Device and process for mode-locking a laser

Details Device and process for mode-locking a laser Device and process for mode-locking a laser

2005-08-09

2005-08-09

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Mode locking

C372S021000

Reexamination Certificate

active

06928090

ABSTRACT:
The invention relates to a device for a laser blocked-mode, especially for a pulsed laser, comprising a cavity resonator (20) which is defined by a first mirror (1) and a second mirror (8), and fitted with an amplifying active laser medium (5) for the amplification of a beam of laser radiation of a fundamental frequency (ω1) and a solid, non-linear optic means (10) comprising at least said second mirror (8) for reversible conversion of the radiation of the fundamental frequency (ω1) into radiation of a harmonic frequency (ω2) whereby said non-linear optic means (10) has a reflection factor which increases with the intensity of the radiation of a fundamental frequency. The invention is characterized in that said device also comprises a solid intensity limiter (4) in the cavity resonator (20), whereby the transmission factor of the laser radiation decreases with the intensity of said radiation. The invention also relates to a method for a laser blocked-mode, especially for a pulsed laser, using said device.

REFERENCES:
patent: 4829528 (1989-05-01), Band et al.
patent: 4914658 (1990-04-01), Stankov et al.
patent: 5257274 (1993-10-01), Barrett et al.
patent: 5436920 (1995-07-01), Minemoto et al.
patent: 5661594 (1997-08-01), Rhoads et al.
patent: 5675596 (1997-10-01), Kong et al.
patent: 5909456 (1999-06-01), Oka
patent: 5986828 (1999-11-01), Wood et al.
patent: 6144679 (2000-11-01), Herman et al.
patent: 6252892 (2001-06-01), Jiang et al.
patent: 6275512 (2001-08-01), Fermann
patent: 6546027 (2003-04-01), Khaydarov
patent: 2003/0172736 (2003-09-01), Blouin et al.
patent: 2004/0021063 (2004-02-01), Dultz et al.
patent: 0 951 111 (1999-10-01), None
Buchvarov et al., “Nonlinear doubling mode-locking of feedback controlled pulsed Nd:YAG :laser,”Optics Communications. vol. 118, No. 1/2, pp. 51-54 (Jul. 1995).
Del Corno et al., “Shortening of pulses from an active passive mode-locked Nd:Yag laser through two photon absorption in GaAs,”Proceedings of the Conference on Lasers and Electro-optics(CLEO), vol. 7, pp. 120-122 (May 1990).
Stankov, K.A., “Negative feedback using a nonlinear mirro for the generation of a long train of short light pulses,”Appl. Phys. B: Photo-physics and Laser Chemistry, vol. B52, No. 3, pp. 158-162 (1991).
Keller, U., “Self-starting femtosecond mode-locked Nd:glass laser that uses intracavity saturable absorbers,”Optics Letters, vol. 18, No. 13, pp. 1077-1079 (Jul. 1993).
Buchvarov et al., “Pulse shortening in an actively mode-locked laser with a frequency-doubling nonlinear mirror,”Optics Communications, vol. 83, No. 3/4, pp. 241-245 (Jun. 1991).
Martinez et al., “Deterministic passive mode locking of solid-state lasers,”Appl. Phys. Lett., vol. 39, No. 11, pp. 875-877 (Dec. 1981).

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