发明名称 |
PLC-TYPE DELAY DEMODULATION CIRCUIT AND PLC-TYPE OPTICAL INTERFEROMETER |
摘要 |
Disclosed are a PLC-type delay demodulation circuit and a PLC-type optical interferometer capable of reducing the size of a PLC chip with respect to the arrangement of various kinds of light output waveguides. In a PLC-type delay demodulation circuit, arm waveguides of a first MZI and arm waveguides of a second MZI are formed so as to overlap each other in the same region of a planar lightwave circuit. The optical paths of the MZIs are arranged such that the propagation directions of two DQPSK signals branched by a Y-branch waveguide are opposite to each other.
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申请公布号 |
US2013010350(A1) |
申请公布日期 |
2013.01.10 |
申请号 |
US201213614692 |
申请日期 |
2012.09.13 |
申请人 |
FUJITSU OPTICAL COMPONENTS LIMITED;FURUKAWA ELECTRIC CO., LTD.;KAWASHIMA HIROSHI;NARA KAZUTAKA;SHIBATA KOHEI |
发明人 |
KAWASHIMA HIROSHI;NARA KAZUTAKA;SHIBATA KOHEI |
分类号 |
G02F2/00;H04B10/67 |
主分类号 |
G02F2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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