Coupling modulation in travelling wave resonator

Details Coupling modulation in travelling wave resonator Coupling modulation in travelling wave resonator

1976-09-24

1978-10-10

Moskowitz, Nelson

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

356106LR, 250199, G02F 122

Patent

active

041199308

ABSTRACT:
A wideband optical ring modulator is disclosed. A ring resonator containing a synchronous travelling wave electro-optic modulator is disposed external to a laser cavity. The invention provides a compact lightweight optical modulator which combines the power enhancement capabilities of a resonant cavity with the wideband capabilities of a travelling wave coupling modulator. The present invention is especially useful for, although not limited to, ultra-wideband infrared laser communication systems utilizing PCM techniques.

REFERENCES:
patent: 3550039 (1970-12-01), Herriott
patent: 3617129 (1971-11-01), Skolnick
patent: 3625590 (1971-12-01), Habegger
patent: 3841758 (1974-10-01), Gievers
patent: 3885874 (1975-05-01), Haas et al.
patent: 3994566 (1976-11-01), Lotspeich et al.
patent: 4053763 (1977-10-01), Harney
Henderson et al., "Multi-Gigahertz Modulation Concepts for CO.sub.2 Laser Communications," 9/26/76, pp. 150-151, EASCON 176 record, IEEE.

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