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.
| Original language | American English |
|---|---|
| Patent number | US2006198577 |
| IPC | G02B 6/ 26 A I |
| Priority date | 4/03/05 |
| State | Published - 7 Sep 2006 |