1
Jialing Yang, Simon Cao, Jiyong Ma, Christopher Lin: Method and system for testing a tunable chromatic dispersion, dispersion slope, and polarization mode dispersion compensator utilizing a virtually imaged phased array. Avanex Corporation, Sawyer Law Group, August 27, 2002: US06441959 (102 worldwide citation)

The present invention provides a dispersion compensator which utilizes a Virtually Imaged Phased Array (VIPA), gratings, and birefringent wedges to moderate chromatic dispersion, dispersion slope and polarization mode dispersion, and a method and system for testing such a dispersion compensator. The ...


2
Simon X F Cao: Tunable chromatic dispersion and dispersion slope compensator utilizing a virtually imaged phased array. Avanex Corporation, Sawyer Law Group, October 9, 2001: US06301048 (96 worldwide citation)

The present invention provides a method and system for dispersion compensation for a composite optical signal in an optical fiber transmission system. The composite optical signal includes a plurality of channels, each of the plurality of channels includes a band of wavelengths, where the bands of w ...


3
William Z Guan: Optical fiber clamping apparatus to hold fiber cable while providing retractable distance across module unit. Avanex Corporation, Fernandez & Associates, May 25, 2004: US06741784 (64 worldwide citation)

A fiber routing tray to hold, organize, and route fiber cables from external sources to other optical modules and optical components. The fiber routing tray mechanical device comprises a fiber entry block, fiber channel slot, retention bar with fiber clamps, fiber clamping slots, curved fiber routin ...


4
David M Rowe: High duty cycle synchronized multi-line scanner. Avanex Corporation, Sawyer Law Group, September 11, 2001: US06288817 (30 worldwide citation)

A scanner includes a single scanning element such as a holographic disc or a polygon mirror and an illumination system that provides a plurality of input beams that are directed to different areas on the scanning element. In one embodiment, a light source provides a single beam that is alternately d ...


5
Simon X F Cao: Optical performance monitor. Avanex Corporation, Sawyer Law Group, February 5, 2002: US06344910 (29 worldwide citation)

The present invention provides a method and system for monitoring a composite optical signal in an optical network. The method includes separating the composite optical signal into a plurality of subsets, each subset including a plurality of data points, and detecting the plurality of data points. T ...


6
Masataka Shirasaki, Simon Cao: Virtually imaged phased array (VIPA) having a varying reflectivity surface to improve beam profile. Fujitsu, Avanex Corporation, Staas & Halsey, February 22, 2000: US06028706 (26 worldwide citation)

A virtually imaged phased array (VIPA) operating as a wavelength splitter to separate individual carriers from a wavelength division multiplexed (WDM) light. The VIPA has first and second surfaces. The second surface has a reflectivity which causes a portion of light incident thereon to be transmitt ...


7
Giovanni Barbarossa: Method and apparatus for tunable interferometer utilizing variable air density. Avanex Corporation, Moser Patterson & Sheridan L L, March 15, 2005: US06867868 (25 worldwide citation)

An air-density-tuned interferometer includes: a hermetically sealed enclosure; a front window coupled to the hermetically sealed enclosure; an interferometer residing within the hermetically sealed enclosure; and a pressure changing device coupled to the hermetically sealed enclosure. The interferom ...


8
Marc G Brun, Scott M Hellman, Heinrich G Muller, Paul A Townley Smith, Michael Ushinsky: Six-port optical package and method of manufacturing. Avanex Corporation, Moser Patterson & Sheridan L, July 27, 2004: US06767139 (24 worldwide citation)

An apparatus and method of manufacturing multiple-port optical devices and packages includes the steps of positioning pairs of screened optical fibers in a precision ferrule of a collimating assembly; determining a desired angle of incidence (AOI) for an optical element; positioning the assembly in ...


9
Andrea Castoldi, Flavio Dell&apos orto, Davide Sciancalepore: Attenuator integrated with modulator and transmitting module for WDM systems using the same. Avanex Corporation, Moser Patterson & Sheridan L, August 31, 2004: US06785434 (24 worldwide citation)

An optical device integrated on a planar substrate is disclosed, comprising a Y-branch attenuator optically coupled to a Mach-Zehnder modulator. The device also comprises means for reducing a crosstalk caused by unguided radiation between the Y-branch attenuator and the Mach-Zehnder modulator. In on ...


10
Song Peng, Ming Li: Selective intensity modulation of channels in a multiplexed optical communication system. Avanex Corporation, Sawyer Law Group, March 4, 2003: US06529307 (24 worldwide citation)

A method and apparatus for achieving dynamic intensity modulation of the channels in a wavelength-division multiplexed optical communication system is presented. Wavelengths are spatially separated into a plurality of channels, the polarization states of which are individually modulated. The channel ...