Optical wavelength filter device

Details Optical wavelength filter device Optical wavelength filter device

1991-09-27

1993-02-23

Ullah, Akm E.

Optical waveguides

With optical coupler

Particular coupling function

G02B 610, G02B 638, H01S 3082

Patent

active

051897148

ABSTRACT:
An optical wavelength filter device capable of increasing the number of channels by narrowing a line width and widening a tuning width and comprising a first optical wavelength filter of a mode conversion type and a second optical wavelength filter of an interferometer type optically coupled with the first optical wavelength filter.

REFERENCES:
patent: 4358851 (1982-11-01), Scifres et al.
patent: 4861136 (1989-08-01), Stone et al.
patent: 4878731 (1989-11-01), Caron et al.
patent: 5031989 (1991-07-01), Morishita et al.
patent: 5073004 (1991-12-01), Clayton et al.
"Wavelength-Tunable Optical Filters: Applications and Technologies," by Haim Kobrinski and Kwok-Wai Cheung, IEEE Communications Magazine, Oct. 1989, pp. 53-63.

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