Pavel V Mamyshev

Address:

111 Laredo Dr, Morganville, NJ 07751

VIN:

2HGFA1F54AH573305

Make:

HONDA

Model:

CIVIC

Year:

2010

US Patent:

6611368, Aug 26, 2003

Filed:

Apr 20, 2000

Appl. No.:

09/552772

Inventors:

Andrew R Grant - Matawan NJ
Pavel Viktorovich Mamyshev - Morganville NJ
Linn Frederick Mollenauer - Colts Neck NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H01S 330

US Classification:

359334, 3593413, 359123

Abstract:

A method and apparatus for producing a flat gain over very broad gain bands utilizing backward-pumped Raman amplification. The method allows for dynamic gain control through simple electronic means.

US Patent:

7312910, Dec 25, 2007

Filed:

Aug 23, 1999

Appl. No.:

09/378808

Inventors:

James Power Gordon - Rumson NJ, US
Pavel Viktorovich Mamyshev - Morganville NJ, US
Linn Frederick Mollenauer - Colts Neck NJ, US

Assignee:

Lucent Technologies, Inc. - Murray Hill NJ

International Classification:

H04B 10/12

US Classification:

359179, 359161, 359188

Abstract:

A new dispersion managed soliton transmission system where the D map period is the same as the amplifier period and the pulse breathing the in the +D sections of the D maps is approximately symmetrical. Pulse breathing symmetry by one or both of two techniques. In one technique a guiding filter is placed at the beginning of the D map period such that the guiding filter reduces the bandwidth of soliton pulses passing through it by a minimum amount. Consequently, pulse breathing symmetry is restored. The path average pulse energy vs. behavior of solitons propagating through the D map is changed such that (1) solitons of modest bandwidths have adequate energy at or near =to provide for error-free transmission over transoceanic distances at or near =0, and (2) such that the path average pulse energy is nearly independent of , at or near =0 for solitons of various pulse widths. The transmission system having this D map is much more tolerant of variations in and pulse width than the prior art. Another technique uses two different types of +D fiber in the +D section so that there is a step change in the ratio of D divided by the cross-sectional area of the fiber, or “A”, as solitons propagate from one type of +D fiber to the other type of +D fiber in the +D section.

US Patent:

7366425, Apr 29, 2008

Filed:

Mar 11, 2003

Appl. No.:

10/386359

Inventors:

Pavel V. Mamyshev - Morganville NJ, US
Christian J. Rasmussen - Nashua NH, US
Benny P. Mikkelsen - Boston MA, US
Fenghai Liu - Nashua NH, US

Assignee:

Mintera Corporation - Lowell MA

International Classification:

H04B 10/04

US Classification:

398188

Abstract:

Different techniques for generating spectrally efficient carrier-suppressed modulated optical signals, also known as “phase-shaped binary transmission” (PSBT) signals, employ electrical components that generate only 2-level or binary signals, in contrast to techniques that require 3-level electrical drivers. The PSBT modulators can be used with return-to-zero (RZ) modulators for generating RZ-PSBT signals, which have the characteristic of even greater spectral efficiency than NRZ PSBT signals. The technique is generalized to RZ signals with an arbitrary phase difference between pulses. These signals can be generated by shifting the central (carrier) frequency of an RZ modulated optical signal, which can be done using a certain phase modulation or using spectral filtering with a passband offset from the center (carrier) frequency of the modulated optical signal, and the signals can also be generated by phase modulation at a frequency lower than the signaling rate of the modulated signal.

US Patent:

7394992, Jul 1, 2008

Filed:

Mar 11, 2003

Appl. No.:

10/386358

Inventors:

Myles Kimmitt - Shrewsbury MA, US
John E. Kaufmann - Maynard MA, US
Yuval Shohet - Acton MA, US
Kent Springer - Pepperell MA, US
Tina Fjelde - Boston MA, US
Pavel V. Mamyshev - Morganville NJ, US
Benny P. Mikkelsen - Boston MA, US

Assignee:

Mintera Corporation - Acton MA

International Classification:

H04B 10/16
H04B 10/00
H04B 10/04

US Classification:

398185, 398 37, 398186, 398188, 398198

Abstract:

In an optical transmitter, continuous wave light from a laser passes through a data modulator (DM) for non-return-to-zero (NRZ) encoding of a data stream and through a pulse modulator to add return-to-zero encoding to the modulated optical signal. A modulator controller monitors the output optical signal power, optimizes the bias setting for the DM and the PM, and optimizes the phase relationship between the pulse and data components of the modulated optical signal. For each optimization, a low amplitude and low frequency dither signal is injected at appropriate points in the modulator. A single photo detector and electrical receiver are used in a multiplexed fashion to monitor the optical output signal and derive separate feedback signals. Remaining control circuitry forces a null in a respective residual dither component in the optical output signal to maintain the desired bias level or phase alignment.

US Patent:

7949261, May 24, 2011

Filed:

Apr 25, 2007

Appl. No.:

11/740212

Inventors:

Benny Mikkelsen - Newton MA, US
Pavel Mamyshev - Morganville NJ, US
Christian Rasmussen - Shrewsbury MA, US
Fenghai Liu - Nashua NH, US

Assignee:

Mintera Corporation - Acton MA

International Classification:

H04B 10/06

US Classification:

398208, 398202, 398209, 398212, 398213, 398140, 398141, 398158

Abstract:

An optical receiver includes a demodulator having a delay interferometer comprising an optical input that receives a phase modulated optical signal from a bandwidth limited transmission system. The delay interferometer has a free spectral range that is larger than a symbol rate of the phase modulated optical signal by an amount that improves receiver performance. The receiver also includes a differential detector having a first and a second photodetector. The first photodetector is optically coupled to the constructive optical output of the delay interferometer. The second photodetector is optically coupled to the destructive optical output of the delay interferometer. The differential detector combines a first electrical detection signal generated by the first photodetector and a second electrical detection signal generated by the second photodetector to generate an electrical reception signal.

US Patent:

7986885, Jul 26, 2011

Filed:

Aug 24, 2006

Appl. No.:

11/509489

Inventors:

Pavel Mamyshev - Morganville NJ, US

Assignee:

Mintera Corporation - Acton MA

International Classification:

H04B 10/04

US Classification:

398188, 398140, 398195, 398198, 398209

Abstract:

An optical communication device such as a transmitter or receiver has a control loop for controlling relative phase of two related optical signals based on signal peak intensity. An optical transmitter measures the signal peak intensity of a combined optical signal representing two data channels to adjust relative phase as desired. An optical receiver measures the signal peak intensity of combined electrical signals, single electrical signals or single optical signals to adjust relative phase as desired. Signal peak intensity is minimized or maximized by adjusting the relative phase, depending upon the modulation configuration used. The feedback control provides a consistent and robust control to stabilize the optical communication device in the presence of variables such as temperature changes, aging and manufacturing tolerances.

US Patent:

20030218790, Nov 27, 2003

Filed:

Mar 17, 2003

Appl. No.:

10/391534

Inventors:

Benny Mikkelsen - Boston MA, US
Christian Rasmussen - Nashua NH, US
Tina Fjelde - Boston MA, US
Fenghai Liu - Nashua NH, US
Pavel Mamyshev - Morganville NJ, US
David Wolfson - Boston MA, US
John Kaufmann - Maynard MA, US

Assignee:

MINTERA CORPORATION

International Classification:

G02F001/01
G02B026/00

US Classification:

359/238000

Abstract:

A high speed digital optical transmission system that improves data transmission performance in both linear and nonlinear system environments. The high speed optical transmission system includes a laser for generating a CW light beam, and a data modulator for modulating the CW light beam in response to an electrical NRZ data signal to generate a modulated NRZ optical signal with positive chirp. The bias point of the data modulator is obtained by increasing the bias offset relative to quadrature while maintaining the voltage corresponding to a 0 bit at a predetermined level. The bias point allows the data modulator to be operated so that the chirp of the modulated NRZ optical signal is positive for most of each bit time slot.

US Patent:

20110280588, Nov 17, 2011

Filed:

Apr 14, 2011

Appl. No.:

13/086804

Inventors:

Benny MIKKELSEN - Newton MA, US
Pavel MAMYSHEV - Morganville NJ, US
Christian RASMUSSEN - Shrewsbury MA, US
Fenghai LIU - Nashua NH, US

International Classification:

H04B 10/06

US Classification:

398202

Abstract:

An optical receiver includes a demodulator having a delay interferometer comprising an optical input that receives a phase modulated optical signal from a bandwidth limited transmission system. The delay interferometer has a free spectral range that is larger than a symbol rate of the phase modulated optical signal by an amount that improves receiver performance. The receiver also includes a differential detector having a first and a second photodetector. The first photodetector is optically coupled to the constructive optical output of the delay interferometer. The second photodetector is optically coupled to the destructive optical output of the delay interferometer. The differential detector combines a first electrical detection signal generated by the first photodetector and a second electrical detection signal generated by the second photodetector to generate an electrical reception signal.