1 December 2010 Phase noise reduction of a semiconductor laser in a composite optical phase-locked loop
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Abstract
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 (SPIE)
Naresh Satyan, Jacob B. Sendowski, Arseny Vasilyev, George A. Rakuljic, Amnon Yariv, "Phase noise reduction of a semiconductor laser in a composite optical phase-locked loop," Optical Engineering 49(12), 124301 (1 December 2010). https://doi.org/10.1117/1.3518077 . Submission:
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