Published December 2010
| Published
Journal Article
Open
Phase noise reduction of a semiconductor laser in a composite optical phase-locked loop
Abstract
The bandwidth and residual phase noise of optical phaselocked 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.
Additional Information
© 2010 Society of Photo-Optical Instrumentation Engineers. Paper 100682R received Aug. 23, 2010; revised manuscript received Sep. 30, 2010; accepted for publication Oct. 12, 2010; published online Dec. 6, 2010. The authors acknowledge useful discussions with Yasha Vilenchik at Caltech.Attached Files
Published - Satyan2010p12708Opt_Eng.pdf
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Satyan2010p12708Opt_Eng.pdf
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Additional details
- Eprint ID
- 22646
- Resolver ID
- CaltechAUTHORS:20110303-150239561
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2011-03-03Created from EPrint's datestamp field
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2021-11-09Created from EPrint's last_modified field