Fabrication of difraction gratings for optical signal devices and optical signal devices containing the same
US6023545A · kind A · utility
13Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Feb 8, 2000 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12159
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Method of fabricating a wavelength filter on a substrate in which a phase mask having corrugations is placed over a polymeric substrate composed of at least two comonomers having different indexes of refraction and passing light through the phase mask to form light into two beams corresponding to different diffraction orders to form refractive gratings capable of reflecting light of a selective wavelength. Optical signal devices employing gratings fabricated in this manner are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.