Athermalization and pressure desensitization of diffraction grating based WDM devices
US6621958B1 · kind B1 · utility
6Cited by
8References
44Claims
0Family size
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Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jan 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0217
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.