Optical mode filter

Details Optical mode filter Optical mode filter

1996-09-18

1998-04-28

Lee, John D.

Optical waveguides

With optical coupler

Particular coupling function

385129, G02B 614

Patent

active

057456143

ABSTRACT:
An optical mode filter, that is, an optical component in which the basic mode can propagate undamped as much as possible but which in higher modes are strongly damped. The optical mode filter, is an integrated optical wave guide formed by, a higher-refracting or an absorbent material disposed near a flat wave guide core. Two buffer layers are located opposite the wave guide core, and one is formed with a thinned region to function as a filter for higher modes being transmitted through the wave guide core.

REFERENCES:
patent: 4019051 (1977-04-01), Miller
patent: 4712855 (1987-12-01), Tolksdorf et al.
patent: 4869567 (1989-09-01), Millar et al.
patent: 5080506 (1992-01-01), Campbell et al.
patent: 5093884 (1992-03-01), Gidon et al.
IEEE Photonics Technology Letters, Bd. 8, Nr. 7, Jul. 1996, New York, U.S., Seiten 909-911, XP000595618, G. Neumann et al, "A New Integrated Optical-Mode Stripper Configuration: Numerical Analysis and Design".
Patent Abstracts of Japan, Publ. No. JP59160106, Sep. 1984.

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