Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-08-12
2000-06-20
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359130, 385 37, H04B 1018, H04J 1402
Patent
active
060784180
ABSTRACT:
A variable dispersion optical unit is used to vary the relative dispersion between an input signal and an output signal of the optical unit under control of a control circuit. The control unit uses an optical homodyne detector to beat the input optical signal with the output optical signal to generate a control signal to adjust the relative dispersion a variable dispersive element. The variable dispersive optical element may be selected from a group of dispersive elements including at least a Bragg grating, a Fabry-Perot filter, a Mach-Zehnder filter, and a waveguide routing element. The variable dispersive optical unit can be used as part of a variable wavelength selective optical circuit (e.g., a tunable wavelength filter) where the varying dispersion characteristics is used to control the selection of the wavelength of the tunable wavelength filter, or is used to select the drop/add wavelength(s) of an Add/Drop circuit.
REFERENCES:
patent: 5673129 (1997-09-01), mizrahi
patent: 5808788 (1998-09-01), Park et al.
patent: 5915052 (1999-06-01), Ball
patent: 5933270 (1999-08-01), Toyohara
patent: 5963361 (1999-10-01), Taylor et al.
patent: 5966237 (1999-10-01), Sugaya et al.
Hansen Per Bang
Nielsen Torben N.
Caccuro John A.
Lucent Technologies - Inc.
Pascal Leslie
LandOfFree
Wavelength locking of variable dispersive elements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wavelength locking of variable dispersive elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wavelength locking of variable dispersive elements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1858024