Optical isolator array device

Details Optical isolator array device Optical isolator array device

1996-12-03

1998-01-06

Ngo, John

Optical waveguides

Polarization without modulation

385 65, 385 73, 385 89, G02B 638

Patent

active

057063710

ABSTRACT:
An optical isolator array is presented. The array has a substrate with parallel grooves and a groove perpendicular to the parallel grooves to separate them. First sleeves each holding an end section of a first optical fiber and a first collimating element are fixed in the parallel grooves on one side of the perpendicular groove. Second sleeves each holding an end section of a second optical fiber and a second collimating element are fixed in the parallel grooves on the other side of the perpendicular groove. An optical isolator core subassembly having first and second strips of birefringent polarizer material, and a strip of Faraday rotator material between the first and second strips of birefringent polarizer materials is fixed in the perpendicular groove. Each optical isolator is formed by a first sleeve, first collimating lens, the optical isolator core subassembly, the second collimating lens and the second sleeve in a parallel groove between a first optical fiber and a second optical fiber having end sections held respectively in the first and second sleeves.

REFERENCES:
patent: 4836638 (1989-06-01), Finzel
patent: 5481629 (1996-01-01), Tabuchi
patent: 5542013 (1996-07-01), Kaplow et al.
patent: 5611006 (1997-03-01), Tabuchi

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