Frequency-agile laser systems

Details Frequency-agile laser systems Frequency-agile laser systems

1989-04-21

1990-01-30

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Tuning

372 12, 372 32, 372105, H01S 310

Patent

active

048978434

ABSTRACT:
A high-speed broadband tunable laser system is disclosed. In one illustrated embodiment, a microprocessor-controlled synchronous tunable laser system is disclosed having multiple tuning elements. The tuning elements can be individual birefringent crystals (such as potassium deuterated hydrogen phosphate) which exhibit electro-optic effects when electric field is applied. Two (or more) of such elements provide coarse and progressively finer control over the wavelength and linewidth. The appropriate voltage values for each element can be stored in a random access memory within a controller and retrieved immediately to obtain a desired wavelength within milliseconds without the scanning delays inherent in mechanical systems.

REFERENCES:
patent: 3868592 (1975-02-01), Yarborough et al.
patent: 3973219 (1976-08-01), Tang et al.
patent: 3983507 (1976-09-01), Tang et al.
patent: 4150342 (1979-04-01), Johnston, Jr. et al.
patent: 4696012 (1987-09-01), Harshaw
Lopasov et al., vol. 28 Optics & Spectroscopy pp. 291-292 (1970).
Williams et al., paper, SICOLS Conference Proceedings (1983).

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