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    • 8. 发明授权
    • Optical device
    • 光学装置
    • US06181850B2
    • 2001-01-30
    • US09102761
    • 1998-06-23
    • Noriyuki NakamuraYuzo OchiSatoshi SugayaYasuko Kawasaki
    • Noriyuki NakamuraYuzo OchiSatoshi SugayaYasuko Kawasaki
    • G02B632
    • G02B6/2937G02B6/2817G02B6/2938G02B6/4206
    • An optical device incorporating an incident-side optical waveguide portion having an incident terminal port and an outgoing terminal port which are connected with a fiber array, and an outgoing-side optical waveguide portion having another outgoing terminal port. Between the incident-side and outgoing-side optical waveguide portions, there is disposed a wavelength division multiplexer for sending back an incident beam from the incident-side optical waveguide portion to the incident-side optical waveguide portion and permitting a part of the incident beam to pass therethrough. Between the wavelength division multiplexer and the outgoing-side optical waveguide portion, a polarization-independent type optical isolator is disposed. Between the wavelength division multiplexer and the incident-side optical waveguide portion, a first lens is disposed, and between the wavelength division multiplexer and the polarization-independent type optical isolator, a second lens is disposed.
    • 一种具有入射端光端口和与光纤阵列连接的输出端口的入射侧光波导部分和具有另一出射端口的出射侧光波导部分的光学装置。 在入射侧光波导部分和出射侧光波导部分之间设置有波分复用器,用于将入射光束从入射侧光波导部分发送回入射侧光波导部分,并允许入射光束的一部分 通过。 在波分复用器和出射侧光波导部分之间,设置偏振无关型光隔离器。 在波分多路复用器和入射侧光波导部分之间,设置第一透镜,并且在波分复用器和偏振无关型光隔离器之间设置第二透镜。