NDLI: Very low phase-noise optical links

Content Provider	IEEE Xplore Digital Library
Author	Bibey, M.-B. Deborgies, F. Krakowski, M. Mongardien, D.
Copyright Year	1963
Abstract	Additive phase noise is studied in directly modulated optical links (1.55-/spl mu/m distributed-feedback laser and p-i-n photodiode). Up-conversion close to the microwave carrier, of the very low-frequency noise of the laser, is calculated. The phase-noise conversion factor is derived from the laser rate equations, as a function of laser parameters and modulation frequency. Noise sources are identified and included into the model to evaluate the microwave phase noise and then the noise-to-signal ratio in terms of phase fluctuations. Very low- and high-frequency relative intensity noise (RIN) laser measurements are performed. Theoretical RIN curves are calculated and laser parameters needed for the phase-noise model are deduced. Additive phase-noise measurements are performed. Good agreement is obtained between calculations and measurements. Very good additive phase-noise values have been obtained at 10-kHz offset: -148 and -139 dBc/Hz at 3 and 9 GHz, respectively.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	2257
Ending Page	2262
Page Count	6
File Size	126454
File Format	PDF
ISSN	00189480
Volume Number	47
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser modes Laser noise Laser theory Masers Phase noise Low-frequency noise Optical modulation Optical noise Phase modulation Signal to noise ratio
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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