发明授权
US6026108A Vertical-cavity surface-emitting laser with an intracavity quantum-well optical absorber 失效
具有腔内量子阱光吸收器的垂直腔表面发射激光器

Vertical-cavity surface-emitting laser with an intracavity quantum-well
optical absorber
摘要:
A laser comprises a first contact to receive an active region control signal, a second contact to receive an optical absorber control signal, and a sandwich of distributed Bragg reflector mirror stacks. Each distributed Bragg reflector mirror stack has an alternate doping with respect to an adjacent distributed Bragg reflector mirror stack. An active region is positioned in the sandwich to provide optical gain in response to the active region control signal. An optical absorber is positioned in the sandwich. The optical absorber has wavelength dependent absorption in response to the optical absorber control signal. The device of the invention may be utilized as an integrated detector, a self-pulsating laser, a high speed intracavity modulator, or an optical pick-up device.
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