Wavelength selective optical cavity including holographic filter

Details Wavelength selective optical cavity including holographic filter Wavelength selective optical cavity including holographic filter

1984-08-30

1988-07-26

Sikes, William L.

Multiplex communications

Wide area network

Packet switching

350 9616, 350 9619, 350 36, 350 37, 350311, 370 1, 370 3, 455600, 455602, G02B 626, H04B 900, G02F 100

Patent

active

047595965

ABSTRACT:
An optical resonant cavity adapted to receive, as an input from a transmission trunk line, a group of optical signals distributed in wavelength over a predetermined band and to provide, as an output, a narrower band of the optical signals. The wavelength selective nature of the cavity stems from a modification of its resonant modes with periodic structures that are interferometrically formed as alternating layers of high and low index of refraction in photopolymeric material at its opposite ends and operate to suppress resonant modes at wavelengths outside of the narrow band desired as an output.

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patent: 4592043 (1986-05-01), Williams
Leite et al., "Holographic Coupler for Fibre Optics Communication", SPIE vol. 213, Pro. Soc. Photo-Opt. Eng. 1979, pp. 9-17.
Soares, "Holographic Coupler for Fiber Optics", Optical Engineering, Sep./Oct. 1981, vol. 20, No. 5, pp. 740-745.
Sincerbox, "Formation of Optical Elements by Holography", IBM Tech. Discl. Bull. vol. 10, No. 3, Aug. 1967, pp. 267-268.

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