External ring cavity modes of semiconductor laser using photorefractive double phase-conjugate mirror

Cunkai Wu; Yang Zhao

doi:10.1117/12.255477

25 October 1996 External ring cavity modes of semiconductor laser using photorefractive double phase-conjugate mirror

Cunkai Wu, Yang Zhao

Proceedings Volume 2849, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications II; (1996) https://doi.org/10.1117/12.255477
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

Phase-conjugate external ring cavity modes of semiconductor lasers and phase-conjugate feedback effects were investigated. The phase-conjugate ring cavity is formed with a double phase-conjugate mirror. The effects of bi- and uni- directional phase-conjugate feedback on the operating state of a laser diode were studied. When the bidirectional phase- conjugate feedback is above -40 dB, the output spectrum of the laser is broadened and the operating state of the laser changes to multimode state. It was experimentally observed that in the ring cavity two opposite traveling waves, which are phase conjugates of each other, propagate.

Citation Download Citation

Cunkai Wu and Yang Zhao "External ring cavity modes of semiconductor laser using photorefractive double phase-conjugate mirror", Proc. SPIE 2849, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications II, (25 October 1996); https://doi.org/10.1117/12.255477

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