发明名称 |
Wavelength-division multiplexed passive optical network for embodying wavelength-independent operation of wavelength-locked Fabry-Perot laser diodes by injecting a low noise broadband light source |
摘要 |
The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) which embodies wavelength-independence of wavelength-locked Fabry Perot-Laser Diode (F-P LD). A WDM-PON of the present invention comprises an optical fiber being used for optical transmission to and from a broadband light source (BLS) with a low noise characteristic; first arrayed waveguide Gratings (AWG) for filtering light transmitted from the BLS which is oscillated in a plural mode into a group of n numbers wherein the first AWG have a bandwidth broader than a bandwidth of one mode of the BLS; n F-P LDs outputting wavelength-locked light by light being injected through the first AWG; a circulator bypassing and outputting wavelength-division multiplexed signals which are inputted through the first AWG and the optical fiber; and second AWG de-multiplexing the WDM signals into a group of n numbers wherein the second AWG have a bandwidth broader than the bandwidth of the BLS to be injected, wherein the number n is either the number of output ports of the first or second AWG or the number of channels of the WDM signals.
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申请公布号 |
US8116628(B2) |
申请公布日期 |
2012.02.14 |
申请号 |
US20060087723 |
申请日期 |
2006.07.11 |
申请人 |
LEE CHANG-HEE;CHOI KI-MAN;KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
LEE CHANG-HEE;CHOI KI-MAN |
分类号 |
H04J14/02;H04B10/50 |
主分类号 |
H04J14/02 |
代理机构 |
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地址 |
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