Laser diode-lens alignment with 0.09 or less numerical aperture

Details Laser diode-lens alignment with 0.09 or less numerical aperture Laser diode-lens alignment with 0.09 or less numerical aperture

1997-02-04

1999-09-07

Lee, John D.

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 33, G02B 632, G02B 642

Patent

active

059499397

ABSTRACT:
A light-emitting module includes a laser diode, a laser diode holder, a lens, and a lens barrel. The laser diode is supported by the laser diode holder, and both the lens 2 and the lens barrel are supported by the lens holder. The laser diode and the lens holder engage with each other to be fixed so that the optical axes of the laser diode and the lens agree with each other. The lens holder has an optical fiber fixed in the emergent direction. The lens holder further has an opening to set the numerical aperture for the lens to the laser diode to 0.09 or less.

REFERENCES:
patent: 5077819 (1991-12-01), Greil et al.
patent: 5087109 (1992-02-01), Ishizuka et al.
patent: 5195155 (1993-03-01), Shimaoka et al.
patent: 5268978 (1993-12-01), Po et al.
patent: 5317452 (1994-05-01), Prentiss et al.
patent: 5351330 (1994-09-01), Jongewaard
patent: 5436990 (1995-07-01), Head et al.
patent: 5537503 (1996-07-01), Tojo et al.

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