Colorless tunable dispersion compensator employing a planar lightwave circuit and a deformable mirror
US7174063B2 · kind B2 · utility
7Cited by
0References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2005 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Apr 15, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0825
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A colorless, waveguide-grating-router-based tunable dispersion compensator includes a planar lightwave circuit and a deformable mirror, optically coupled to each other by a plano-cylindrical glass lens such that a fast tuning speed and single-knob dispersion adjustment are obtained. In a further aspect of the present invention, the waveguide-grating router is pinched, symmetrical about its center line, and has a half-wave plate inserted therein to provide polarization independence. In a still further aspect of the present invention, the deformable mirror includes, reflective film attached to opposing piezo-electric actuators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.