Patents by Inventor John J. Veselka
John J. Veselka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8433193Abstract: The present disclosure provides systems and methods for channel power offsets for multi-rate dense wave division multiplexed (DWDM) transmission over optical add-drop multiplexers (OADMs). The present invention includes algorithms to set power levels of each type of channel in different sections of a fiber system to optimize the performance of that type of channel at the receiver. For example, the present invention can optimize power levels based on different channel modulation formats, bit rates, channel spacings, and the like. Advantageously, the present invention improves the total capacity (bit rate) and reach that channels of a given bit rate can achieve, and maximizes the reach of channels without sacrificing capacity.Type: GrantFiled: October 31, 2008Date of Patent: April 30, 2013Assignee: Ciena CorporationInventors: John J. Veselka, Jr., Harshad Sardesai
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Publication number: 20100111534Abstract: The present disclosure provides systems and methods for channel power offsets for multi-rate dense wave division multiplexed (DWDM) transmission over optical add-drop multiplexers (OADMs). The present invention includes algorithms to set power levels of each type of channel in different sections of a fiber system to optimize the performance of that type of channel at the receiver. For example, the present invention can optimize power levels based on different channel modulation formats, bit rates, channel spacings, and the like. Advantageously, the present invention improves the total capacity (bit rate) and reach that channels of a given bit rate can achieve, and maximizes the reach of channels without sacrificing capacity.Type: ApplicationFiled: October 31, 2008Publication date: May 6, 2010Inventors: John J. VESELKA, JR., Harshad Sardesai
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Patent number: 7133193Abstract: Optical systems of the present invention include amplifiers configured to achieve maximum signal channel in a span downstream of the transmitter and amplifier site and to decrease the interaction between the wavelengths at high signal channel powers. In addition, the system can include various types of optical fiber positioned in the network to provide for increased signal channel powers and higher gain efficiencies in the system.Type: GrantFiled: July 16, 2004Date of Patent: November 7, 2006Assignee: Corvis CorporationInventors: Donald M. Cornwell, Jr., John J. Veselka, Jr., Stephen G. Grubb, Thomas D. Stephens, Ruxiang Jin, Alistair J. Price, Michael C. Antone
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Patent number: 7010229Abstract: Optical transmission systems of the present invention include at least one optical amplifier generally including an optical signal amplifying medium supplied with pump power in the form of optical energy in via an optical pump source. The pump source includes multiple optical sources, at least two of which provide optical energy in first and second wavelength ranges separated by a frequency difference. The amplifier includes a wavelength controller configured to adjust the wavelength range of at least one of the optical sources to vary the frequency difference in a manner sufficient to vary optical intensity noise produced when the optical energy from the multiple optical sources is combined.Type: GrantFiled: July 16, 2004Date of Patent: March 7, 2006Assignee: Corvis CorporationInventors: David J. Copeland, John J. Veselka, Jr., Donald M. Cornwell, Jr., Thomas D. Stephens, Dean M. Smith, Mark A. Laliberte
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Patent number: 6947670Abstract: An add/drop arrangement using broadband optical couplers provides a low-loss, highly flexible add/drop capability for survivable wavelength division multiplexed (WDM) ring networks. At each node in the ring having the broadband optical coupler-based add/drop element, a portion of optical signal power of the entire WDM signal (i.e., all optical channels) is tapped off so that one or more optical channels of particular wavelengths can be dropped at the node. Information (e.g., data) to be added at the node is supplied in an optical channel that is added to the WDM signal via the broadband coupler. Because the add/drop element uses a broadband coupler, another portion of optical signal power of the WDM signal, including any added optical channels, passes through the node onto the ring. Depending on the specific ring topology being used with the broadband coupler-based add/drop arrangement, additional wavelength assignment and handling measures may be required.Type: GrantFiled: June 30, 1999Date of Patent: September 20, 2005Assignee: Lucent Technologies Inc.Inventors: Steven Kenneth Korotky, John J. Veselka
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Publication number: 20040264968Abstract: Optical systems of the present invention include amplifiers configured to achieve maximum signal channel in a span downstream of the transmitter and amplifier site and to decrease the interaction between the wavelengths at high signal channel powers. In addition, the system can include various types of optical fiber positioned in the network to provide for increased signal channel powers and higher gain efficiencies in the system.Type: ApplicationFiled: July 16, 2004Publication date: December 30, 2004Applicant: Corvis CorporationInventors: Donald M. Cornwell, John J. Veselka, Stephen G. Grubb, Thomas D. Stephens, Ruxiang Jin, Alistair J. Price, Michael C. Antone
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Publication number: 20040253001Abstract: Optical transmission systems of the present invention include at least one optical amplifier generally including an optical signal amplifying medium supplied with pump power in the form of optical energy in via an optical pump source. The pump source includes multiple optical sources, at least two of which provide optical energy in first and second wavelength ranges separated by a frequency difference. The amplifier includes a wavelength controller configured to adjust the wavelength range of at least one of the optical sources to vary the frequency difference in a manner sufficient to vary optical intensity noise produced when the optical energy from the multiple optical sources is combined.Type: ApplicationFiled: July 16, 2004Publication date: December 16, 2004Applicant: Corvis CorporationInventors: David J. Copeland, John J. Veselka, Donald M. Cornwell, Thomas D. Stephens, Dean M. Smith, Mark A. Laliberte
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Patent number: 6782209Abstract: Optical transmission systems of the present invention include at least one optical amplifier generally including an optical signal amplifying medium supplied with pump power in the form of optical energy in via an optical pump source. The pump source includes multiple optical sources, at least two of which provide optical energy in first and second wavelength ranges separated by a frequency difference. The amplifier includes a wavelength controller configured to adjust the wavelength range of at least one of the optical sources to vary the frequency difference in a manner sufficient to vary optical intensity noise produced when the optical energy from the multiple optical sources is combined.Type: GrantFiled: March 2, 2001Date of Patent: August 24, 2004Assignee: Corvis CorporationInventors: David J. Copeland, John J. Veselka, Jr., Donald M. Cornwell, Jr., Thomas D. Stephens, Dean M. Smith, Mark A. Laliberte
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Patent number: 6771413Abstract: Optical systems of the present invention include amplifiers configured to achieve maximum signal channel in a span downstream of the transmitter and amplifier site and to decrease the interaction between the wavelengths at high signal channel powers. In addition, the system can include various types of optical fiber positioned in the network to provide for increased signal channel powers and higher gain efficiencies in the system.Type: GrantFiled: January 14, 2002Date of Patent: August 3, 2004Assignee: Corvis CorporationInventors: Donald M. Cornwell, Jr., John J. Veselka, Jr., Stephen G. Grubb, Thomas D. Stephens, Ruxiang Jin, Alistair J Price, Michael C. Antone
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Patent number: 6704139Abstract: Optical transmission systems of the present invention include at least one optical amplifier in which pump power being provided to an amplifying medium is amplified using a pump amplifier prior to being introduced into the amplifying medium. In various embodiments, a cascaded Raman resonator is used as a pump booster source to provide Raman amplification of the pump power being supplied from one or more pump sources to the signal channel amplifying medium.Type: GrantFiled: September 27, 2002Date of Patent: March 9, 2004Assignee: Corvis CorporationInventors: Stephen G. Grubb, John J. Veselka, Jr., Donald M. Cornwell, Jr.
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Publication number: 20030025989Abstract: Optical transmission systems of the present invention include at least one optical amplifier in which pump power being provided to an amplifying medium is amplified using a pump amplifier prior to being introduced into the amplifying medium. In various embodiments, a cascaded Raman resonator is used as a pump booster source to provide Raman amplification of the pump power being supplied from one or more pump sources to the signal channel amplifying medium.Type: ApplicationFiled: September 27, 2002Publication date: February 6, 2003Applicant: Corvis CorporationInventors: Stephen G. Grubb, John J. Veselka, Doanld M. Cornwell
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Patent number: 6459529Abstract: Optical transmission systems of the present invention include at least one optical amplifier in which pump power being provided to an amplifying medium is amplified using a pump amplifier prior to being introduced into the amplifying medium. In various embodiments, a cascaded Raman resonator is used as a pump booster source to provide Raman amplification of the pump power being supplied from one or more pump sources to the signal channel amplifying medium.Type: GrantFiled: November 30, 2001Date of Patent: October 1, 2002Assignee: Corvis CorporationInventors: Stephen G. Grubb, John J. Veselka, Jr., Donald M. Cornwell, Jr.
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Publication number: 20020067539Abstract: Optical transmission systems of the present invention include at least one optical amplifier in which pump power being provided to an amplifying medium is amplified using a pump amplifier prior to being introduced into the amplifying medium. In various embodiments, a cascaded Raman resonator is used as a pump booster source to provide Raman amplification of the pump power being supplied from one or more pump sources to the signal channel amplifying medium.Type: ApplicationFiled: November 30, 2001Publication date: June 6, 2002Applicant: Corvis CorporationInventors: Stephen G. Grubb, John J. Veselka, Donald M. Cornwell
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Publication number: 20020063949Abstract: Optical systems of the present invention include amplifiers configured to achieve maximum signal channel in a span downstream of the transmitter and amplifier site and to decrease the interaction between the wavelengths at high signal channel powers. In addition, the system can include various types of optical fiber positioned in the network to provide for increased signal channel powers and higher gain efficiencies in the system.Type: ApplicationFiled: January 14, 2002Publication date: May 30, 2002Applicant: Corvis CorporationInventors: Donald M. Cornwell, John J. Veselka, Stephen G. Grubb, Thomas D. Stephens, Ruxiang Jin, Alistair J. Price, Michael C. Antone
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Patent number: 6356383Abstract: Optical systems of the present invention include amplifiers configured to achieve maximum signal channel in a span downstream of the transmitter and amplifier site and to decrease the interaction between the wavelengths at high signal channel powers. In addition, the system can include various types of optical fiber positioned in the network to provide for increased signal channel powers and higher gain efficiencies in the system.Type: GrantFiled: March 31, 2000Date of Patent: March 12, 2002Assignee: Corvis CorporationInventors: Donald M. Cornwell, Jr., John J. Veselka, Jr., Stephen G. Grubb, Thomas D. Stephens, Ruxiang Jin, Alistair J. Price, Michael C. Antone
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Patent number: 6344925Abstract: Optical transmission systems of the present invention include at least one optical amplifier in which pump power being provided to an amplifying medium is amplified using a pump amplifier prior to being introduced into the amplifying medium. In various embodiments, a cascaded Raman resonator is used as a pump booster source to provide Raman amplification of the pump power being supplied from one or more pump sources to the signal channel amplifying medium.Type: GrantFiled: March 3, 2000Date of Patent: February 5, 2002Assignee: Corvis CorporationInventors: Stephen G. Grubb, John J. Veselka, Jr., Donald M. Cornwell, Jr.
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Publication number: 20010028490Abstract: Optical transmission systems of the present invention include at least one optical amplifier generally including an optical signal amplifying medium supplied with pump power in the form of optical energy in via an optical pump source. The pump source includes multiple optical sources, at least two of which provide optical energy in first and second wavelength ranges separated by a frequency difference. The amplifier includes a wavelength controller configured to adjust the wavelength range of at least one of the optical sources to vary the frequency difference in a manner sufficient to vary optical intensity noise produced when the optical energy from the multiple optical sources is combined.Type: ApplicationFiled: March 2, 2001Publication date: October 11, 2001Inventors: David J. Copeland, John J. Veselka, Donald M. Cornwell, Thomas D. Stephens, Dean M. Smith, Mark A. Laliberte
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Patent number: 5963567Abstract: A light source for generating many precisely spaced wavelength channels, based on the periodic modulation of light. CW light is periodically amplitude modulated and then coupled to a non-linear fiber where it undergoes additional modulation by the process of self-phase modulation or other non-linear effects. In a general embodiment of the multi-wavelength source (MWS), an optical modulator driven by a periodic electromagnetic signal imposes periodic amplitude modulation on light from a single longitudinal mode CW laser. The light is then coupled to a non-linear medium with an intensity dependent refractive index where it generates higher order spectral sidebands by the process of self-phase modulation and/or other non-linear effects. The frequency spacing between the spectral components is equal to the repetition rate of the modulation. The shape of the spectrum (i.e.Type: GrantFiled: February 13, 1997Date of Patent: October 5, 1999Assignee: Lucent Technologies, Inc.Inventors: John J. Veselka, Steven K. Korotky
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Patent number: 5625722Abstract: A method and apparatus for converting a non-return-to-zero (NRZ) voltage data stream into an optical data stream in return-to-zero (RZ) format, is disclosed comprising supplying a continuous optical signal to a modulator, driving the modulator with an NRZ voltage data stream and encoding either the NRZ data stream or the electrical output of the receiver. The modulator can be an interferometer, such as a Mach-Zehnder interferometer, or a directional coupler, for example.Type: GrantFiled: December 21, 1994Date of Patent: April 29, 1997Assignee: Lucent Technologies Inc.Inventors: Nan M. Froberg, Alan H. Gnauck, Gregory Raybon, John J. Veselka
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Patent number: 5477375Abstract: An optical pulse generator for producing a soliton pulse train having a modulator which amplitude and phase modulates an optical frequency output of a continuous optical wave source. The modulator is driven by first and second harmonically related continuous sinusoidal waves from first and second CW voltage sources and the generator includes a pulse compression means for producing at the output of the generator a soliton pulse train.Type: GrantFiled: April 30, 1993Date of Patent: December 19, 1995Assignee: AT&T Corp.Inventors: Steven K. Korotky, John J. Veselka