Method and unit for setting a wavelength to a tunable laser

Details Method and unit for setting a wavelength to a tunable laser Method and unit for setting a wavelength to a tunable laser

2007-11-27

2007-11-27

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Tuning

C372S038020

Reexamination Certificate

active

10967294

ABSTRACT:
When a tunable laser is operating at any one of the different wavelengths, wavelength data is sampled and stored in a memory device. In the case where the same operating wavelength as a wavelength hitherto operated needs to be reset to the tunable laser, the wavelength data stored in the memory device is set to the tunable laser. This makes it possible to avoid a shift in wavelength due to age degradation of the tunable laser that selectively outputs any one of light signals of different wavelengths in dependence on the wavelength data set to the tunable laser.

REFERENCES:
patent: 6529531 (2003-03-01), Everage et al.
patent: 6618401 (2003-09-01), Tanimoto et al.
patent: 2001/0019562 (2001-09-01), Kai et al.
patent: 2002/0181519 (2002-12-01), Vilhelmsson et al.
patent: 1130711 (2001-09-01), None
patent: 2001-196690 (2001-07-01), None
patent: 2002-324933 (2002-11-01), None

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