Testing method of wavelength-tunable laser, controlling...

Details Testing method of wavelength-tunable laser, controlling... Testing method of wavelength-tunable laser, controlling...

2011-04-19

2011-04-19

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular beam control device

Tuning

C372S029020

Reexamination Certificate

active

07929581

ABSTRACT:
A testing method of a wavelength-tunable laser having a resonator including wavelength selection portions having wavelength property different from each other includes a first step of controlling the wavelength-tunable laser so as to oscillate at a given wavelength according to an initial setting value, a second step of tuning the wavelength property of the wavelength selection portions and detecting discontinuity point of gain-condition-changing of the wavelength-tunable laser, and a third step of obtaining a stable operating point of the wavelength selection portion according to a limiting point of an oscillation condition at the given wavelength, the limiting point being a point when the discontinuity point is detected.

REFERENCES:
patent: 5642371 (1997-06-01), Tohyama et al.
patent: 2003/0147442 (2003-08-01), Larson et al.
patent: 2004/0008743 (2004-01-01), Nishimura et al.
patent: 2005/0254531 (2005-11-01), Furukawa et al.
patent: 2007/0258494 (2007-11-01), Davies et al.
patent: 2004-047638 (2004-02-01), None
Chinese Office Action dated Mar. 10, 2010, issued in corresponding Chinese Patent Application No. 200810185043.6.

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