Integrated optics reflectometer

Couch, Philip R.; Murphy, Kent A.; Gunther, Michael F.; Gause, Charles B.

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Title: Integrated optics reflectometer

Abstract

An apparatus includes a laser source configured to output laser light at a target frequency, and a measurement unit configured to measure a deviation between an actual frequency outputted by the laser source at a current period of time and the target frequency of the laser source. The apparatus includes a feedback control unit configured to, based on the measured deviation between the actual and target frequencies, control the laser source to maintain a constant frequency of laser output from the laser source so that the frequency of laser light transmitted from the laser source is adjusted to the target frequency. The feedback control unit can control the laser source to maintain a linear rate of change in the frequency of its laser light output, and compensate for characteristics of the measurement unit utilized for frequency measurement. A method is provided for performing the feedback control of the laser source.

Inventors:: Couch, Philip R.; Murphy, Kent A.; Gunther, Michael F.; Gause, Charles B.

Issue Date:: Tue Jan 31 00:00:00 EST 2017

Research Org.:: AxonOptics LLC, Harrisonburg, VA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1341892

Patent Number(s):: 9557243

Application Number:: 14/944,315

Assignee:: AxonOptics LLC (Harrisonburg, VA)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT

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G - PHYSICS G01 - MEASURING G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
G01M11/31 - {with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers}
G01M11/3172 - {Reflectometers detecting the back-scattered light in the frequency-domain, e.g. OFDR, FMCW, heterodyne detection}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
H01S3/1305 - {Feedback control systems}
H01S5/0687 - Stabilising the frequency of the laser
H01S5/12 - the resonator having a periodic structure, e.g. in distributed feed-back [DFB] lasers

Show less

Resource Type:: Patent

Resource Relation:: Patent File Date: 2015 Nov 18

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Couch, Philip R., Murphy, Kent A., Gunther, Michael F., and Gause, Charles B. Integrated optics reflectometer.  United States: N. p., 2017. 
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                    Couch, Philip R., Murphy, Kent A., Gunther, Michael F., & Gause, Charles B. Integrated optics reflectometer.  United States.

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                    Couch, Philip R., Murphy, Kent A., Gunther, Michael F., and Gause, Charles B. Tue .  
        "Integrated optics reflectometer".  United States.  https://www.osti.gov/servlets/purl/1341892.

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@article{osti_1341892,

  title        = {Integrated optics reflectometer},

  author       = {Couch, Philip R. and Murphy, Kent A. and Gunther, Michael F. and Gause, Charles B.},

  abstractNote = {An apparatus includes a laser source configured to output laser light at a target frequency, and a measurement unit configured to measure a deviation between an actual frequency outputted by the laser source at a current period of time and the target frequency of the laser source. The apparatus includes a feedback control unit configured to, based on the measured deviation between the actual and target frequencies, control the laser source to maintain a constant frequency of laser output from the laser source so that the frequency of laser light transmitted from the laser source is adjusted to the target frequency. The feedback control unit can control the laser source to maintain a linear rate of change in the frequency of its laser light output, and compensate for characteristics of the measurement unit utilized for frequency measurement. A method is provided for performing the feedback control of the laser source.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jan 31 00:00:00 EST 2017},

  month        = {Tue Jan 31 00:00:00 EST 2017}

}

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Works referenced in this record:

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Froggatt, Mark E.; Seeley, Ryan; Gifford, Dawn K.
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Similar Records

Title: Integrated optics reflectometer

Abstract

Citation Formats

High resolution interferometric optical frequency domain reflectometry (OFDR) beyond the laser coherence length patent, April 2009

Large Electrocaloric Effect in Ferroelectric Polymers Near Room Temperature journal, August 2008

Procedure and means for configuring a measuring device patent, December 2002

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Thermoelectric refrigeration material and method of making the same patent, March 1994

External cavity wavelength tunable laser device and optical output module patent, March 2012

Optical reflectometry and optical reflectometer patent, April 2012

Optical return loss detecting device patent, June 2007

Spectrometer for identifying analyte materials patent, January 2013

Fluorometer detection system patent, June 1994

Laser frequency stabilizer using transient spectral hole burning patent, November 2003

Optical frequency domain reflectometry with a narrow linewidth fiber laser journal, July 2000

Optical laser control for optical communications systems patent, September 2010

Locking of a laser to an optical interferometer that is stabilized to a reference frequency patent, December 2012

Electrocaloric Materials for Solid-State Refrigeration journal, May 2009

Compensating for time varying phase changes in interferometric measurements patent, August 2011

Method of tuning integrated laser sources with integrated wavelength tuning elements on the same substrate or in a monolithic photonic integrated circuit (PIC) patent, August 2006

Optical amplifier provided with control function of pumping light, and optical transmission system using the same patent, November 2011

Frequency locking of tunable lasers by using a birefringent optical cavity patent, December 2003

Carrier control loop for a receiver of digitally transmitted signals patent, April 2001

High resolution interferometric optical frequency domain reflectometry (OFDR) beyond the laser coherence length
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Large Electrocaloric Effect in Ferroelectric Polymers Near Room Temperature
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Procedure and means for configuring a measuring device
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Optical frequency domain reflectometer for use as an optical fiber testing device
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Programmable frequency reference for laser frequency stabilization, and arbitrary optical clock generator, using persistent spectral hole burning
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Thermoelectric refrigeration material and method of making the same
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External cavity wavelength tunable laser device and optical output module
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patent, April 2012

Optical return loss detecting device
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Fluorometer detection system
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Laser frequency stabilizer using transient spectral hole burning
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Optical frequency domain reflectometry with a narrow linewidth fiber laser
journal, July 2000

Optical laser control for optical communications systems
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Locking of a laser to an optical interferometer that is stabilized to a reference frequency
patent, December 2012

Electrocaloric Materials for Solid-State Refrigeration
journal, May 2009

Compensating for time varying phase changes in interferometric measurements
patent, August 2011

Method of tuning integrated laser sources with integrated wavelength tuning elements on the same substrate or in a monolithic photonic integrated circuit (PIC)
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patent, November 2011

Frequency locking of tunable lasers by using a birefringent optical cavity
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