Distributed feedback laser

Details Distributed feedback laser Distributed feedback laser

1988-06-24

1989-09-12

Scott, Jr., Leon

Coherent light generators

Particular resonant cavity

Specified cavity component

372 96, 372 54, 372102, 372 70, H01S 308

Patent

active

048667307

ABSTRACT:
A laser with distributed feedback utilizes an active laser medium, especiy a dye solution contained in a cell, excited by a pump radiation beam that passes through an optical grating or like device, and an optical imaging system arranged between the optical device and the laser medium; the imaging system, in combination with the optical device, forms a striped pump radiation pattern in the laser medium. The optical imaging system contains a microscope lens in retro position, or another scale reducing or demagnifying lens system, and may optionally, include a variable-focus lens for altering the imaging scale and, therefore, the wavelength of the laser emission.

REFERENCES:
patent: 4641312 (1987-02-01), Schafer et al.

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