公开(公告)号：US06331908B1

公开(公告)日：2001-12-18

申请号：US09444470

申请日：1999-11-22

申请人： Laura Ellen Adams ,  Clyde George Bethea ,  Lars Erik Eskildsen ,  Gerald Nykolak ,  Rossevelt People ,  Tawee Tanbun-Ek

发明人： Laura Ellen Adams ,  Clyde George Bethea ,  Lars Erik Eskildsen ,  Gerald Nykolak ,  Rossevelt People ,  Tawee Tanbun-Ek

IPC分类号： H04B1004

CPC分类号： H04B10/2537

摘要： 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

摘要翻译： 可调谐半导体激光器包括具有MQW有源区，均匀间距光栅DFB区和第一波导的增益部。 包括第二MQW区域和第二波导的复合反射器与DFB区域形成空腔谐振器。 施加到复合反射器的调谐电压引起折射率变化，从而允许改变中心波长。 施加复合反射器的抖动信号使激光输出的频谱变宽，从而减少光纤系统中的SBS