发明名称 |
Duobinary optical transmission device using one semiconductor optical amplifier |
摘要 |
A duobinary optical transmission device provides duobinary optical transmission with improved quality by a technique that does not require an electrical low pass filter LPF A duobinary optical transmission device includes at least one semiconductor optical amplifier (SOA). A light source outputs a carrier wave as an optical signal. A precoder encodes an input of a non-return-to-zero (NRZ) electrical signal. An interferometer type semiconductor optical amplification unit modulates the carrier wave according to a change of an applied bias current coupled to the encoded signal. An optical band pass filter (OBPF) receives the phase-modulated optical signal from the semiconductor optical amplification unit, filters the received phase-modulated optical signal according to a designated band, and outputs an optical duobinary signal. <IMAGE>
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申请公布号 |
EP1511195(A1) |
申请公布日期 |
2005.03.02 |
申请号 |
EP20040015790 |
申请日期 |
2004.07.05 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE, HAN-LIM;LEE, GYU-WOONG;OH, YUN-JE;HWANG, SEONG-TAEK |
分类号 |
H01S5/50;H04B10/25;H04B10/2507;H04B10/516;H04B10/556;H04B10/588;H04B10/61;(IPC1-7):H04B10/155 |
主分类号 |
H01S5/50 |
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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