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Phase noise reduction of a semiconductor laser in a composite optical phase-locked loop

Opt. Eng. 49, 124301 (Dec 06, 2010); http://dx.doi.org/10.1117/1.3518077

Naresh Satyan and Jacob Sendowski

California Institute of Technology, Department of Electrical Engineering, 1200 East California Boulevard 136-93, Pasadena, California 91125

Arseny Vasilyev

California Institute of Technology, Department of Applied Physics, 1200 East California Boulevard 128-95, Pasadena, California 91125

George Rakuljic

Telaris Incorporated, 2118 Wilshire Boulevard #238, Santa Monica, California 90403

Amnon Yariv

California Institute of Technology, Department of Applied Physics and California Institute of Technology, Department of Electrical Engineering, 1200 East California Boulevard 128-95, Pasadena, California 91125

The bandwidth and residual phase noise of optical phase-locked loops (OPLLs) using semiconductor lasers are typically constrained by the nonuniform frequency modulation response of the laser, limiting their usefulness in a number of applications. It is shown in this work that additional feedback control using an optical phase modulator improves the coherence between the master and slave lasers in the OPLL by achieving bandwidths determined only by the propagation delay in the loop. A phase noise reduction by more than a factor of two is demonstrated in a proof-of-concept experiment using a commercial distributed feedback semiconductor laser.

© 2010 Society of Photo-Optical Instrumentation Engineers

History
Received Aug 23, 2010
Accepted Oct 12, 2010
Revised Sep 30, 2010
Published online Dec 06, 2010
Citation
Naresh Satyan, Jacob Sendowski, Arseny Vasilyev, George Rakuljic and Amnon Yariv, "Phase noise reduction of a semiconductor laser in a composite optical phase-locked loop", Opt. Eng. 49, 124301 (Dec 06, 2010); http://dx.doi.org/10.1117/1.3518077

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