Wavelength monitoring apparatus

Details Wavelength monitoring apparatus Wavelength monitoring apparatus

2007-11-27

2007-11-27

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Optical output stabilization

C372S105000, C356S365000

Reexamination Certificate

active

10477018

ABSTRACT:
An optical signal emitted from a semiconductor laser is converged by a lens and then received by a single uniaxial birefringent crystal having a C axis that is inclined at an angle other than 90 degrees against a laser optical axis to output an optical signal having a polarized wave component of constant intensity corresponding to the wavelength of the optical signal regardless of temperature changes. The optical signal has an ordinary ray vibrating in a direction perpendicular to a plane including both the C axis and the laser optical axis, and an extraordinary ray vibrating in a direction perpendicular to both the ordinary ray and the laser optical axis. A first main photo detector detects the intensity of a p-polarized component of the optical signal that has passed through a polarizer and a second photo detector directly receives the optical signal converged by the lens.

REFERENCES:
patent: 3719414 (1973-03-01), Wentz
patent: 4998256 (1991-03-01), Ohshima et al.
patent: 5107512 (1992-04-01), Shibutani
patent: 5841536 (1998-11-01), Dimmick
patent: 5930038 (1999-07-01), Swan
patent: 6137619 (2000-10-01), Chen et al.
patent: 6486999 (2002-11-01), Ackerman et al.
patent: 6567437 (2003-05-01), Imaki et al.
patent: 0 415 407 (1990-08-01), None
patent: 0 875 743 (1998-11-01), None
patent: 4-94230 (1992-03-01), None
patent: 8-160324 (1996-06-01), None
patent: 9-218432 (1997-08-01), None
patent: 9-257567 (1997-10-01), None
Juergen Mentel, et al.: Applied Optics, (Aug. 20, 1992), vol. 31, No. 24, pp. 5022-5029.

Affiliated with

Also associated with

Rating

Wavelength monitoring apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wavelength monitoring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wavelength monitoring apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3827632