利用注入锁定激光设计相干探测RF-IF下转换链路

Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on Pub Date : 2014-12-22 DOI:10.1109/MWP.2014.6994493

C. Lin, B. M. Pascoguin, S. B. Jester, D. C. Evans, J. Adleman, E. Jacobs

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引用次数: 2

摘要

介绍了一种利用注入锁定分布式反馈(DFB)激光器的相干检测RF-IF下转换链路。这种光子链路设计提供了几个射频性能优势。相干检测允许无二义恢复全时域I/Q中频信号。注入锁定激光器的设计放宽了对射频本振的调谐范围要求，并为有效的RF- if转换提供了高光功率，同时最大限度地减少了相位噪声对链路灵敏度的降低。级联注入锁定配置抑制了中频带中与LO相关的杂散音。给出了从射频c波段到ka波段的灵敏度和动态范围数据。

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Coherent detection RF-IF down converting link using injection locked laser design

A coherent detection RF-IF down converting link utilizing injection-locked distributed feedback (DFB) lasers is demonstrated. This photonic link design provides several RF performance advantages. Coherent detection allows unambiguous recovery of full time-domain I/Q IF signals. Injection locked laser design relaxes the tuning range requirement on RF local oscillators, and provides high optical power for efficient RF-IF conversion while minimizing degradation to link sensitivity due to phase noise. A cascaded injection locked configuration suppresses LO related spurious tones in the IF band is also demonstrated. Sensitivity and dynamic range data from RF C-band to Ka-band are presented.

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Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on

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