Coherent optical receiver system with balanced photodetection

Abhay Joshi; Don Becker; Christoph Wree; Dan Mohr

doi:10.1117/12.664194

12 May 2006 Coherent optical receiver system with balanced photodetection

Abhay Joshi, Don Becker, Christoph Wree, Dan Mohr

Proceedings Volume 6243, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications II; 62430E (2006) https://doi.org/10.1117/12.664194
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

We report the development of a coherent heterodyne balanced fiber optic receiver with a small laboratory footprint. The receiver incorporates a DFB or a solid state laser local oscillator, fiber optic combiner/splitter, adjustable fiber optic delay line, balanced PIN photodiodes, RF post amplifier, optical phase lock loop, polarization control, and precision power supplies in a small instrument case. We will show shot noise limited detection of amplitude modulated signals, cancellation of laser RIN noise, and line narrowing of the IF signal. Several examples of coherent balanced detection as enabling technology for high value applications in fiber optic communication and remote sensing will be presented.

Citation Download Citation

Abhay Joshi, Don Becker, Christoph Wree, and Dan Mohr "Coherent optical receiver system with balanced photodetection", Proc. SPIE 6243, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications II, 62430E (12 May 2006); https://doi.org/10.1117/12.664194

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