联激光器进行集成和测试.

主要成果:

与之前的报告相比,RCID实现了对~5Gb/s运行的20dB更大的链路预算.
该设备具有高响应率 (1.97 A/W),低NEP (0.7 pW/√Hz在室温下) 和高带宽 (6.7 GHz).
在调制激光功率和RCID噪声之间显示了>50dB的差异,超过了现有的设备.

结论:

开发的RCID显著提高了自由空间激光通信系统的性能.
该设备在恶劣的大气条件下提供可靠的光通信的可行解决方案.
这项技术为更强大,更有效的激光通信铺平了道路.

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Raman Spectroscopy Instrumentation: Overview

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