Methods and devices for monitoring the wavelength and power...

Details Methods and devices for monitoring the wavelength and power... Methods and devices for monitoring the wavelength and power...

2007-05-01

2007-05-01

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Optical output stabilization

C372S020000

Reexamination Certificate

active

10700306

ABSTRACT:
A wavelength locker. The wavelength locker can be mounted within an optical transceiver on a submount with the laser diode. The wavelength locker utilizes light emitted by the back facet of the laser to monitor the wavelength and power of the laser. The light is separated into two portions, at least one of which is passed through a filter to shift the wavelength thereof. Separate monitor diodes or photosensitive areas of a single monitor diode are used to measure the output of each portion of light. The outputs are analyzed to determine the wavelength of the light emitted from the back facet as well as the power of the laser and a controller can then change the temperature of the laser or otherwise adjust the wavelength of the laser when the wavelength locker detects that the wavelength of the laser is changing.

REFERENCES:
patent: 3725817 (1973-04-01), Nolan
patent: 4583227 (1986-04-01), Kirkby
patent: 4998256 (1991-03-01), Ohshima et al.
patent: 5319435 (1994-06-01), Melle et al.
patent: 5469265 (1995-11-01), Measures et al.
patent: 5812581 (1998-09-01), Cox
patent: 5963686 (1999-10-01), Zheng et al.
patent: 6122301 (2000-09-01), Tei et al.
patent: 6289028 (2001-09-01), Munks et al.
patent: 6366592 (2002-04-01), Flanders
patent: 6587214 (2003-07-01), Munks
patent: 2002/0001321 (2002-01-01), Perry
patent: 2002/0141463 (2002-10-01), Bruun-Larsen et al.

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