Spatial and polarization characteristics of radiation from a cw neodymium-doped garnet laser with a nonplanar ring resonator

Journal Article · Sun Nov 01 04:00:00 EST 1981 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1981v011n11ABEH008618· OSTI ID:5610315

Golyaev, Y; Evtyukhov, K; Kaptsov, L; Smyshlyaev, S

A theoretical analysis is made of the normal polarization modes and of the effect of field rotation outside and inside the resonator of a cw neodymium-doped garnet laser with a nonplanar ring resonator. It is found that, as a result of induced birefringence in the active element, the polarization of the radiation is generally elliptic and only tends to circular when the degree of nonplaneness of the resonator is fairly high. The radiation field is rotated both outside and inside the resonator and the angle of rotation is the sum of two angles defined by the degree of nonplaneness of the resonator and the focal length of a thermal lens in the active element. The transverse modes have a degree of axial symmetry which is a multiple of the total angle of rotation of the field in the resonator. Experimental results confirm these effects.

• Research Organization: M. V. Lomonosov State University, Moscow
• OSTI ID: 5610315
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 11:11; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
GARNETS
LASER RADIATION
LASERS
MINERALS
NEODYMIUM LASERS
OXYGEN COMPOUNDS
POLARIZATION
RADIATIONS
RESONATORS
RINGS
SILICATES
SILICON COMPOUNDS
SOLID STATE LASERS