Experimental determination of power penalty contributions in an optical Costas-type phase-locked loop receiver

Dieter F. Hornbachner; Martin A. Schreiblehner; Walter R. Leeb; Arpad L. Scholtz

doi:10.1117/12.59251

9 June 1992 Experimental determination of power penalty contributions in an optical Costas-type phase-locked loop receiver

Dieter F. Hornbachner, Martin A. Schreiblehner, Walter R. Leeb, Arpad L. Scholtz

Author Affiliations +

Proceedings Volume 1635, Free-Space Laser Communication Technologies IV; (1992) https://doi.org/10.1117/12.59251
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

We designed, realized and tested a 140 Mbit/s P5K optical homodyne receiver using diode-pumped Nd:YAG ring lasers at X = 1.064im. Phase synchronization between the input signal and the local oscillator laser was achieved using a Costas-type phase-locked ioop. Pre-processing of the optical signals to be synchronized was done with a basically lossless six-port 90° hybrid. Each one of the employed front ends was implemented by means of a transimpedance preamplifier and by two InGaAs photodiodes operating in a balanced manner. We report on the receiver configuration, emphasizing the realization of the optical pre-processing unit and the front ends. Furthermore, we present measurement results characterizing the receiver performance by the bit-error rate dependence on optical input signal power. The total degradation of the receiver sensitivity -as compared to the ideal case of shot-noise limitation - was 5.9dB.

Citation Download Citation

Dieter F. Hornbachner, Martin A. Schreiblehner, Walter R. Leeb, and Arpad L. Scholtz "Experimental determination of power penalty contributions in an optical Costas-type phase-locked loop receiver", Proc. SPIE 1635, Free-Space Laser Communication Technologies IV, (9 June 1992); https://doi.org/10.1117/12.59251

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