Switched diffraction grating

Details Switched diffraction grating Switched diffraction grating

1977-10-03

1979-08-28

Sikes, William L.

Oscillators

Molecular or particle resonant type

331 945M, 331 945Q, 350354, H01S 311

Patent

active

041662547

ABSTRACT:
A switchable diffraction grating may be formed from an array of color centers in an alkali halide crystal. These gratings will diffract only when the color centers are excited by an external light source, so that they may be switched on and off. The gratings may be used to form optical switches, pulse shaping devices, and Q-switched lasers.

REFERENCES:
patent: 3578845 (1971-05-01), Brooks et al.
patent: 3991386 (1976-11-01), Bjorklund et al.
patent: 4040718 (1977-08-01), Bjorklund et al.
patent: 4115747 (1978-09-01), Sato et al.
Motoki, Low Voltage Optical Modulator Using Electrooptically Induced Phase Gratings, Applied Optics, vol. 12, No. 7 (Jul. 1973), pp. 1472-1476.
Wilson et al, Nanosecond Baseband Optical-Diffraction Modulator, Electronics Letters, vol. 7, No. 10 (May 1971), pp. 267-269.
Siegman, Proposed Picosecond Excited-State Measurement Method Using a Tunable-Laser-Induced Grating, Appl. Phys. Lett., vol. 30, No. 1 (Jan. 1, 1977), pp. 21-23.

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