Multichannel cavity laser

Coherent light generators – Particular active media – Semiconductor

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372 23, 372 97, 372 98, 372102, 372 68, H01S 319

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active

051154447

ABSTRACT:
A switchable multichannel external cavity injection laser incorporates a diffraction grating between a linear array of n reflectors and a common reflector to define a set of n optical cavities having different frequency bands. Each of the (n+1) reflectors is provided by the optically distal end of an associated semiconductor laser amplifier whose optically proximal end is arranged to be substantially non-reflective.

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