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    • 8. 发明授权
    • Wavelength division multiplexer/demultiplexer
    • 波分复用器/解复用器
    • US07327912B2
    • 2008-02-05
    • US10607466
    • 2003-06-26
    • Young-Hoon KimSun-Tae JungDong-Kyoon Han
    • Young-Hoon KimSun-Tae JungDong-Kyoon Han
    • G02B6/26
    • G02B6/12016
    • Disclosed is a wavelength division multiplexer/demultiplexer having a grating for demultiplexing a multiplexed optical signal, an input waveguide and an output waveguides. The input waveguide comprises a first sub-waveguide having a width that gradually increases in a progressing direction of the optical signal and a second sub-waveguide having a width that gradually decreases in the progressing direction of the optical signal passing through the first sub-waveguide. Since the inputted optical signal within the increased portion of the input waveguide has an expended bandwidth and the inputted optical signal within the decreased portion of the input waveguide has a reduced side lobe, an interference effect is prevented, which may be generated between neighboring channels, and improves quality of the optical signal transmitted and received in a wavelength division multiplexed (WDM) optical communication network.
    • 公开了具有用于多路复用光信号的光栅,输入波导和输出波导的波分复用器/解复用器。 输入波导包括第一子波导,其具有在光信号的进行方向上逐渐增加的宽度,以及具有在通过第一子波导的光信号的进行方向上逐渐减小的宽度的第二子波导 。 由于在输入波导的增加部分内的输入光信号具有消耗带宽,并且输入波导的减少部分内的输入光信号具有减小的旁瓣,因此可以防止在相邻信道之间产生的干扰效应, 并提高在波分多路复用(WDM)光通信网络中发送和接收的光信号的质量。