Light transmission device using optical fiber

Details Light transmission device using optical fiber Light transmission device using optical fiber

1997-01-31

1999-04-27

Ullah, Akm E.

Optical waveguides

With optical coupler

Input/output coupler

359209, G02B 626

Patent

active

058988050

ABSTRACT:
A light transmission device includes a semiconductor laser for emitting a laser flux, an optical fiber for transmitting the laser flux emitted from the semiconductor laser, and a device that prevents the laser flux, reflected at an incident end surface of the optical fiber, from returning to the semiconductor laser. In particular, the preventing device may be a slanted incident end surface of the optical fiber, such that the reflected laser flux at the incident end surface is directed away from the semiconductor laser. The preventing device may also be an optical isolator that is disposed between the semiconductor laser and the incident end surface of the optical fiber.

REFERENCES:
patent: 4577926 (1986-03-01), Dewey et al.
patent: 5127072 (1992-06-01), Blauvelt et al.
patent: 5305335 (1994-04-01), Ball et al.
patent: 5631987 (1997-05-01), Lasky et al.
An English Language Translation of Japanese Provisional Patent Publication 61-59412, published Mar. 26, 1986.
An English Language Translation of Japanese Provisional Patent Publication 62-269902, published Nov. 24, 1987.

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