Tunable optical device

Details Tunable optical device Tunable optical device

1978-03-03

1980-06-17

Sikes, William L.

Oscillators

Molecular or particle resonant type

350162R, H01S 310

Patent

active

042086370

ABSTRACT:
A tunable optical device is produced by forming in the surface of a substrate a fan-shaped grating of continuously varying period by means of a holographic technique using a photoresist and twisted mirrors, coating the surface of the substrate containing the formed grating with a polyurethane film and diffusing a dye in the prescribed region of the resultant polyurethane film coated on the substrate. In the device of the construction described above, irradiation of the region having the fan-shaped grating with a laser light generates laser light beams whose wavelength is variable with the position at which the laser light impinges upon the region of the grating.

REFERENCES:
patent: 3675157 (1972-07-01), Kaminow et al.
patent: 3791737 (1974-02-01), Johansson
patent: 3868589 (1975-02-01), Wang
patent: 3898585 (1975-08-01), Heidrich et al.
patent: 3906393 (1975-09-01), Fletcher
patent: 3970959 (1976-07-01), Wang et al.
patent: 3972008 (1976-07-01), Fletcher
patent: 4094575 (1978-06-01), Kellie
Kogelnik et al., Stimulated Emission in a Periodic Structure, Appl. Phys. Lett., vol. 18. No. 4 (Feb. 15, 1971) pp. 152-154.
Schinke et al., Thin-film Distributed-Feedback Laser Fabricated by Ion Milling, Appl. Phys. Lett., vol. 21, No. 10 (Nov. 15, 1972) pp. 494-496.

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