Matthew D Mitchell

US Patent:

7283694, Oct 16, 2007

Filed:

Oct 8, 2002

Appl. No.:

10/267331

Inventors:

David F. Welch - Menlo Park CA, US
Vincent G. Dominic - Fremont CA, US
Mark J. Missey - San Jose CA, US
Radhakrishnan L. Nagarajan - Cupertino CA, US
Atul Mathur - San Jose CA, US
Frank H. Peters - San Jose CA, US
Robert B. Taylor - Windsor Mill MD, US
Matthew L. Mitchell - Bethesda MD, US
Alan C. Nilsson - Mountain View CA, US
Stephen G. Grubb - Ellicott City MD, US
Richard P. Schneider - Mountain View CA, US
Charles H. Joyner - Sunnyvale CA, US
Jonas Webjorn - Redwood City CA, US
Drew D. Perkins - Saratoga CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

G02B 6/12

US Classification:

385 14, 398 91, 372 26, 372 32

Abstract:

A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.

US Patent:

7295783, Nov 13, 2007

Filed:

Oct 8, 2002

Appl. No.:

10/267212

Inventors:

Jagdeep Singh - Los Gatos CA, US
Drew D. Perkins - Saratoga CA, US
David F. Welch - Menlo Park CA, US
Mark Yin - Cupertino CA, US
Stephen G. Grubb - Ellicott City MD, US
Robert R. Taylor - Windsor Mill MD, US
Vincent G. Dominic - Fremont CA, US
Matthew L. Mitchell - Sunnyvale CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

H04J 14/02
H04B 10/00
H04B 10/02

US Classification:

398175, 398 87, 398 97, 398164

Abstract:

A digital optical network (DON) is a new approach to low-cost, more compact optical transmitter modules and optical receiver modules for deployment in optical transport networks (OTNs). One important aspect of a digital optical network is the incorporation in these modules of transmitter photonic integrated circuit (TxPIC) chips and receiver photonic integrated circuit (RxPIC) chips in lieu of discrete modulated sources and detector sources with discrete multiplexers or demultiplexers.

US Patent:

7340122, Mar 4, 2008

Filed:

Jun 22, 2007

Appl. No.:

11/767076

Inventors:

David F. Welch - Menlo Park CA, US
Vincent G. Dominic - Dayton OH, US
Mark J. Missey - San Jose CA, US
Radhakrishnan L. Nagarajan - Cupertino CA, US
Atul Mathur - Santa Clara CA, US
Frank H. Peters - Cork, IE
Robert B. Taylor - Charleston SC, US
Matthew L. Mitchell - Sunnyvale CA, US
Alan C. Nilsson - Mountain View CA, US
Stephen G. Grubb - Ellicott City MD, US
Richard P. Schneider - Mountain View CA, US
Charles H. Joyner - Sunnyvale CA, US
Jonas Webjorn - Redwood City CA, US
Drew D. Perkins - Saratoga CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

G02B 6/12

US Classification:

385 14, 398 91, 372 50, 372 26, 372 32

Abstract:

A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.

US Patent:

7477807, Jan 13, 2009

Filed:

Jun 21, 2007

Appl. No.:

11/766693

Inventors:

David F. Welch - Menlo Park CA, US
Vincent G. Dominic - Dayton OH, US
Mark J. Missey - San Jose CA, US
Radhakrishnan L. Nagarajan - Cupertino CA, US
Atul Mathur - Santa Clara CA, US
Frank H. Peters - Cork, IE
Robert B. Taylor - Windsor Mill MD, US
Matthew L. Mitchell - Bethesda MD, US
Alan C. Nilsson - Mountain View CA, US
Stephen G. Grubb - Ellicott City MD, US
Richard P. Schneider - Mountain View CA, US
Charles H. Joyner - Sunnyvale CA, US
Jonas Webjorn - Redwood City CA, US
Drew D. Perkins - Saratoga CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

G02B 6/12

US Classification:

385 14, 398 91, 372 26, 372 32, 372 501

Abstract:

A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.

US Patent:

7512295, Mar 31, 2009

Filed:

Jun 20, 2007

Appl. No.:

11/766077

Inventors:

David F. Welch - Menlo Park CA, US
Vincent G. Dominic - Dayton OH, US
Mark J. Missey - San Jose CA, US
Radhakrishnan L. Nagarajan - Cupertino CA, US
Atul Mathur - Santa Clara CA, US
Frank H. Peters - Cork, IE
Robert B. Taylor - Windsor Mill MD, US
Matthew L. Mitchell - Bethesda MD, US
Alan C. Nilsson - Mountain View CA, US
Stephen G. Grubb - Elicott City MD, US
Richard P. Schneider - Mountain View CA, US
Charles H. Joyner - Sunnyvale CA, US
Jonas Webjorn - Redwood City CA, US
Drew D. Perkins - Saratoga CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

G02B 6/12

US Classification:

385 14, 398 91, 372 26, 372 32, 372 501

Abstract:

A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.

US Patent:

7519246, Apr 14, 2009

Filed:

Oct 9, 2007

Appl. No.:

11/869420

Inventors:

David F. Welch - Menlo Park CA, US
Vincent G. Dominic - Fremont OH, US
Mark J. Missey - San Jose CA, US
Radhakrishnan L. Nagarajan - Cupertino CA, US
Atul Mathur - San Jose CA, US
Frank H. Peters - San Jose CA, US
Robert B. Taylor - Windsor Mill MD, US
Matthew L. Mitchell - Bethesda MD, US
Alan C. Nilsson - Mountain View CA, US
Stephen G. Grubb - Ellicott City MD, US
Richard P. Schneider - Mountain View CA, US
Charles H. Joyner - Sunnyvale CA, US
Jonas Webjorn - Redwood City CA, US
Robert Grencavich - Kempton PA, US
Vinh D. Nguyen - Bethlehem PA, US
Marco E. Sosa - San Jose CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

G02B 6/12

US Classification:

385 14, 398 91, 372 50, 372 26, 372 32

Abstract:

A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.

US Patent:

7627254, Dec 1, 2009

Filed:

Jun 22, 2006

Appl. No.:

11/425944

Inventors:

Matthew L. Mitchell - Sunnyvale CA, US
Robert B. Taylor - Charleston SC, US
Edward E. Sprague - Woodside CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

H04B 10/00

US Classification:

398168

Abstract:

A system, apparatus and method are described for controlling the gain across one or more amplifier nodes within an optical span. In one embodiment, a fast local amplifier constant gain control loop is provided that maintains a constant gain across an amplifier node for each of the channels within an optical signal. A slow link level gain setting control loop is provided to set and/or adjust the target gain on the amplifier node(s). A gain adjust sequence is performed by the slow link level gain setting control loop to adjust the target gain(s) in response to various events and mechanisms. A “time of flight” protection method is also provided to ensure consistency between the fast local amplifier gain control loop and the slow link level gain setting control loop.

US Patent:

7634195, Dec 15, 2009

Filed:

Nov 12, 2007

Appl. No.:

11/938761

Inventors:

Jagdeep Singh - Los Gatos CA, US
Drew Perkins - Saratoga CA, US
David F. Welch - Atherton CA, US
Mark Yin - Cupertino CA, US
Stephen G. Grubb - Reisterstown MD, US
Robert R. Taylor - Charleston SC, US
Vincent G. Dominic - Dayton OH, US
Matthew L. Mitchell - Monte Sereno CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

H04J 14/02

US Classification:

398 79, 398 82, 398 43

Abstract:

A digital optical network (DON) is a new approach to low-cost, more compact optical transmitter modules and optical receiver modules for deployment in optical transport networks (OTNs). One important aspect of a digital optical network is the incorporation in these modules of transmitter photonic integrated circuit (TxPIC) chips and receiver photonic integrated circuit (TxPIC) chips in lieu of discrete modulated sources and detector sources with discrete multiplexers or demultiplexers.