发明名称 |
Duobinary optical transmitter |
摘要 |
Disclosed is a duobinary optical transmitter, which includes a laser source for outputting light with a predetermined wavelength; a Mach-Zehnder interferometer-type optical intensity modulator for modulating the intensity of the light according to a three-level data signal inputted through a modulation terminal; a low-pass filter for converting an inputted two-level binary data signal into a three-level data signal through an interference among codes; and, a modulator driver/amplifier for amplifying the three-level data signal and then outputting it to the modulation terminal, wherein the overall bandwidth of the low-pass filter, the modulator driver/amplifier, and the optical intensity modulator corresponds to approximately ¼ of the clock frequency of the two-level binary data signal.
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申请公布号 |
US2004071473(A1) |
申请公布日期 |
2004.04.15 |
申请号 |
US20030638814 |
申请日期 |
2003.08.11 |
申请人 |
LEE HAN-LIM;HWANG SEONG-TAEK;CHEUNG HEE-WON;OH YUN-JE;JEONG JI-CHAI;KANG BYUNG-CHANG |
发明人 |
LEE HAN-LIM;HWANG SEONG-TAEK;CHEUNG HEE-WON;OH YUN-JE;JEONG JI-CHAI;KANG BYUNG-CHANG |
分类号 |
G02F1/03;H04B10/00;H04B10/04;H04B10/06;H04B10/142;H04B10/145;H04B10/152;H04B10/155;(IPC1-7):H04B10/04 |
主分类号 |
G02F1/03 |
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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