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HL: Fachverband Halbleiterphysik
HL 10: Semiconductor Lasers I
HL 10.6: Talk
Monday, March 20, 2017, 11:15–11:30, POT 06
Generation of high frequency oscillations independently of the external cavity length in a semiconductor laser with optical feedback — •Chi-Hak UY1, Lionel WEICKER1, Martin VIRTE2, Emeric MERCIER1, Delphine WOLFERSBERGER1, and Marc SCIAMANNA1 — 1LMOPS, CentraleSupélec, 2 rue Edouard Belin 57000 Metz FRANCE — 2Brussels Photonic Team, Department of Applied Physics and Photonics (B-PHOT TONA), Vrije Universiteit Brussels, Pleinlaan 2, 1050 Brussels, Belgium
We numerically investigate the external cavity modes generated by a semiconductor laser subject to a phase-conjugate optical feedback (PCF). We explore the effects of both the cavity length and the feedback rate on the frequency of the external cavity modes which are periodical solutions in PCF configuration. From this analysis, we observe that a short cavity does not necessarily leads to higher frequency oscillations and highlight that the key parameter for the generation of such solutions is the feedback rate. Indeed, independently of the time delay the feedback strength fixes the frequency of the solutions obtained. Finally, we investigate the Hopf bifurcations and their frequencies and deduct the frequency of the external cavity modes expected.