Optical filtering module and optical devices using such...

Details Optical filtering module and optical devices using such... Optical filtering module and optical devices using such...

2005-04-05

2005-04-05

Le, Thanh-Tam (Department: 2839)

Optical waveguides

With optical coupler

Input/output coupler

Reexamination Certificate

active

06876789

ABSTRACT:
There are disclosed an optical filtering module and various optical devices using the filtering module. The optical filtering module has an optical filter for transmitting, attenuating or reflecting light having a certain wavelength range, a first optical system having an optical fiber for guiding light to be transferred to the optical filter, a second optical system having an optical fiber for guiding light transferred from the optical filter, the second optical system being opposingly arranged to the first optical system while interposing the optical filter therebetween and an outer cylindrically shaped glass holder for holding therein the optical filter, the first optical system and the second optical system secured thereto.

REFERENCES:
patent: 5359683 (1994-10-01), Pan
patent: 5682452 (1997-10-01), Takahashi
patent: 6404954 (2002-06-01), Zhu et al.
patent: 6483982 (2002-11-01), Takahashi
patent: 11-337765 (1999-12-01), None
patent: 2000-056195 (2000-02-01), None
patent: WO 9619743 (1996-06-01), None

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