Laser diode module

Details Laser diode module Laser diode module

1998-02-25

2000-09-19

Sanghavi, Hemang

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 33, 385 37, 385 92, G02B 636

Patent

active

06120191&

ABSTRACT:
In a laser diode module which can be coupled optically to an optical fiber, a laser beam emitted by a laser diode is focused by a lens on an end of an optical fiber. The lens is made of a plastic material and has concentric diffraction zones on at least one surface thereof. In a modified laser diode module, a planer diffraction lens is provided beside the focusing lens, and the planer diffraction lens has diffraction zones on at least one surface thereof.

REFERENCES:
patent: 5031991 (1991-07-01), Nakatsu et al.
patent: 5132843 (1992-07-01), Aoyama et al.
patent: 5283446 (1994-02-01), Tanisawa
patent: 5309542 (1994-05-01), Strope et al.
patent: 5412506 (1995-05-01), Feldblum et al.
patent: 5537504 (1996-07-01), Cina et al.
patent: 5555334 (1996-09-01), Ohnishi et al.
patent: 5790730 (1998-08-01), Kravitz et al.

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