Semiconductor optical functional device

Details Semiconductor optical functional device Semiconductor optical functional device

1996-01-29

1998-01-20

Ullah, Akm E.

Optical waveguides

With optical coupler

Particular coupling function

G02B 626, G02B 642

Patent

active

057108471

ABSTRACT:
To obtain an optical functional device such that the reflectivity of a facet and the loss of coupling with a fiber are reduced, a mode conversion region for changing the beam spot size is formed on the input facet and/or the output facet in an optical function region and the facet of the side to be connected with a fiber in the mode conversion region is formed obliquely to the direction of propagation of light.

REFERENCES:
Electronics Letters Aug. 31, 1989, vol.25 No. 18, "Band Travelling-Wave Semiconductor Optical Amplifiers With Window Facet Structure" pp. 1241-1242.
Electronics Letters, Sep. 10, 1987 vol.23, No. 19, "Fabrication and Performance of 1.5 GalnAsP Travelling-Wave Laser . . . " pp. 990-991.
Institute of Electronics and Communication Engineers of Japan, MW 94-33, OPE94-26 (1994-6) pp. 67-72.

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