Optical resonator with distributed feedback. [Theoretical analysis]

Journal Article · Sat Feb 01 04:00:00 EST 1975 · Sov. Tech. Phys. Lett. (Engl. Transl.); (United States)

OSTI ID:7353228

Kazarinov, R F; Sokolova, Z N; Suris, R A

Much interest has been evinced recently in the interaction of light with periodic inhomogeneities of a refractive index in connection with the possibility of constructing lasers with distributed feedback. Lasers have been described with distributed feedback based on bulk inhomogeneity, and it has been proposed to use, for this purpose, surface inhomogeneities of the waveguide layer--diffraction gratings (DG), in the form of a corrugated boundary of the waveguide. In addition to providing the distributed feedback, such a diffraction grating makes it possible to decrease, by several orders of magnitude, the diffraction divergence inherent in film lasers, since the radiation is not emitted by a thin waveguide layer, but by the entire surface of the diffraction grating. Experiments have confirmed these conclusions. The possibility of combining small radiation divergence and single-mode generation in a laser with a diffraction grating is discussed.

• Research Organization: Ioffe Inst. of Physics, Leningrad
• OSTI ID: 7353228
• Journal Information: Sov. Tech. Phys. Lett. (Engl. Transl.); (United States), Journal Name: Sov. Tech. Phys. Lett. (Engl. Transl.); (United States) Vol. 1:2; ISSN STPLD
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
COHERENT SCATTERING
DAMPING
DIFFRACTION
DISPERSION RELATIONS
ELECTROMAGNETIC FIELDS
EQUATIONS
FEEDBACK
LASERS
QUALITY FACTOR
SCATTERING
WAVEGUIDES