Distributed feedback semiconductor laser diode, method for produ

Details Distributed feedback semiconductor laser diode, method for produ Distributed feedback semiconductor laser diode, method for produ

1997-04-11

1999-09-28

Bovernick, Rodney

Coherent light generators

Particular resonant cavity

Distributed feedback

372 92, 372 46, 372 45, H01S 308

Patent

active

059600233

ABSTRACT:
A distributed feedback semiconductor laser diode includes an active layer for generating stimulated emission light and also includes a diffraction grating. The diffraction grating serves as a structure for providing a refractive index distribution and a gain distribution where the refractive index and the gain for the stimulated emission light exhibit a periodical change at an identical single period in the guiding direction of the stimulated emission light. A distributed feedback based on refractive index coupling and a distributed feedback based on gain coupling coexist in the distributed feedback semiconductor laser diode. The diffraction grating includes a phase discontinuous section where a phase of the periodical change of the refractive index and the gain is discontinuous. The phase discontinuous section is configured so that the phase shifts are

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M. Okai et al., The Extended Abstracts of the Spring Convention of the Japanese Society of Applied Physics (1994). Partial Translation enclosed. Two pages total. (No month available).

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