Light-emitting and light-receiving assembly and method of manufa

Details Light-emitting and light-receiving assembly and method of manufa Light-emitting and light-receiving assembly and method of manufa

1993-07-02

1995-01-10

Ullah, Akm E.

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 88, G02B 600, G02B 636

Patent

active

053814991

ABSTRACT:
A light-emitting or light-receiving assembly is disclosed wherein the optical axis of input or output light to or from an optical fiber may not be shifted or dislocated under various environmental conditions. An optical isolator 3 is fixed on a lens mount 7 carrying a lens 2 and a ferrule 5 holding the optical fiber 12 therein is fixed to a ferrule holder 6 and the lens mount 7. Then, the distance between the lens 2 and an end surface 4 of the optical fiber is predetermined with a mechanical machining accuracy. This is followed by center-to-center adjustment through the use of a unit holder 8 placed around the lens mount 7. Thereafter, the lens mount 7 is fixedly secured to the unit holder 8 which in turn is fixedly secured to the laser mount 9, through the use of the YAG welding technique. An assembly unit 100 containing a semiconductor laser 1, the lens 2, the optical isolator 3 and the ferrule 4 is mounted on a temperature controlling Peltier effect element 10 by solder welding.

REFERENCES:
patent: 4707067 (1987-11-01), Haberland et al.
patent: 5074682 (1991-12-01), Uno et al.
patent: 5127074 (1992-06-01), Watanabe et al.
patent: 5222170 (1993-06-01), Bargar et al.
patent: 5239605 (1993-08-01), Shimada

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