Hollow waveguide

Details Hollow waveguide Hollow waveguide

1985-03-18

1987-03-24

Sikes, William L.

350 9634, G02B 620

Patent

active

046520830

ABSTRACT:
A flexible hollow waveguide has an optically smooth, rectangular cross section internal channel, in which reflecting metal is overcoated with a ThF.sub.4 or ZnSe dielectric approximately one-half of the quarter wave thickness. CO.sub.2 laser propagation is promoted for guide curvatures down to about 5 cm radius of curvature.

REFERENCES:
patent: 3436141 (1969-04-01), Comte
Losses and Phase Constant Changes Caused by Bends in the General Class of Hollow Waveguides for the Infrared--Migayi et al., Applied Optics, Dec. 15, 1981, vol. 20, No. 24, pp. 4221-4226.
Wave Propagation and Attenuation in the General Class of Circular Hollow Waveguides with Uniform Curvature--Miyagi, et al., Transactions of the IEEE, vol. MTT-32, No. 5, May 1984, pp. 513-521.
Optical Waveguides and Fiber Sensors--Miyagi, et al., Technical Digest of Papers, CLEO '83, pp. 210-211.
Theory of Bragg Fiber*--Yeh, et al., J. Opt. Soc. Am., vol. 68, No. 9, Sep. 1978, pp. 1196-1201.
Transmission Characteristics of a Dielectric-Tube Waveguide with an Outer Higher-Index Cladding--Miyagi, et al., Electronics Letters, May 12, 1977, vol. 13, No. 10, pp. 274-275.
Design Theory of Dielectric-Coated Circular Metallic Waveguides for Infrared Transmission--Miyagi, et al., Journal of Lightwave Technology, vol. LT-2, No. 2, Apr. 1984, pp. 116-126.
Transmission Characteristics of Dielectric-Coated Metallic Waveguide for Infrared Transmission: Slab Waveguide Model--Migayi, et al., IEEE Journal of Quantum Electronics, vol. QE-19, No. 2, Feb. 1983, pp. 136-145.
Fabrication of Germanium-Coated Nickel Hollow Waveguides for Infrared Transmission--Migayi, et al., Appl. Phys. Lett. 43 (5) Sep. 1, 1983, pp. 430-432.
Waveguide Loss Evaluation by the Ray-Optics Method--Miyagi, et al., J. Opt. Soc. Am., vol. 73, No. 4, Apr. 1983, pp. 486-489.
Low-Loss Optical Transmission through Bent Hollow Metal Waveguides--Garmire, et al., Applied Physics Letters, vol. 31, No. 2, Jul. 15, 1977, pp. 92-94.
Transverse Electrodeless RF Discharge Excitation of High-Pressure Laser Gas Mixtures--Christensen, et al., IEEE Journal of Quantum Electronics, vol. QE-16, No. 9, Sep. 1980, pp. 949-954.
High-Repetition Rate 10-atm rf-Excited CO.sub.2 Waveguide Laser--Lovold, et al., Technical Digest of Papers, p. 88.
High-Power Military CO.sub.2 Waveguide Laser--Whitebrook, et al., Technical Digest of Papers, p. 146.
A Transversely rf-Excited CO.sub.2 Waveguide Laser--Lachambre, et al., Appl. Phys. Lett., vol. 32, No. 10, May 15, 1978, pp. 652-653.
Compact CO.sub.2 Laser with Transverse rf Excitation--H. Hugel et al., Technical Digest of Papers, pp. 90-91.
Waveguides for High Power CO.sub.2 Lasers--T. McMahon, et al., Society of Manufacturing Engineers Technical Paper, MR76-869.
Fiber and Integrated Optics: Waveguides in the Infrared--E. Garmire, Optical Spectra, Apr. 1979, pp. 50-54.

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