Multiple wavelength optical source and multiplexed light communi

Details Multiple wavelength optical source and multiplexed light communi Multiple wavelength optical source and multiplexed light communi

1988-03-04

1989-06-13

Griffin, Robert L.

Multiplex communications

Wide area network

Packet switching

350172, 372 48, 455606, 455609, 455617, H04B 900

Patent

active

048398845

ABSTRACT:
An external-cavity laser includes low-level, broad spectrum light sources and plural light amplifiers. The external cavity includes a common partially reflecting mirror, and a common diffraction grating which couples the mirror to the light amplifiers. The feedback light is at a different wavelength for each amplifier, so that lasing takes place at plural wavelengths. The output light, while deriving from plural light amplifiers, occurs as a single light beam comprised of plural wavelengths.

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