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Proceedings Paper

100-Mbps coherent optical link demonstration using frequency-stabilized solid state lasers
Author(s): Chien-Chung Chen; Dalia Arbel; Moe Zaw Win
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Paper Abstract

The design, implementation, and performance evaluation of a 100Mbps binary phase shift keying (BPSK) coherent optical link using frequency stabilized solid state lasers is described. In this demonstration, the transmitted data is binary phase modulated at 100Mbps using an external resonant cavity phase modulator. At the receiving end, the signal is detected using a balanced heterodyne detector. An auxiliary frequency tracking loop (FTL) is used to help the initial frequency acquisition before handing over to the carrier phase tracking loop. The FTL is implemented using a delay line discriminator, and the detected frequency error is fed back to the local oscillator laser to close the tracking loop. Phase coherent reception is achieved by synchronizing the carrier phase using a Costas tracking loop. The demonstration showed that a high data rate phase coherent optical link can be implemented using frequency stabilized solid state lasers.

Paper Details

Date Published: 9 June 1992
PDF: 10 pages
Proc. SPIE 1635, Free-Space Laser Communication Technologies IV, (9 June 1992); doi: 10.1117/12.59281
Show Author Affiliations
Chien-Chung Chen, Jet Propulsion Lab. (United States)
Dalia Arbel, Jet Propulsion Lab. (United States)
Moe Zaw Win, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 1635:
Free-Space Laser Communication Technologies IV
David L. Begley; Bernard D. Seery, Editor(s)

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