Repetitive pulse YAG: Nd/sup 3 +/ laser with an unstable cavity and a passive LiF-crystal shutter with F/sup -//sub 2/ color centers

Journal Article · Sun Dec 01 04:00:00 EST 1985 · J. Appl. Spectrosc. (Engl. Transl.); (United States)

OSTI ID:6009702

Rakush, V V; Stavrov, A A

In this article, the characteristic features of the lasing of a YAG:Nd/sup 3 +/ laser with an unstable cavity and a LiF:F/sup -//sub 2/ passive shutter are investigated. In the experiment a diffuse reflector consisting of MS-20 glass is used. The authors site a substantial practical interest in repetitive pulse lasers as the reason for the investigation. It is noted that since the divergence of the radiation from a laser with an unstable cavity and an electrooptical shutter was equal to about 1 mrad in this experiment, the use of a passive shutter made it possible to decrease the divergence of the radiation approximately by a factor of two. The smaller divergence of the generated radiation is obtained together with a bell-shaped time-dependent single pulse and enables operation with high pulse repetition frequencies without appreciable power loss. This indicates the good prospects for the use of passive shutters based on LiF with F/sup -//sub 2/ color centers in repetitive pulse YAG:Nd/sup 3 +/ lasers with an unstable cavity.

• OSTI ID: 6009702
• Journal Information: J. Appl. Spectrosc. (Engl. Transl.); (United States), Journal Name: J. Appl. Spectrosc. (Engl. Transl.); (United States) Vol. 42:6; ISSN JASYA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALKALI METAL COMPOUNDS
COLOR CENTERS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
DESIGN
ENERGY LOSSES
FLUORIDES
FLUORINE COMPOUNDS
GLASS
HALIDES
HALOGEN COMPOUNDS
LASER CAVITIES
LASER MATERIALS
LASERS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
LOSSES
MATERIALS
NEODYMIUM LASERS
OPTICAL SYSTEMS
POINT DEFECTS
POWER LOSSES
PULSES
REFLECTION
SOLID STATE LASERS
VACANCIES