Coherent light generators – Particular component circuitry – Optical pumping
Patent
1984-12-18
1988-10-18
Sikes, William L.
Coherent light generators
Particular component circuitry
Optical pumping
350 9614, 372 44, 357 30, G02B 610
Patent
active
047782358
ABSTRACT:
An optical switch having a plurality of channel waveguides. At least one of which is a gain-guided channel waveguide. In operation, a light beam incident on one end face of the optical switch through one of the channel waveguides exits from the switch through one or another of the channel waveguides in accordance with current injected into the gain-guided channel waveguide. As a result, a compact low-voltage optical switch is possible. The channel waveguides may run parallel to each other, or may come together in a center portion in a X-shape, separated by a relatively small distance, or as a third alternative may be formed in a Y-shape, with a small distance separating the branches of said Y-shape.
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NEC Corporation
Sikes William L.
Wise Robert E.
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