发明名称 |
MULTIPLEXORS WITH A FLAT TOP SPECTRAL CHANNEL SHAPE |
摘要 |
A multiplexing/demultiplexing optical circuit provides a demultiplexed outpu t spectrum of channels having a flat amplitude response without sacrificing optical power. A phased array implementation and a diffraction grating implementation both rely on a first dispersion of the beam to be demultiplexed and subsequent division of the wavelengths into channels. Local inversion is induced within each channel of the dispers ed wavelengths about a channel central wavelength. After the wavelengths are spatially inverted, they are once again provided to a dispersion element or array effectively nullifying the dispersion effects across the channel band to provide output channels having a substantially "flat-tops", while providing good channel separation through global dispersion of all the wavelengths.
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申请公布号 |
CA2266116(C) |
申请公布日期 |
2003.11.11 |
申请号 |
CA19992266116 |
申请日期 |
1999.03.18 |
申请人 |
JDS FITEL INC. |
发明人 |
DUCELLIER, THOMAS;DELISLE, VINCENT |
分类号 |
G02B6/34;(IPC1-7):H04J14/02 |
主分类号 |
G02B6/34 |
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地址 |
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