Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2007-03-27
2007-03-27
Doan, Jennifer (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S015000
Reexamination Certificate
active
10949378
ABSTRACT:
Beams inputted from a fiber are collected by a lens and are angular-dispersed by a VIPA. The luminous flux from the VIPA is collected on a surface-shape variable mirror by a lens. The surface-shape variable mirror is configured in such a way that a mirror shape can be controlled by a piezo stage and necessary wavelength dispersion can be applied, if necessary. Although the beam group reflected on the surface-shape variable mirror propagates the light path backward, the beam group is inputted to a position different from the outputted position when the beam group enters the VIPA. Therefore, a desired wavelength dispersion can be given to each beam group by performing control of the input position in the VIPA for each wavelength using the surface-shape variable mirror.
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Okada Hideo
Wakana Shin-ichi
Doan Jennifer
Fujitsu Limited
Staas & Halsey , LLP
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