Semiconductor laser module

Details Semiconductor laser module Semiconductor laser module

1998-03-04

2000-01-11

Ngo, Hung N.

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 34, G02B 636

Patent

active

060128542

ABSTRACT:
The invention provides a semiconductor laser module that enhances the coupling efficiency of the semiconductor laser with an optical fiber, and reduces the dispersion of the coupling efficiency due to a fitting error of the semiconductor laser. The structure of the semiconductor laser module according to the invention is such that the outgoing point of beams from the semiconductor laser is dislocated by a distance r.sub.1 from the optical axis of the optical fiber, so that the laser beams fallen on the end face of the core with a refractive index n.sub.1 can penetrate in the direction parallel to the optical axis of the core. Here, the distance r.sub.1 meets the following inequality:

REFERENCES:
patent: 4790618 (1988-12-01), Abe
patent: 5087109 (1992-02-01), Ishizuka et al.
patent: 5353294 (1994-10-01), Shigeno
patent: 5841923 (1998-11-01), Kyoya

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