Light-emitting module

Details Light-emitting module Light-emitting module

1997-02-05

1998-05-12

Ngo, John

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 34, G02B 630

Patent

active

057518785

ABSTRACT:
A light-emitting module has a laser diode (LD) held on an LD holder, and a lens contained in a lens barrel held on a lens holder. The LD holder and the lens holder are combined so that the optical axis of a laser beam emitted by the laser diode is aligned with the optical axis of the lens. The lens holder is provided in its outlet portion with an aperture to adjust the fiber-side NA of the lens to 0.08 or below. Thus, the laser beam can be focused on an inlet end surface of an optical fiber in a spot of a relatively great diameter.

REFERENCES:
patent: 5307435 (1994-04-01), Chihara
patent: 5315609 (1994-05-01), Tanaka et al.
patent: 5353294 (1994-10-01), Shigeno
patent: 5416869 (1995-05-01), Yoshimo
patent: 5452389 (1995-09-01), Tonai et al.

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