Semiconductor laser module

Details Semiconductor laser module Semiconductor laser module

1996-09-10

1998-04-28

Ngo, John

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 93, 385 33, 385 34, 385 35, 385 43, G02B 636

Patent

active

057456259

ABSTRACT:
A semiconductor laser module comprising a lens system having first and second lenses for coupling a beam emitted from a semiconductor laser with a core expanded fiber having a single-mode fiber end whose core diameter is expanded. The core expanded fiber is set so as to have a core expansion coefficient of 1.3 or more and an absolute value of change rate of mode field diameter smaller than 6.0.times.10.sup.-4 .mu.m.sup.-1.

REFERENCES:
patent: 4842360 (1989-06-01), Caro et al.
patent: 5278929 (1994-01-01), Tanisawa et al.
M. Saruwatari et al; "Semiconductor laser to single-mode fiber coupler"; Jun. 1, 1979; pp. 1847-1856; Applied Optics, vol. 18, No. 11.
Journal of Lightwave Technology, vol. LT-4, No. 9, Sep. 1986, New York, pp. 1407-1413, "Laser Diode Module for Single-Mode Fiber Based on New Confocal Combination Lens Method".

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