Optical semiconductor apparatus, fabrication method thereof, mod

Details Optical semiconductor apparatus, fabrication method thereof, mod Optical semiconductor apparatus, fabrication method thereof, mod

1997-09-17

1998-10-13

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

372 46, 372 27, H01S 319, H01S 323

Patent

active

058223525

ABSTRACT:
An optical semiconductor apparatus includes a single substrate, at least two semiconductor laser portions each having a semiconductor laser structure and a current injection unit for independently injecting currents into the at least two semiconductor laser portions. The semiconductor laser portions are serially arranged on the substrate in a light propagation direction and respectively includes waveguides having active layers, and layer-extending planes of the waveguides partially overlap and are not parallel to each other. The electric-field directions of TE modes in the respective semiconductor laser portions are parallel to the layer-extending planes of the waveguides, so that the non-parallel layer-extending planes of the waveguides can establish non-parallel TE modes in the respective semiconductor laser portions. In such an integrated optical semiconductor apparatus, such as an integrated semiconductor laser apparatus and an integrated semiconductor optical amplifier apparatus, the polarization mode dependency of gain can be controlled by unevenly injecting current into the semiconductor laser portions whose TE modes are not parallel to each other.

REFERENCES:
patent: 4785457 (1988-11-01), Asbeck et al.
patent: 5157544 (1992-10-01), Nitta
patent: 5309268 (1994-05-01), Nakamura et al.
patent: 5309275 (1994-05-01), Nishimura et al.
patent: 5414549 (1995-05-01), Nishimura et al.
patent: 5699373 (1997-12-01), Uchida et al.
J.C. Dyment, et al., "Proton-Bombardment Formation of Stripe-Geometry Heterostructure Lasers for 300 K CW Operation", Proceedings of the IEEE, vol. 60, No. 6, pp. 726-728, Jun. (1972).
T. Ishikawa, et al., "LiNbO.sub.3 Optical Waveguide Modulator for Bidirectional Transmission in Optical CATV Subscriber Systems," OCS 91-82, pp. 51-58 Mar. (1992).

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