Graded refractive index optical waveguide using a fluid medium

Details Graded refractive index optical waveguide using a fluid medium Graded refractive index optical waveguide using a fluid medium

1997-01-23

1998-09-08

Lee, John D.

Optical waveguides

Optical fiber waveguide with cladding

Utilizing nonsolid core or cladding

385124, G02B 618, G02B 620

Patent

active

058057544

ABSTRACT:
An optical waveguide and method for guiding a laser beam through a channel member having a fluid medium disposed therein. A refractive index gradient is created in the fluid medium which causes the fluid medium to guide the laser beam through the channel member. The refractive index gradient results when a temperature index gradient is created in the fluid medium by heating the channel member wall. The channel member can be externally heated using a separate heating source or the channel member can be heated from the inside by the laser beam itself. A fluid pump is used to create a fluid flow in the fluid medium in order to maintain the temperature and refractive index gradients in the fluid medium.

REFERENCES:
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patent: 3441337 (1969-04-01), Miller
patent: 3841731 (1974-10-01), Midwinter
patent: 4185889 (1980-01-01), Marie et al.
patent: 4685766 (1987-08-01), Nishimura et al.
Saleh, B.E.A., and M.C. Teich, Fundamentals of Photonics, John Wiley &

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