Gradient index rod collimation lens devices for enhancing optica

Details Gradient index rod collimation lens devices for enhancing optica Gradient index rod collimation lens devices for enhancing optica

1994-12-14

1996-10-22

Ullah, Akm E.

Optical waveguides

With optical coupler

Input/output coupler

385 25, 385 26, G02B 600, G02B 636, G02B 632, G02B 626

Patent

active

055685781

ABSTRACT:
A novel array of optical fiber beams collimator device, includes as novel mponents thereof an array of single beam collimator units. A housing is provided with a corresponding array of co-parallel lens bores between opposite sides of the housing. Each unit of the array of single beam collimator units is formed from a gradient index glass, rod-type, collimation lens disposed in the corresponding lens bore with a reinforced terminal end section of an optical fiber attached by its end face to the end face of the lens at one of the sides of the housing. The lenses of the array of units all have a common length dimension of one-quarter pitch plus a predetermined increment of length chosen for coupling maximum power through respective fiber optic lines. The terminal end sections of optical fiber attached to associated lenses of the array have their respective longitudinal axes in individual predetermined lateral spatial relationship to the central axes of their associated lens to produce couplement with generally collimated beams at the other side of the housing which are coparallel with the aforementioned axes.

REFERENCES:
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patent: 4258976 (1981-03-01), Scott et al.
patent: 4872737 (1989-10-01), Fukahori et al.
patent: 4943137 (1990-07-01), Speer
patent: 5157745 (1992-10-01), Ames
patent: 5271076 (1993-12-01), Ames
patent: 5371814 (1994-12-01), Ames et al.

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