Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8032022 | Method for lightpath monitoring in an optical routing network | Xiang Zhou | 2011-10-04 |
| 8018599 | Interferometric method and apparatus for measuring optical signal quality in optical communications system | Mikhail Brodsky | 2011-09-13 |
| 8019222 | Digital encoding of labels for optical packet networks | Vinay Anant Vaishampayan | 2011-09-13 |
| 7925160 | Optical swapping of digitally-encoded optical labels | Vincent Anant Vaishampayan | 2011-04-12 |
| 7792407 | Optical devices with multiple wafers containing planar optical waveguides | Nicholas J. Frigo | 2010-09-07 |
| 7630636 | Optical swapping of digitally-encoded optical labels | Vincent Anant Vaishampayan | 2009-12-08 |
| 7580632 | Method and apparatus for managing lightpaths in optically-routed networks | Vinay V. Vaishampayan | 2009-08-25 |
| 7512342 | Digital encoding of labels for optical packet networks | Vincent Anant Vaishampayan | 2009-03-31 |
| 7499173 | Interferometric method and apparatus for measuring optical signal quality in optical communications system | Mikhail Brodsky | 2009-03-03 |
| 7437031 | Optical devices with multiple wafers containing planar optical waveguides | Nicholas J. Frigo | 2008-10-14 |
| 7366417 | Delivering multicast services on a wavelength division multiplexed network using a configurable four-port wavelength selective crossbar switch | Nicholas J. Frigo, Cedric Fung Lam | 2008-04-29 |
| 7362932 | Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguides | Nicholas J. Frigo | 2008-04-22 |
| 7200303 | Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguides | Nicholas J. Frigo | 2007-04-03 |
| 7164826 | Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguides | Nicholas J. Frigo | 2007-01-16 |
| 7085454 | Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguides | Nicholas J. Frigo | 2006-08-01 |
| 7027733 | Delivering multicast services on a wavelength division multiplexed network using a configurable four-port wavelength selective crossbar switch | Nicholas J. Frigo, Cedric Fung Lam | 2006-04-11 |
| 6751372 | Four-port wavelength-selective crossbar switches (4WCS) using reciprocal WDM MUX-DEMUX and optical circulator combination | Nicholas J. Frigo, Cedric Fung Lam | 2004-06-15 |
| 6614568 | Wavelength-cyclic communication network and wavelength-cyclic modules | — | 2003-09-02 |
| 6078597 | Method and apparatus for optical signal processing by photo-induced loss and/or gain gratings | — | 2000-06-20 |
| 5991058 | Method and apparatus for a network comprising a fourier plane photonics package | Joseph E. Ford | 1999-11-23 |
| 5980117 | Methods and arrangements for duplex fiber handling | Joseph E. Ford | 1999-11-09 |
| 5857048 | Fourier-plane photonics package | Joseph E. Ford | 1999-01-05 |
| 5657148 | Apparatus and method for a single-port modulator having amplification | Jay Wiesenfeld | 1997-08-12 |
| 5574589 | Self-amplified networks | Thomas H. Wood | 1996-11-12 |