Phase noise characteristics of wavelength conversion based on four-wave mixing in semiconductor optical amplifiers and dispersion-shifted fibers

Hercules Simos; Eugenia Roditi; Dimitrios Syvridis

doi:10.1117/12.470566

12 June 2002 Phase noise characteristics of wavelength conversion based on four-wave mixing in semiconductor optical amplifiers and dispersion-shifted fibers

Hercules Simos, Eugenia Roditi, Dimitrios Syvridis

Author Affiliations +

Proceedings Volume 4646, Physics and Simulation of Optoelectronic Devices X; (2002) https://doi.org/10.1117/12.470566
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

Abstract

A major advantage of the Four Wave Mixing technique for wavelength conversion is its transparency to modulation format. This advantage becomes important for some IP over WDM network realizations where part of the signaling information is an analog or subcarrier modulation approach. In such applications the phase noise characteristics of the conversion process are very important. In this work, a detailed theoretical and experimental study of the additional phase noise induced by the FWM process is presented. The nonlinear elements used in the experiments are semiconductor optical amplifiers as well as dispersion shifted fibers. Two linewidth measuring techniques have been used, the self-homodyne and the beating with a laser source with already known linewidth. The measurements are carried out for different operating conditions (wavelength, pumping level of the nonlinear elements, input power, input signals with different phase noise characteristics, etc). The theoretical interpretation of the above results is based on a modification (inclusion of the influence of the amplified spontaneous emission noise) of an already presented approach which has focused on the mixing process in a resonant optical cavity.

Citation Download Citation

Hercules Simos, Eugenia Roditi, and Dimitrios Syvridis "Phase noise characteristics of wavelength conversion based on four-wave mixing in semiconductor optical amplifiers and dispersion-shifted fibers", Proc. SPIE 4646, Physics and Simulation of Optoelectronic Devices X, (12 June 2002); https://doi.org/10.1117/12.470566

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