Coherent light generators – Particular active media – Semiconductor
Patent
1997-11-06
2000-02-15
Healy, Brian
Coherent light generators
Particular active media
Semiconductor
372 43, 372 44, 372 45, 372105, 372106, H01S 319
Patent
active
060261072
ABSTRACT:
A semiconductor optical functional device is divided into two regions of a first region 1 and a second region 2 adjacent to each other in a longitudinal direction of a semiconductor optical waveguide. The first region 1 is provided with a region including an MQW structure in which a compressive strain is introduced, and the second region 2 is provided with a region including an MQW structure in which a tensile strain is introduced. Electrodes 3 and 4 formed separately and independently from each other are respectively disposed on the first region 1 and the second region 2, and bias voltages applied to the electrodes 3 and 4 are adjusted so that transmissivities for light having a TE mode component and light having a TM mode component are independently controlled.
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Healy Brian
NEC Corporation
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