Karl M Kissa

6341031, Jan 22, 2002

Nov 4, 1999

09/428969

Gregory J. McBrien - Cromwell CT
Karl M. Kissa - Simsbury CT
Peter Hallemeier - Meriden CT
Thomas Joseph Gryk - Windham CT

JDS Uniphase Corporation - San Jose CA

G02F 100

359237, 385 3, 385 9

An optical pulse generator having a high order transfer function that comprises a first and a second nested interferometric modulator, each modulator comprising an optical input, an electrical input, a first arm, a second arm and an optical output. The second interferometric modulator is optically coupled into the second arm of the first interferometric modulator. The optical output of the first interferometric modulator generates pulses at a repetition rate that is proportional to a multiple of a frequency of an electrical signal applied to the electrical input of at least one of the first and second interferometric modulator and at a duty cycle that is inversely proportional to the order of the transfer function of the optical pulse generator. The multiple may be any integer equal to or greater than one.

6370290, Apr 9, 2002

Sep 19, 1997

08/934189

Gary A. Ball - Simsbury CT
Robert W. Ade - Bolton CT
Karl Kissa - Avon CT
Paul Dunn - Westfield MA
Timothy C. Munks - Crystal Lake IL
Eitan Gertel - North Wales PA

Uniphase Corporation - San Jose CA

G02B 612

385 14

An integrated optical transmitter for use in an optical system has an optical head assembly with an optical beam generator for providing an optical beam and a lens assembly collecting the optical beam and generating therefrom a formed optical beam. Interface optics receives the formed optical beam and provides optical coupling so as to minimize insertion loss to the optical beam. Also included is an optical modulator for receiving the optical beam from the interface optics and for providing a modulated optical beam in response to received modulation signals. The optical modulator is coupled to the interface optics to be in a fixed relationship therewith.

6449080, Sep 10, 2002

Mar 8, 2000

09/520874

Gregory J. McBrien - Cromwell CT
Thomas Joseph Gryk - Windham CT
Karl M. Kissa - Simsbury CT
Ed Wooten - Windsor CT
Russell Fuerst - East Windsor CT

JDS Uniphase Corporation - San Jose CA

G02F 103

359245, 359322, 385 2, 385 3, 385 8

A co-planar waveguide interferometric electro-optic modulator that reduces the bias point sensitivity of the modulator to ambient temperature and to applied RF is described. The modulator includes a first and second waveguide that are formed in an electro-optic substrate. A RF electrode is positioned on the electro-optic substrate between the first and the second waveguide. A ground electrode that may include a slot is positioned proximate to the second waveguide. A guard ground electrode is positioned proximate to the first waveguide to sink heat from the RF electrode and may also balance the thermal stress in the two waveguides. A dielectric material may also be positioned proximate to the first waveguide to balance the thermal stress in the two waveguides.

6483953, Nov 19, 2002

May 11, 1999

09/309444

Gregory J. McBrien - Cromwell CT
Karl M. Kissa - Simsbury CT
Ed Wooten - Windsor CT

JDS Uniphase Corporation - San Jose CA

G02F 1035

385 2, 385 3

An electro-optic device including an optical waveguide formed in an electro-optic material that propagates an optical signal along a first direction of propagation is described. The device also includes an electrical waveguide formed in the electro-optic material and positioned co-linear relative to the optical waveguide and in electromagnetic communication with the optical waveguide, where the electrical waveguide also propagates the electrical signal in the first direction of propagation. A compensation network is electrically coupled to the electrical waveguide at a junction and propagates the electrical signal in a second direction of propagation that is substantially non-co-linear with the first direction of propagation. In operation, the compensation network modifies at least one of a phase or an amplitude of the electrical signal at the junction relative to a phase or an amplitude of the accumulated modulation on the optical signal at the junction, respectively, and then returns the modified electrical signal to the electrical waveguide.

6580840, Jun 17, 2003

Sep 22, 2000

09/668401

Gregory J McBrien - Cromwell CT
Karl M. Kissa - Simsbury CT
Timothy U. Horton - Weatogue CT

JDS Uniphase Corporation - Ottawa

G02F 1035

385 2, 385 3

A high-efficiency electro-optic modulator with an equalized frequency response is described. The modulator includes an optical waveguide formed in an electro-optic material that propagates an optical signal along a first direction of propagation. An electrical waveguide is formed on the electro-optic material and positioned generally co-linear relative to the optical waveguide and in electromagnetic communication with the optical waveguide. The geometry of the electrical waveguide is selected to achieve a modulation efficiency at a frequency in a bandwidth of a digital spectrum. A compensation network is electrically coupled to the electrical waveguide at a junction. The compensation network reduces an electro-optic response of the electro-optic modulator below the mean frequency bandwidth of the digital spectrum, thereby causing an increase of the electro-optic response above the mean frequency of the digital spectrum.

6646776, Nov 11, 2003

Nov 23, 2002

10/065833

Steve Cheung - Storrs CT
Karl Kissa - Simsbury CT
Gregory J. McBrien - Cromwell CT

JDS Uniphase Corporation - San Jose CA

G02F 103

359254, 385 8

The invention relates to apparatus and methods for suppressing high frequency resonance in an electro-optical device. The electro-optical device includes an optical waveguide formed in the upper surface of a substrate. The device further includes a plurality of electrically floating electrode segments that are positioned on the substrate to intensify an electric field in the optical waveguide. The device also includes a plurality of electrically grounded electrode segments that are positioned on the substrate for prohibiting modal conversion and propagation of high order modes in the plurality of electrically grounded electrode segments and in the plurality of electrically floating electrode segments, thereby suppressing modal coupling to the substrate. The device further includes a buffer layer formed on the upper surface of the substrate and a driving electrode formed on an upper surface of the buffer layer for receiving an RF signal that induces the electric field in the optical waveguide.

6845183, Jan 18, 2005

Nov 24, 2003

10/720796

Siu Kwan Cheung - Storrs CT, US
Srinath Chakravarthy - Enfield CT, US
Karl Kissa - Simbury CT, US

JDS Uniphase Corporation - San Jose CA

G02F 1035
G02F 1295
G02F 103
G02F 100

385 2, 385 3, 385 8, 359245, 359322

A co-planar waveguide interferometric electro-optic modulator is disclosed. A Z-cut lithium niobate electro-optic substrate includes a first and second waveguide that are formed in the lithium niobate electro-optic substrate. An elongate RF electrode at least partially covers one of the waveguides. A slotted electrode is disclosed formed by two elongate substantially-parallel electrodes one of which is at least partially covers the other of the waveguides. At least one electrode is substantially greater, preferably at least twice the width of the elongate RF electrode.

6885780, Apr 26, 2005

Dec 17, 2002

10/248086

Steve Cheung - Storrs CT, US
Karl Kissa - Simsbury CT, US
Gregory J. McBrien - Cromwell CT, US

JDSU Uniphase Corporation - San Jose CA

G02F001/035

385 2, 385 8

The invention relates to suppression of high frequency resonance in an electro-optical device. The electro-optical device includes an optical waveguide formed in a substrate and a plurality of electrically floating electrode segments that are positioned on the substrate to intensify an electric field in the optical waveguide. The device also includes a RF ground electrode that is positioned on the substrate. The RF ground electrode defines a slot having a shape that suppresses modal conversion and propagation of high order modes in the RF ground electrode and in the plurality of electrically floating electrode segments, thereby suppressing modal coupling to the substrate. The device further includes a buffer layer formed on the upper surface of the substrate, on the plurality of electrically floating electrode segments, and in the slot. A driving electrode receives a RF signal that induces-the electric field in the optical waveguide.