Harmonic generating device

Details Harmonic generating device Harmonic generating device

1990-09-28

1994-06-21

Lesmes, George F.

Optical: systems and elements

Optical frequency converter

359328, 359332, 385123, 428372, 428401, 428378, G02B 616

Patent

active

053232615

ABSTRACT:
A fiber-type wavelength converting device comprises a nonlinear optical crystal core; and a glass cladding surrounding the core that produces a second harmonic utilizing Cherenkov radiation. An exit end face of the cladding is flat, and an exit end face of the core has asperities. The exit end face of the core is formed inside with respect to the exit end face of the cladding, and particles may be filled in a recess portion composed of a bottom surface of the exit end face of the core and side surface of an inner wall of the cladding. The cladding has an outer diameter of at least 1 mm to prevent breakage of device upon polishing and grinding. A thin film may be formed on an input end face of the device.

REFERENCES:
patent: 4159863 (1979-07-01), Stewart
patent: 4830447 (1989-05-01), Kamiyama et al.
patent: 4923277 (1990-05-01), Okazaki et al.
patent: 5080462 (1992-01-01), Goto
patent: 5119458 (1992-07-01), Okamoto et al.
patent: 5129029 (1992-07-01), Uemiya et al.
Fujii et al., "Light Scattering Properties", Optics and Laser Technology, vol. pp. 40-44, Feb. 1984.

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