Wavelength selection switch
US7424182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2006 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Dec 25, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3548
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength selection switch includes a diffraction grating that spectrally separates entering light, a focusing optical system that receives the light spectrally separated by the diffraction grating and focuses the light at a predetermined position, a deflection member that is arranged at the predetermined position and includes deflection elements that deflect the light entering through the focusing optical system, a base on which the diffraction grating, the focusing optical system, and the deflection member are mounted, and a deflection member position adjusting member that adjusts a position of the deflection member with respect to one of the diffraction grating and the focusing optical system. The deflection member position adjustment member includes a positioning member that determines a reference position of the deflection member in a direction of spectral separation of the diffraction grating, and a guide member that guides the deflection member in the direction of spectral separation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.