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Proceedings Paper

Lasers frequency stabilization, channel identification, state of polarization, and their interaction in multichannel coherent optical systems
Author(s): G. Di Maio; Monica Tesauri; Stefano Baroni; Piero Gambini
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Paper Abstract

Simple solutions to stabilize the frequency of the transmitter lasers and to eliminate the influence of the state of polarization on the receiver gain and frequency control signals and on the channel identification in a High Density Wavelength Division Multiplexing environment has been theoretically investigated and experimentally verified. It has been proved that, by using the proposed technique, the separation of such frequency is maintained constant within the limit of the beat linewidth. It has been proved also the ability of a mixer-based system in keeping constant the power of the control signal at the receiver. An improved scheme for channel identification based on a low pass filter, a zero-bias diode and a frequency-to-voltage converter is finally proposed and test results are presented. All the above-mentioned solutions have been tested on a 622 Mbit/s FSK multichannel coherent optical system.

Paper Details

Date Published: 17 February 1995
PDF: 12 pages
Proc. SPIE 2450, Broadband Networks: Strategies and Technologies, (17 February 1995); doi: 10.1117/12.201292
Show Author Affiliations
G. Di Maio, Univ. degli Studi di Parma (Italy)
Monica Tesauri, Univ. degli Studi di Parma (Italy)
Stefano Baroni, Univ. degli Studi di Parma (Italy)
Piero Gambini, Univ. degli Studi di Parma (Italy)


Published in SPIE Proceedings Vol. 2450:
Broadband Networks: Strategies and Technologies
Robert A. Cryan; P. Nalinaj Fernando; Pierpaolo Ghiggino; John M. Senior, Editor(s)

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