Coherent light generators – Particular beam control device – Optical output stabilization
Patent
1995-08-16
1998-01-06
Bovernick, Rodney B.
Coherent light generators
Particular beam control device
Optical output stabilization
372 34, 372 38, H01S 313
Patent
active
057063010
ABSTRACT:
A laser wavelength control system (20) stabilizes laser output wavelength. The control system includes a reflector/filter device (40) upon which laser radiation is incident for yielding both a filtered-transmitted signal (FS) and a reflected signal (RS). A controller (45) uses both the filtered-transmitted signal (FS) and the reflected signal (RS) to generate a control signal (CS). The control signal is utilized by a temperature converter (100) to adjust laser output wavelength of the laser (22). In one embodiment, the reflector/filter device is an optical fiber grating. The wavelength control system facilitates construction of a modular optical multichannel transmission system (200).
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Bovernick Rodney B.
Telefonaktiebolaget L M Ericsson
Wise Robert E.
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