Patents by Inventor Shane H. Woodside
Shane H. Woodside 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: 11726280Abstract: An opto-mechanical assembly includes a first thermal control element disposed on a region of a first section of an enclosure; a second thermal control element disposed on a region of a second section of the enclosure; and an optical element that includes a first portion and a second portion. The first thermal control element is configured to heat the first portion of the optical element and to cause the first portion of the optical element to be associated with a first temperature, and the second thermal control element is configured to heat the second portion of the optical element and to cause the second portion of the optical element to be associated with a second temperature. This causes a difference between the first temperature and the second temperature to satisfy a temperature difference threshold. Accordingly, this also causes a temperature gradient along an axis of the optical element to satisfy a temperature gradient threshold.Type: GrantFiled: June 24, 2021Date of Patent: August 15, 2023Assignee: Lumentum Operations LLCInventors: Roozbeh Ahmadi, Nenad Duricic, Shane H. Woodside, Doug Cross, Andrew Telford
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Patent number: 11726311Abstract: A micro-electro-mechanical system (MEMS) device may include a mirror structure suspended from a first hinge and a second hinge that are arranged to enable the mirror structure to be tilted about a tilt axis. The mirror structure may include a first actuator and a second actuator located on opposite sides of the tilt axis. The MEMS device may include a fixed electrode coupled to first actuator to cause the mirror structure to tilt about the tilt axis in a first direction based on a fixed voltage applied to the fixed electrode. The MEMS device includes a driving electrode coupled to the second actuator to cause the mirror structure to tilt about the tilt axis in a second direction opposite from the first direction based on a driving voltage applied to the driving electrode.Type: GrantFiled: November 30, 2020Date of Patent: August 15, 2023Assignee: Lumentum Operations LLCInventors: Gonzalo Wills, Wenlin Jin, Jason Blechta, Shane H. Woodside
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Patent number: 11686907Abstract: A pluggable optical module may include a substrate. The pluggable optical module may include a compressible sliding thermal interface disposed on the substrate to contact a riding heatsink. The compressible sliding thermal interface material may be compressed to fill interstices between a first surface of the substrate and a second surface of the riding heatsink. The compressible sliding thermal interface may protrude from the first surface of the substrate such that insertion of the pluggable optical module into a cage compresses the compressible sliding thermal interface to achieve a threshold thermal boundary resistance.Type: GrantFiled: July 15, 2022Date of Patent: June 27, 2023Assignee: Lumentum Operations LLCInventors: Roozbeh Ahmadi, Thomas Haslam, Shane H. Woodside
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Publication number: 20220350098Abstract: A pluggable optical module may include a substrate. The pluggable optical module may include a compressible sliding thermal interface disposed on the substrate to contact a riding heatsink. The compressible sliding thermal interface material may be compressed to fill interstices between a first surface of the substrate and a second surface of the riding heatsink. The compressible sliding thermal interface may protrude from the first surface of the substrate such that insertion of the pluggable optical module into a cage compresses the compressible sliding thermal interface to achieve a threshold thermal boundary resistance.Type: ApplicationFiled: July 15, 2022Publication date: November 3, 2022Inventors: Roozbeh AHMADI, Thomas HASLAM, Shane H. WOODSIDE
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Publication number: 20220326458Abstract: An opto-mechanical assembly includes a first thermal control element disposed on a region of a first section of an enclosure; a second thermal control element disposed on a region of a second section of the enclosure; and an optical element that includes a first portion and a second portion. The first thermal control element is configured to heat the first portion of the optical element and to cause the first portion of the optical element to be associated with a first temperature, and the second thermal control element is configured to heat the second portion of the optical element and to cause the second portion of the optical element to be associated with a second temperature. This causes a difference between the first temperature and the second temperature to satisfy a temperature difference threshold. Accordingly, this also causes a temperature gradient along an axis of the optical element to satisfy a temperature gradient threshold.Type: ApplicationFiled: June 24, 2021Publication date: October 13, 2022Inventors: Roozbeh AHMADI, Nenad DURICIC, Shane H. WOODSIDE, Doug CROSS, Andrew TELFORD
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Patent number: 11391899Abstract: A pluggable optical module may include a substrate. The pluggable optical module may include a compressible sliding thermal interface disposed on the substrate to contact a riding heatsink. The compressible sliding thermal interface material may be compressed to fill interstices between a first surface of the substrate and a second surface of the riding heatsink. The compressible sliding thermal interface may protrude from the first surface of the substrate such that insertion of the pluggable optical module into a cage compresses the compressible sliding thermal interface to achieve a threshold thermal boundary resistance.Type: GrantFiled: February 4, 2019Date of Patent: July 19, 2022Assignee: Lumentum Operations LLCInventors: Roozbeh Ahmadi, Thomas Haslam, Shane H. Woodside
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Publication number: 20220099958Abstract: A micro-electro-mechanical system (MEMS) device may include a mirror structure suspended from a first hinge and a second hinge that are arranged to enable the mirror structure to be tilted about a tilt axis. The mirror structure may include a first actuator and a second actuator located on opposite sides of the tilt axis. The MEMS device may include a fixed electrode coupled to first actuator to cause the mirror structure to tilt about the tilt axis in a first direction based on a fixed voltage applied to the fixed electrode. The MEMS device includes a driving electrode coupled to the second actuator to cause the mirror structure to tilt about the tilt axis in a second direction opposite from the first direction based on a driving voltage applied to the driving electrode.Type: ApplicationFiled: November 30, 2020Publication date: March 31, 2022Inventors: Gonzalo WILLS, Wenlin JIN, Jason BLECHTA, Shane H. WOODSIDE
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Patent number: 10637581Abstract: An optical channel monitor (OCM) may include a modulator to provide a modulation signal and a local oscillator (LO) to provide a modulated LO signal. The modulated LO signal may be created by modulating an LO signal based on the modulation signal. The OCM may include a mixer to generate a pair of mixed optical signals. The pair of mixed optical signals may be generated based on mixing the modulated LO signal and an input optical signal. The OCM may include an optical detector to provide, based on the pair of mixed optical signals, a first electrical signal corresponding to a coherent mixture of the input optical signal and the modulated LO signal. The OCM may include a synchronous demodulator to provide, based on the first electrical signal and the modulation signal, a second electrical signal representative of the optical power spectrum of the input optical signal.Type: GrantFiled: March 12, 2019Date of Patent: April 28, 2020Assignee: Lumentum Operations LLCInventors: Shane H. Woodside, Jiamin Zheng
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Publication number: 20190296824Abstract: An optical channel monitor (OCM) may include a modulator to provide a modulation signal and a local oscillator (LO) to provide a modulated LO signal. The modulated LO signal may be created by modulating an LO signal based on the modulation signal. The OCM may include a mixer to generate a pair of mixed optical signals. The pair of mixed optical signals may be generated based on mixing the modulated LO signal and an input optical signal. The OCM may include an optical detector to provide, based on the pair of mixed optical signals, a first electrical signal corresponding to a coherent mixture of the input optical signal and the modulated LO signal. The OCM may include a synchronous demodulator to provide, based on the first electrical signal and the modulation signal, a second electrical signal representative of the optical power spectrum of the input optical signal.Type: ApplicationFiled: March 12, 2019Publication date: September 26, 2019Inventors: Shane H. WOODSIDE, Jiamin ZHENG
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Publication number: 20190243080Abstract: A pluggable optical module may include a substrate. The pluggable optical module may include a compressible sliding thermal interface disposed on the substrate to contact a riding heatsink. The compressible sliding thermal interface material may be compressed to fill interstices between a first surface of the substrate and a second surface of the riding heatsink. The compressible sliding thermal interface may protrude from the first surface of the substrate such that insertion of the pluggable optical module into a cage compresses the compressible sliding thermal interface to achieve a threshold thermal boundary resistance.Type: ApplicationFiled: February 4, 2019Publication date: August 8, 2019Inventors: Roozbeh AHMADI, Thomas Haslam, Shane H. Woodside
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Patent number: 9941955Abstract: A method may include receiving, by a switching engine, an optical signal that includes a channel. The method may include applying, by the switching engine, a first beam steering grating to direct a first portion of the channel to a first output port. The method may include applying, by the switching engine, one or more second beam steering gratings to direct at least one of a second portion of the channel to a second output port, or a third portion of the channel to a photodetector. The third portion may be approximately less, in power, than 10 percent of the channel.Type: GrantFiled: April 24, 2016Date of Patent: April 10, 2018Assignee: Lumentum Operations LLCInventors: Ian Breukelaar, Yi Liang, Shane H. Woodside, Barrie Keyworth, Wayne Bonnet, Peter David Roorda, Brandon C. Collings, Brian Smith
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Publication number: 20160315697Abstract: A method may include receiving, by a switching engine, an optical signal that includes a channel. The method may include applying, by the switching engine, a first beam steering grating to direct a first portion of the channel to a first output port. The method may include applying, by the switching engine, one or more second beam steering gratings to direct at least one of a second portion of the channel to a second output port, or a third portion of the channel to a photodetector. The third portion may be approximately less, in power, than 10 percent of the channel.Type: ApplicationFiled: April 24, 2016Publication date: October 27, 2016Inventors: Ian BREUKELAAR, Yi LIANG, Shane H. WOODSIDE, Barrie KEYWORTH, Wayne BONNET, Peter David ROORDA, Brandon C. COLLINGS, Brian SMITH
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Patent number: 8699024Abstract: A tunable optical filter is disclosed having an input port, a beam translator for translating input and output optical beams, an element having optical power for collimating the translated beam, a reflective wavelength dispersive element, and an output port. The beam translator can include a tiltable MEMS mirror coupled to an angle-to-offset optical element. An output port can be extended into a plurality of egress ports, each receiving a fraction of the scanned optical spectrum. A multi-path scanning optical spectrometer can be used as an optical channel monitor for monitoring performance of a wavelength selective switch, or for other tasks.Type: GrantFiled: August 23, 2011Date of Patent: April 15, 2014Assignee: JDS Uniphase CorporationInventors: Paul Colbourne, Shane H. Woodside, Oleg Bouevitch
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Publication number: 20130050697Abstract: A tunable optical filter is disclosed having an input port, a beam translator for translating input and output optical beams, an element having optical power for collimating the translated beam, a reflective wavelength dispersive element, and an output port. The beam translator can include a tiltable MEMS mirror coupled to an angle-to-offset optical element. An output port can be extended into a plurality of egress ports, each receiving a fraction of the scanned optical spectrum. A multi-path scanning optical spectrometer can be used as an optical channel monitor for monitoring performance of a wavelength selective switch, or for other tasks.Type: ApplicationFiled: August 23, 2011Publication date: February 28, 2013Inventors: Paul COLBOURNE, Shane H. Woodside, Oleg Bouevitch
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Patent number: 6983090Abstract: A high-resolution tunable optical filter uses a dispersive element in a double pass configuration. The double pass configuration is provided by a reflective quarter-wave plate that conveniently reduces polarization dispersion loss (PDL) of the filter. The filter also includes a fibre tube for supporting an input optical fibre and an output optical fibre, and a lens having an optical axis, which is disposed such that a focal point thereof is substantially at one of the input and output optical fibres. To provide increase resolution the filter is tuned by rotating the reflective quarter-wave plate. To provide high power capabilities the fibre jackets of the input and output fibres are optionally stripped back. To provide a symmetrical spectral response the fibre tube is optionally mounted at an angle to the optical axis of the lens.Type: GrantFiled: March 11, 2003Date of Patent: January 3, 2006Assignee: JDS Uniphase Inc.Inventors: John Weber, Xiang Zhu, Shane H. Woodside
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Patent number: 6940588Abstract: A system for determining response characteristics, insertion loss and group delay, of an optical component by applying a sweeping wavelength optical signal that is modulated with an RF signal, measuring the insertion loss and group delay at a series of wavelengths and correlating the measurements to wavelengths. A method for synthesis of an effective modulation frequency in determining the group delay response characteristics of an optical component by obtaining a series of measurements over a sample optical spectrum using a given modulation frequency and calculating a weighted average of the group delays in the series of measurements giving a result substantially equivalent to a measurement taken using a modulation frequency equal to the effective modulation frequency.Type: GrantFiled: January 31, 2003Date of Patent: September 6, 2005Assignee: JDS Uniphase Inc.Inventors: Shane H. Woodside, Yi Liang, Thomas Friessnegg, Paul Colbourne
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Publication number: 20030179990Abstract: A high-resolution tunable optical filter uses a dispersive element in a double pass configuration. The double pass configuration is provided by a reflective quarter-wave plate that conveniently reduces polarization dispersion loss (PDL) of the filter. The filter also includes a fibre tube for supporting an input optical fibre and an output optical fibre, and a lens having an optical axis, which is disposed such that a focal point thereof is substantially at one of the input and output optical fibres. To provide increase resolution the filter is tuned by rotating the reflective quarter-wave plate. To provide high power capabilities the fibre jackets of the input and output fibres are optionally stripped back. To provide a symmetrical spectral response the fibre tube is optionally mounted at an angle to the optical axis of the lens.Type: ApplicationFiled: March 11, 2003Publication date: September 25, 2003Inventors: John Weber, Xiang Zhu, Shane H. Woodside
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Publication number: 20030147067Abstract: A system for determining response characteristics, insertion loss and group delay, of an optical component by applying a sweeping wavelength optical signal that is modulated with an RF signal, measuring the insertion loss and group delay at a series of wavelengths and correlating the measurements to wavelengths. A method for synthesis of an effective modulation frequency in determining the group delay response characteristics of an optical component by obtaining a series of measurements over a sample optical spectrum using a given modulation frequency and calculating a weighted average of the group delays in the series of measurements giving a result substantially equivalent to a measurement taken using a modulation frequency equal to the effective modulation frequency.Type: ApplicationFiled: January 31, 2003Publication date: August 7, 2003Inventors: Shane H. Woodside, Yi Liang, Thomas Friessnegg, Paul Colbourne
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Patent number: 6462863Abstract: A system and method for resolving polarization mode dispersion (PMD) in a span of optical fiber is described. The method involves three main stages: (1) launch two co-polarized optical signals to generate respective four-wave mixing product fields at the Stokes wavelength &lgr;S or the anti-Stokes wavelength &lgr;A sequentially in each part of the fiber to calculate chromatic dispersion; (2) repeatedly launch two optical signals at various states of polarization (SOP) using methods of stage (1) to calculate overall dispersion (i.e., a combination of chromatic dispersion and PMD); and (3) resolve from the overall dispersion calculated at stage (2) the PMD based on the known chromatic dispersion calculated at stage (1). In an ideal case, the PMD can be calculated from two separate measurements at different co-polarized states of polarization, where group velocity is calculated from a measured dispersion map, as a function of wavelength, at the SOPs and the difference is calculated to resolve PMD.Type: GrantFiled: July 11, 2001Date of Patent: October 8, 2002Assignee: JDS Uniphase Inc.Inventors: Ahmad K. Atieh, Yi Liang, Shane H. Woodside
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Patent number: 5588077Abstract: An especially compact optical rotary joint for use with fiber optic cables is set forth including three embodiments capable of transferring two data streams each carried on a separate optical fiber. The rotary joint is constructed with a stationary portion and a relatively rotating portion. The two optical fiber channels are arranged in-line along the same rotational axis. Isolation of one channel from the other is achieved through a novel application of gradient index rod lenses of suitable pitch. A pair of lenses is arranged adjacent each other on each side of the rotational interface and a second pair of axially aligned lenses is arranged outboard of the first pair. An optical signal from one of the outboard lenses can be directed to one of the other lenses depending on the pitch selection. Losses due to crosstalk or overlap of the signal paths is within acceptable limits. Both channels are bidirectional, i.e., each can carry signals in either direction.Type: GrantFiled: May 22, 1995Date of Patent: December 24, 1996Assignee: Focal Technologies, Inc.Inventor: Shane H. Woodside