Etalon arrangement

Details Etalon arrangement Etalon arrangement

1997-04-30

1998-10-27

Scott, Jr., Leon

Coherent light generators

Particular resonant cavity

Specified cavity component

372 32, 372 33, H01S 308

Patent

active

058286896

ABSTRACT:
A control system for an etalon arrangement 4, in an optical transmission system involves applying a dither to a laser 1 upstream of the arrangement, monitoring the output of the arrangement, and using a control means 3 to lock the laser frequency to the etalon arrangement response, or vice versa. The control means operates on the basis of a ratio of derivatives of the monitored output with respect to wavelength, to enable locking to a point on the response curve, independent of power variations.

REFERENCES:
patent: 5173908 (1992-12-01), Negus et al.
patent: 5559816 (1996-09-01), Basting et al.

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