Method and system for pass band flattening and broadening of transmission spectra using grating based optical devices
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United States of America Patent
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Issued Date -
Jun 26, 2003
app pub date -
Dec 6, 2002
filing date -
Dec 7, 2001
priority date (Note) -
Abandoned
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Abstract
A device for expanding an operable wavelength band of an optical component is disclosed. The device has an optical grating configured to receive a wavelength division multiplexed optical signal. The optical grating is configured to separate the optical signal into two wavelength bands separated by a prescribed wavelength difference. The device has a focusing lens system to focus the two wavelength bands onto a receiving surface. The two wavelength bands are separated on the receiving surface by the prescribed wavelength difference in order to expand the wavelength band of the WDM signal.
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