Design of a free-space image-relay optical time-domain reflectometer to measure fiber-optic time delays at inertial confinement fusion relevant wavelengths

Filkins, Timothy; Katz, Joseph

doi:10.1117/12.2528806

Title: Design of a free-space image-relay optical time-domain reflectometer to measure fiber-optic time delays at inertial confinement fusion relevant wavelengths

Abstract

Fiber optics are an integral part of data collection, often used to transport visible and UV light to streaked spectrometers and photodetectors. Precisely measuring fiber-optic time delay (FOTD) is necessary for absolute data timing or fiber replacement. An optical time domain reflectometer (OTDR) can be used to measure the fiber-optic time delay. Commercial OTDR’s measure only the fiber in telecommunications wavelengths in the IR. To measure fibers at relevant wavelengths for inertial confinement fusion experiments, a solution using a free-space image relay was devised at the University of Rochester’s Laboratory for Laser Energetics (LLE), where readily available equipment has been used to measure the FOTD to within 2 ps at 526.5 nm as well as 351 nm, which is an order of magnitude better than the timing jitter between LLE’s Hardware Timing System and second-harmonic (526.5-nm) fiducial laser pulses.

Authors:

Filkins, Timothy ^[1]; Katz, Joseph ^[1]

Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics

Publication Date:: Mon Sep 09 00:00:00 EDT 2019

Research Org.:: Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

Contributing Org.:: Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics

OSTI Identifier:: 1568764

Grant/Contract Number:: NA0003856

Resource Type:: Accepted Manuscript

Journal Name:: Proceedings of SPIE - The International Society for Optical Engineering

Additional Journal Information:: Journal Volume: 11114; Conference: SPIE Optical Engineering and Applications, San Diego, CA (United States), 11-15 Aug 2019; Journal ID: ISSN 0277-786X

Publisher:: SPIE

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION; Timing; fiber optic; inertial confinement fusion (ICF); optical; visible; ultraviolet (UV); graded index fiber; diagnostics; photodiode; photodetector

Citation Formats


                    Filkins, Timothy, and Katz, Joseph. Design of a free-space image-relay optical time-domain reflectometer to measure fiber-optic time delays at inertial confinement fusion relevant wavelengths.  United States: N. p., 2019. 
Web.  doi:10.1117/12.2528806.

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                    Filkins, Timothy, & Katz, Joseph. Design of a free-space image-relay optical time-domain reflectometer to measure fiber-optic time delays at inertial confinement fusion relevant wavelengths.  United States.  https://doi.org/10.1117/12.2528806

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                    Filkins, Timothy, and Katz, Joseph. Mon .  
"Design of a free-space image-relay optical time-domain reflectometer to measure fiber-optic time delays at inertial confinement fusion relevant wavelengths".  United States.  https://doi.org/10.1117/12.2528806.  https://www.osti.gov/servlets/purl/1568764.

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@article{osti_1568764,

  title        = {Design of a free-space image-relay optical time-domain reflectometer to measure fiber-optic time delays at inertial confinement fusion relevant wavelengths},

  author       = {Filkins, Timothy and Katz, Joseph},

  abstractNote = {Fiber optics are an integral part of data collection, often used to transport visible and UV light to streaked spectrometers and photodetectors. Precisely measuring fiber-optic time delay (FOTD) is necessary for absolute data timing or fiber replacement. An optical time domain reflectometer (OTDR) can be used to measure the fiber-optic time delay. Commercial OTDR’s measure only the fiber in telecommunications wavelengths in the IR. To measure fibers at relevant wavelengths for inertial confinement fusion experiments, a solution using a free-space image relay was devised at the University of Rochester’s Laboratory for Laser Energetics (LLE), where readily available equipment has been used to measure the FOTD to within 2 ps at 526.5 nm as well as 351 nm, which is an order of magnitude better than the timing jitter between LLE’s Hardware Timing System and second-harmonic (526.5-nm) fiducial laser pulses.},

  doi          = {10.1117/12.2528806},

  journal      = {Proceedings of SPIE - The International Society for Optical Engineering},

  number       = ,

  volume       = 11114,

  place        = {United States},

  year         = {Mon Sep 09 00:00:00 EDT 2019},

  month        = {Mon Sep 09 00:00:00 EDT 2019}

}

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Works referenced in this record:

Position measurement with a resolution and noise‐limited instrument
journal, June 1986

Bobroff, Norman
Review of Scientific Instruments, Vol. 57, Issue 6
DOI: 10.1063/1.1138619

Parameter estimation in X-ray astronomy
journal, August 1976

Lampton, M.; Margon, B.; Bowyer, S.
The Astrophysical Journal, Vol. 208
DOI: 10.1086/154592

The light acceptance angle of a graded index fibre
journal, March 1975

Matsumura, H.
Optical and Quantum Electronics, Vol. 7, Issue 2
DOI: 10.1007/BF00631588

Backscatter measurements for NIF ignition targets (invited)
journal, October 2010

Moody, J. D.; Datte, P.; Krauter, K.
Review of Scientific Instruments, Vol. 81, Issue 10
DOI: 10.1063/1.3491035

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Title: Design of a free-space image-relay optical time-domain reflectometer to measure fiber-optic time delays at inertial confinement fusion relevant wavelengths

Abstract

Citation Formats

Position measurement with a resolution and noise‐limited instrument journal, June 1986

Parameter estimation in X-ray astronomy journal, August 1976

The light acceptance angle of a graded index fibre journal, March 1975

Backscatter measurements for NIF ignition targets (invited) journal, October 2010

Position measurement with a resolution and noise‐limited instrument
journal, June 1986

Parameter estimation in X-ray astronomy
journal, August 1976

The light acceptance angle of a graded index fibre
journal, March 1975

Backscatter measurements for NIF ignition targets (invited)
journal, October 2010