Rotating optical frequency chirp device

Details Rotating optical frequency chirp device Rotating optical frequency chirp device

1976-10-06

1978-05-09

Rolinec, Rudolph V.

Electrical transmission or interconnection systems

Anti-induction or coupling to other systems

356106LR, H03F 700

Patent

active

040888983

ABSTRACT:
A system for generating pulses of laser radiation which vary in frequency with time to achieve a "chirp" or frequency sweep. In a preferred embodiment, a variable-thickness, rapidly rotating disk of optically-dense material is placed in the optical loop of an injection-locked oscillator. Rotation of the disk in the optical loop of the injection-locked oscillator varies the loop optical path length, resulting in a frequency chirp. By appropriately choosing the shape of the optically dense material, a desired linear output chirp may be obtained.

REFERENCES:
patent: 3611182 (1971-10-01), Treacy

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