Wavelength stabilization module having light-receiving...

Details Wavelength stabilization module having light-receiving... Wavelength stabilization module having light-receiving...

2006-03-14

2006-03-14

Vannucci, James (Department: 2828)

Coherent light generators

Particular beam control device

Optical output stabilization

C372S020000

Reexamination Certificate

active

07012939

ABSTRACT:
A wavelength stabilization module having a light-receiving element array and a method of manufacturing the same are disclosed. The wavelength stabilization module having a laser diode which irradiates a laser beam at the front side and the rear side thereof comprises a collimator for paralleling the laser beam irradiated at the rear side; a beam splitter for splitting the laser beam passed through the collimator into the two directional laser beams; a light-receiving element for receiving one of the split laser beams; a filter for transmitting a specific wavelength of the other of the split laser beams; a light-receiving element array for receiving the laser beam passed through the filter; and a controller for controlling the output wavelength of the laser diode by using the signals output from the light-receiving element and the light-receiving element array, and the filter and the light-receiving element array are tilted at a predetermined angle with respect to the laser beam and lock the wavelength by using an incident angle dependency of the laser beam passed through the filter.

REFERENCES:
patent: 5359434 (1994-10-01), Nakao et al.
patent: 6275317 (2001-08-01), Doerr et al.
patent: 6560253 (2003-05-01), Munks et al.
patent: 2001-11932 (2001-02-01), None
patent: 2001-27330 (2001-04-01), None
K. Tatsuno, et al.;“50 Ghz spacing, multi-wavelength tunable locker integrated in a transmitter module with a monolithic-modulator and a DFB-laser”; TuB5-1 to Tub5-3.
K.J. Park, et al.;“A Multi-wavelength Locker for WDM System”; WE4-1/73 to WE4-3/75.

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