Patent Number: 6,166,837

Title: WDM system for reduced SBS

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 refractive index changes, thereby allowing the center wavelength to be altered. A dither signal applied the composite reflector broadens the spectrum of the laser output, thereby reducing SBS in fiber optic systems

Inventors: Adams; Laura Ellen (Basking Ridge, NJ), Bethea; Clyde George (Franklin, NJ), Eskildsen; Lars Erik (Lyngby, DK), Nykolak; Gerald (Long Beach Long Island, NY), People; Roosevelt (Plainfield, NJ), Tanbun-Ek; Tawee (Califon, NJ)

Assignee: Lucent Technologies Inc.

International Classification: H01S 5/0625 (20060101); H01S 5/00 (20060101); H01S 5/062 (20060101); H04J 014/02 ()

Expiration Date: 12/26/2017