Coherent light generators – Particular beam control device – Optical output stabilization
Patent
1990-03-27
1991-06-18
Gonzalez, Frank
Coherent light generators
Particular beam control device
Optical output stabilization
372 29, 372 34, H01S 3133
Patent
active
050254499
ABSTRACT:
Disclosed is an optical pumping-type solid-state laser apparatus in which a semiconductor laser device is used as a light source for optical pumping. The solid-state laser apparatus includes first and second photodetectors. The former detects the amount of light emitted from the semiconductor laser device, and the latter detects the amount of laser light transmitted through a filter plate which has the same light-absorbance characteristics as that of the solid-state laser. In accordance with the detected results, a driving circuit drives the semiconductor laser device to obtain a laser beam with an appropriate output level and a temperature regulator regulates the temperature of the semiconductor laser device so that the wavelength of the laser light to be emitted therefrom is accurately adjusted to be the same as that of the light to be efficiently absorbed by the solid-state laser. The laser beam with the accurately adjusted wavelength is used for optically pumping the solid-state laser.
REFERENCES:
patent: 4309671 (1982-01-01), Malyon
patent: 4450565 (1984-05-01), Copeland
patent: 4719631 (1988-01-01), Conaway
patent: 4829533 (1989-05-01), Hallberg et al.
Josef Berger et al., "High Power, High Efficient Neodymium;yttrium Aluminum Garnet Laser End Pumped by a Laser Diode Array", Appl. Phys. Lett. 51, 19 Oct. 1987, pp. 1212-1214.
Fields et al., "Highly Efficient Nd;YVO.sub.4 Diode-Laser End-Pumped Laser," Appl. Phys. Lett. 51, 7 Dec. 1987, pp. 1885-1886.
Article from Laser Focus/Electro-Optics, May 1988, p. 28.
Yamamoto Osamu
Yoshida Toshihiko
Gonzalez Frank
Hansen Galen J.
Sharp Kabushiki Kaisha
LandOfFree
Optical pumping-type solid-state laser apparatus with a semicond does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical pumping-type solid-state laser apparatus with a semicond, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pumping-type solid-state laser apparatus with a semicond will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-149836