Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector
Patent
1998-03-16
1999-11-02
Sanghavi, Hemang
Optical waveguides
With disengagable mechanical connector
Optical fiber to a nonfiber optical device connector
385 92, 385 93, 385 11, 385 33, 372 75, 372703, 359341, G02B 636, H01S 3091, H01S 300
Patent
active
059785357
ABSTRACT:
An active layer of a semiconductor laser element held by a laser mount is formed to be closer to the bottom than to the center of the height of the semiconductor laser element. A laser beam emitted from the active layer passes through a collective lens and an optical isolator and enters an incidence portion of an optical fiber. Returning light reflected by the incidence portion of the optical fiber passes through the optical isolator and the collective lens and is collected onto an end face of the laser mount. The optical isolator includes first and second rutiles which transmit normal light with refraction and abnormal light without refraction, a Faraday element which rotates a polarization plane of transmitted light in the clockwise direction by 45 degrees, and a permanent magnet for applying a magnetic field to the Faraday element.
REFERENCES:
patent: 5416869 (1995-05-01), Yoshino
patent: 5566264 (1996-10-01), Kuke et al.
patent: 5712940 (1998-01-01), Van Roemburg et al.
patent: 5841922 (1998-11-01), Iwatsuka et al.
Kimura Souichi
Mitsuda Masahiro
Uno Tomoaki
Matsushita Electric - Industrial Co., Ltd.
Sanghavi Hemang
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