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    • 10. 发明授权
    • Semiconductor laser device having an active layer and a resonator having
a single reflector or pair of reflectors
    • 具有有源层和谐振器的半导体激光器件具有单个反射器或一对反射器
    • US5497389A
    • 1996-03-05
    • US265875
    • 1994-06-27
    • Akihiko KasukawaNorihiro Iwai
    • Akihiko KasukawaNorihiro Iwai
    • H01S3/131H01S5/028H01S5/343H01S3/10
    • B82Y20/00H01S5/028H01S3/1317H01S5/0284H01S5/34306
    • There are provided a semiconductor laser device equipped with improved reflectors at the opposite ends of the resonator and capable of preventing any rise in the laser oscillation threshold current and reduction in the quantum efficiency due to temperature rise and a laser module comprising such a semiconductor laser device that operates effectively and efficiently at high temperature and can be downsized at reduced cost. The reflector 23 or 26 disposed at either end of the resonator 22 of a semiconductor laser device 21 according to the invention have a reflectivity that increases with the oscillation wavelength of the device within a range (.lambda..sub.1 to .lambda..sub.1) as a function of the operating temperature of the device. A laser module 31 according to the invention comprises such a semiconductor laser device 21 as a principal component. The semiconductor laser device 21 and therefore the laser module 31 comprising such a device have an improved temperature dependency because its reflector loss is reduced as the device temperature rises.
    • 提供了一种半导体激光装置,其在谐振器的相对端配备有改进的反射器,并且能够防止激光振荡阈值电流的任何上升以及由于温度升高而导致的量子效率的降低以及包括这种半导体激光装置的激光器模块 在高温下有效高效地运转,可以降低成本。 设置在根据本发明的半导体激光器装置21的谐振器22的任一端处的反射器23或26的反射率随着器件的振荡波长随着作为功率的范围(λ1至λ1)而增加 设备的工作温度。 根据本发明的激光器模块31包括作为主要部件的这种半导体激光器装置21。 因此,半导体激光装置21,因此包括这种装置的激光模块31具有改善的温度依赖性,因为其反射器损耗随着装置温度升高而降低。