Tunable wavelength filter with invariant transmission and...

Details Tunable wavelength filter with invariant transmission and... Tunable wavelength filter with invariant transmission and...

2005-09-13

2005-09-13

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Correction of deleterious effects

C385S018000, C398S082000, C398S085000

Reexamination Certificate

active

06943938

ABSTRACT:
Improved designs of optical devices for processing optical signals with own or more specified wavelengths are disclosed. According to embodiment, a filter mirror assembly appears an “L” shape and provides a filtering function as well as a reflecting function. The filter mirror assembly is so mounted that a rotation thereof will not alter the optical path the beam positions of signals resulted from the filter mirror assembly.

REFERENCES:
patent: 5812291 (1998-09-01), Bendelli et al.
patent: 6748133 (2004-06-01), Liu et al.
patent: 6839517 (2005-01-01), Anigbo et al.
patent: 6845187 (2005-01-01), Weaver et al.

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