Multiplex communications – Wide area network – Packet switching
Patent
1988-02-22
1990-05-15
Griffin, Robert L.
Multiplex communications
Wide area network
Packet switching
350170, 350 9619, 455612, H04B 900
Patent
active
049264125
ABSTRACT:
A wavelength division multiplexer/demultiplexer having optical path lengths between a fiber array and a Fourier transform lens, and between a dispersion grating and the lens equal to the focal length of the lens. The optical path lengths reduce losses due to angular acceptance mismatch in the multiplexer. Close orientation of the fiber array about the optical axis and the use of a holographic dispersion grating reduces other losses in the system. Multi-exposure holographic dispersion gratings enable the multiplexer/demultiplexer for extremely broad-band simultaneous transmission and reflection operation. Individual Bragg plane sets recorded in the grating are dedicated to and operate efficiently on discrete wavelength ranges.
REFERENCES:
patent: 3953727 (1976-04-01), d'Auria et al.
patent: 4359259 (1982-11-01), Horner et al.
patent: 4387953 (1983-06-01), Ludman et al.
patent: 4622662 (1987-11-01), Laude et al.
patent: 4652080 (1987-03-01), Carter et al.
patent: 4675860 (1987-06-01), Laude et al.
patent: 4707056 (1987-11-01), Bittner et al.
patent: 4740951 (1988-04-01), Lizet et al.
patent: 4748614 (1988-05-01), Dammann et al.
Jannson Joanna L.
Jannson Tomasz P.
Yeung Peter C.
Beek L. Van
Griffin Robert L.
Physical Optics Corporation
LandOfFree
High channel density wavelength division multiplexer with define does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High channel density wavelength division multiplexer with define, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High channel density wavelength division multiplexer with define will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-627499