Athermalization and pressure desensitization of diffraction grating based WDM devices
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United States of America Patent
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Sep 16, 2003
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N/A
app pub date -
Nov 28, 2000
filing date -
Jun 2, 2000
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Abstract
A wavelength division multiplexer/demultiplexer (WDM) for use in an optical network has a structure for holding at least one optical component. A diffraction grating assembly having a substrate is held in relation to the at least one optical component by the structure. A lens assembly having a focal length is held in relation to the at least one optical component. The grating assembly has an angular dispersion that changes with temperature and the product of the focal length and angular dispersion remains constant over temperature.
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