Coherent light generators – Particular active media – Semiconductor
Patent
1997-10-20
1999-11-23
Bovernick, Rodney
Coherent light generators
Particular active media
Semiconductor
372 38, 372 20, 372 26, 372 96, H01S 319, H01S 300, H01S 310, H01S 308
Patent
active
059913231
ABSTRACT:
A tunable semiconductor laser comprises a gain section having an MQW active region, a uniform pitch grating DFB region, and first waveguide. A composite reflector, including a second MQW region and a second waveguide, forms a cavity resonator with the DFB region. A tuning voltage applied to the composite reflector induces a quantum confined stark effect, thereby allowing the center wavelength to be altered. A pre-chirp signal applied the composite reflector reduces signal distortion in fiber optic systems.
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Adams Laura Ellen
Bethea Clyde George
Nykolak Gerald
People Roosevelt
Tanbun-Ek Tawee
Bovernick Rodney
Leung Quyen Phan
Lucent Technologies - Inc.
Pacher Eugene E.
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