Wavelength selection switch

Optical waveguides – With optical coupler – Plural

Reexamination Certificate

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Details

C359S572000, C356S326000

Reexamination Certificate

active

07424182

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.

REFERENCES:
patent: 6657770 (2003-12-01), Marom et al.
patent: 2004/0136074 (2004-07-01), Ford et al.
patent: 2004/0218177 (2004-11-01), MacKinnon et al.
patent: 2005-091910 (2005-04-01), None

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