Selective optical device and wavelength multiplexer-demultiplexer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 11, 2000
Grant Date -
N/A
app pub date -
May 4, 1998
filing date -
May 9, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wavelength selective optical device includes a two-dimensional grating (6) and a device 11. The two-dimensional grating represents an intrinsic function. The device (11) is to change the complex amplitude of the electromagnetic field of the light wave, according to a filtering function, and is to expand the image spot into a monochromatic light in the direction of the spectral dispersion. An optical fiber wavelength multiplexer-demultiplexer includes a filter (11), a mirror (9) and a grating (6). The optical axis of the mirror passes through the plane of the grating and is parallel to the lines of the grating. The filter (11) is arranged in the vicinity of the mirror to control the intrinsic function of the multiplexer-demultiplexer.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully