Wavelength-tunable semiconductor laser
    39.
    发明授权
    Wavelength-tunable semiconductor laser 失效
    波长可调半导体激光器

    公开(公告)号:US4873691A

    公开(公告)日:1989-10-10

    申请号:US224726

    申请日:1988-07-27

    摘要: A wavelength-tunable semiconductor laser having an active part and an external waveguide part is disclosed. The external waveguide part has a diffraction grating, such as a distributed Bragg reflector, and a quantum well structure optically coupled to the diffraction grating, together with electrodes for impressing an electric field to the quantum well structure. By applying the electric filed to the quantum well structure, the refractive index in the optically coupled diffraction grating/quantum well structure, and light oscillation wavelength in the external waveguide part, can be varied.

    摘要翻译: 公开了一种具有有源部分和外部波导部分的波长可调谐半导体激光器。 外部波导部分具有衍射光栅,例如分布式布拉格反射器,以及光学耦合到衍射光栅的量子阱结构,以及用于向量子阱结构施加电场的电极。 通过将电场施加到量子阱结构,可以改变光耦合衍射光栅/量子阱结构中的折射率和外部波导部分中的光振荡波长。