19 June 1995 Theory of semiconductor laser with phase-conjugate optical feedback
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Abstract
The effects of phase-conjugate feedback on a semiconductor laser are studied, beginning with a derivation based on linear response theory of the single-mode field rate equation. For sufficiently high feedback levels and fast-responding PCM, a multimode extermal cavity mode spectrum emerges analogous to that of the conventional feedback case, except that the spacing of the modes is half that of the latter, and tuning is possible by varying the frequency of the PCMs pump laser relative to that of the free-running laser. The latter may also be used as a control parameter to achieve stable operation at high feedback levels, and to maximize the fraction of energy in the central 'spike' of the laser spectrum. The extermal cavity modes also show up as spikes in the RIN and phase noise spectra. Finally, the effects of pump linewidth on laser linewidth reduction and finite PCM response time are described.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Erik J. Bochove, "Theory of semiconductor laser with phase-conjugate optical feedback", Proc. SPIE 2399, Physics and Simulation of Optoelectronic Devices III, (19 June 1995); doi: 10.1117/12.212543; https://doi.org/10.1117/12.212543
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