发明名称 |
OPTICAL MODULATION METHOD AND SYSTEM IN WAVELENGTH LOCKED FP-LD BY INJECTING BROADBAND LIGHT SOURCE USING MUTUALLY INJECTED FP-LD |
摘要 |
<p>The present invention relates to an optical modulation method and optical modulation system of a wavelength locked Fabry Perot-Laser Diode (FP-LD) by injecting a broadband light source (BLS) using mutual injection of FP-LDs. More specifically, the present invention relates to a novel modulation technology which embodies a wavelength locked FP-LD capable of being used as an economic light source in an optical network based on a wavelength-division multiplexing passive optical network (WDM-PON). According to the present invention, a light modulation system is suggested comprising: BLS being constructed by mutual injection between two FP-LDs and an optical fiber being used for light transmission; first AWG for filtering light from a plurality of oscillation modes of the BLS into n group; n FP-LDs outputting wavelength locked light which is divided through the first AWG; an encoder being provided at a transmitting end of a subscriber to which the output from the first AWG is transmitted; a circulator outputting light which is inputted through the first AWG; second AWG de-multiplexing WDM signals from the first AWG into n group; and a decoder being provided at a receiving end to which the output from the second AWG is transmitted. Therefore, the present invention makes it possible to provide a more economic light source for WDM-PON subscribers by embodying a wavelength locked FP-LD by injecting a low-cost BLS.</p> |
申请公布号 |
WO2006052075(A1) |
申请公布日期 |
2006.05.18 |
申请号 |
WO2005KR03767 |
申请日期 |
2005.11.08 |
申请人 |
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY;LEE, CHANG-HEE;CHOI, KI-MAN |
发明人 |
LEE, CHANG-HEE;CHOI, KI-MAN |
分类号 |
H04B10/27;H04B10/272;H04B10/40;H04B10/50;H04B10/516;H04B10/524;H04B10/54;H04B10/60;H04B10/61;H04J14/00;H04J14/02 |
主分类号 |
H04B10/27 |
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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