Laser Tuning by spectrally dependent spatial filtering

Details Laser Tuning by spectrally dependent spatial filtering Laser Tuning by spectrally dependent spatial filtering

2005-10-25

2005-10-25

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Tuning

C372S028000

Reexamination Certificate

active

06959024

ABSTRACT:
A laser tuning mechanism which embodies “spectrally dependent spatial filtering” (SDSF) and contemplates two key elements of the tuning mechanism. The first element of the SDSF tuning mechanism is a spectrally dependent beam distortion (i.e. alteration of the amplitude and/or phase profile of the beam) provided by an SDSF tuning element in a laser cavity. The second element of the SDSF tuning mechanism is an intracavity spatial filter which makes the round trip cavity loss a sensitive function of both beam distortion and cavity alignment. Such a laser can be aligned so that a specific beam distortion, which is provided by the SDSF tuning element at a tunable wavelength, is required to obtain minimum round trip cavity loss, thereby providing tunable laser emission. A preferred embodiment of the SDSF tuning mechanism is an external cavity semiconductor laser having a zeroth order acousto-optic tuning element.

REFERENCES:
patent: 3774121 (1973-11-01), Ashkin et al.
patent: 4118675 (1978-10-01), Rahn et al.
patent: 5189676 (1993-02-01), Wysocki et al.
patent: 5255274 (1993-10-01), Wysocki et al.
patent: 5329397 (1994-07-01), Chang
patent: 5384799 (1995-01-01), Osterwalder
patent: 5452314 (1995-09-01), Aronson
patent: 5724373 (1998-03-01), Chang
patent: 5801389 (1998-09-01), Mizutani et al.
patent: 5812567 (1998-09-01), Jeon et al.
patent: 5835512 (1998-11-01), Wada et al.
patent: 5946092 (1999-08-01), DeFreez et al.
patent: 6473234 (2002-10-01), Kuznetsov
patent: 6809865 (2004-10-01), Chen
patent: 2002/0041611 (2002-04-01), May
patent: 2002/0172239 (2002-11-01), McDonald et al.
patent: 2153137 (1985-08-01), None
patent: 2207799 (1989-02-01), None
Coquin et al., “Electronically Tunable External-cavity Semiconductor Laser,” Electronics Letters, vol. 24 (10). Mav 1988. pp. 599-600.
Zorabedian, “Tuning Fidelity of Acoustooptically controlled External Cavity Senziconductor Lasers,” IEEE J. Lightwave Technology, vol. 13(1), Jan. 1995, pp. 62-66.
Koh et al., “Widely-Tunable Hybrid Semiconductor Lasers,” Proc. SPIE, vol. 3631, Jan. 1999, pp. 98-107.
R. Muller et al., “A narrow-band interference filter with photorefractive LiNbO3” Journal of Pysics D: Applied Physics 27 Feb. 14, 1994, No. 2, Bristol, GB, pp 241-246.
Coquin et al., “Electronically Tunable External-Cavity Semiconductor Laser,” Electronics Letters, vol. 24 (10), May 1988, pp. 599-600.
Zorabedian, “Tuning Fidelity of Acoustooptically Controlled External Cavity Semiconductor Lasers,” IEEE J. Lightwave Technology, vol. 13 (1), Jan. 1995, pp. 62-66.
Koh et al., “Widely Tunable Hybrid Semiconductor Lasers,” Proc. SPIE, vol. 3631, Jan. 1999, pp. 98-107.
Taylor et al., “Electronically Tuning of a Dye Laser Using the Acousto-Optic Filter,” Applied Physics Letters, vol. 19 (8), Oct. 1971, pp. 269-271.
Streifer et al., “Analysis of a Dye Laser Tuned by Acousto-Optic Filter,” Applied Physics Letters, vol. 17 (8), Oct. 1970, pp. 335-337.
Hutcheson et al., “Electronic Tuning of a Dye Laser with Simultaneous Multiple-Wavelength Output,” IEEE J. of Quantum Electronics, Apr. 1974, pp. 462-463.

Affiliated with

Also associated with

Rating

Laser Tuning by spectrally dependent spatial filtering does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser Tuning by spectrally dependent spatial filtering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser Tuning by spectrally dependent spatial filtering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3437187