Dr. Jeffrey W. Nicholson Profile

Dr. Jeffrey W. Nicholson

Senior Engineering Manager at OFS Fitel LLC

SPIE Involvement:

Conference Program Committee | Author

Publications (33)

Proceedings Article | 11 April 2024 Presentation

Increasing the TMI threshold in fiber lasers for directed-energy applications

Jeff Nicholson

Proceedings Volume PC12939, PC129390M (2024) https://doi.org/10.1117/12.3013083

KEYWORDS: Fiber lasers, Laser damage threshold, Raman scattering, Quantum limits, Pulse signals, Laser systems engineering, High power lasers, High power fiber lasers, Directed energy weapons, Signal attenuation

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Proceedings Article | 12 March 2024 Presentation + Paper

S2 mode content measurement of a 7+1 to 1 backward pump-signal combiner

L. Bansal, R. Sienkowski, C. Neale, J. Mann, J. Nicholson

Proceedings Volume 12866, 1286604 (2024) https://doi.org/10.1117/12.3003085

KEYWORDS: Beam combiners, Fiber amplifiers, Single mode fibers, Signal attenuation, Image processing, Fourier transforms, Structured optical fibers

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Proceedings Article | 12 March 2024 Presentation + Paper

2mJ pulse energy, 420kW peak power, all-fiber amplifier with diffraction-limited beam quality

Yaakov Glick, Jose Pincha, Ishu Kansal, Robert Windeler, Vasiliy Lukonin, Eric Monberg, Erin Lamb, Jeffrey Nicholson

Proceedings Volume 12865, 1286516 (2024) https://doi.org/10.1117/12.3001679

KEYWORDS: Diffraction limit, Fiber amplifiers, High power fiber lasers, Pulsed fiber lasers

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Proceedings Article | 12 March 2024 Presentation + Paper

5.2 kW single-mode output power from a Yb 20/400 fiber with reduced thermo-optic coefficient

A. Rosales-García, R. Jensen, P. Kristensen, J. Nicholson, S. Ovtar, M. Mitrovic, K. Ingerslev, B. Edvold, S. Christensen, J. Pincha, D. DiGiovanni, B. Pálsdóttir

Proceedings Volume 12865, 128650D (2024) https://doi.org/10.1117/12.3003763

KEYWORDS: Ytterbium, Fiber lasers, Transverse mode instability, Thermal optics, Cladding, Absorption, Laser applications, Diffraction limit

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Proceedings Article | 12 March 2024 Presentation + Paper

Single-frequency erbium-doped fiber amplifier with high energy gain at low repetition rates

Venkatapuram Sudarshanam, Cang Jin, Jeffrey Nicholson

Proceedings Volume 12865, 1286507 (2024) https://doi.org/10.1117/12.2688232

KEYWORDS: Pulse signals, Fiber amplifiers, Fiber lasers, Single mode fibers, Continuous wave operation, LIDAR, Coherent optics, Erbium, Polarization maintaining fibers

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Proceedings Article | 17 March 2023 Presentation + Paper

6 kW power handling in a 7+1 to 1 pump-signal combiner

L. Bansal, J. Pincha, R. Sienkowski, C. Neale, J. Mann, J. Nicholson

Proceedings Volume 12402, 1240207 (2023) https://doi.org/10.1117/12.2649274

KEYWORDS: Beam combiners, Diodes, Thermal efficiency, Signal attenuation, Fiber amplifiers, Temperature metrology, Structured optical fibers, Laser systems engineering

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Proceedings Article | 8 March 2023 Presentation + Paper

5 kW single-mode output power from Yb-doped fibers with increased higher-order mode loss

Jeffrey Nicholson, Jose Pincha, Ishu Kansal, Robert Windeler, Eric Monberg, Vasiliy Lukonin, Anand Hariharan, Gregory Williams, Andrea Rosales-Garcia, Lalitkumar Bansal, David DiGiovanni

Proceedings Volume 12400, 1240002 (2023) https://doi.org/10.1117/12.2649969

KEYWORDS: Absorption, Raman spectroscopy, Fiber lasers, Raman scattering, High power fiber lasers, Cladding, Beam combiners, Quantum limits, Quantum experiments, Laser systems engineering

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Proceedings Article | 8 March 2023 Presentation + Paper

Long term, stable, 115W output from an erbium fiber amplifier pumped by a Raman fiber laser

Andrew Grimes, Venkatapuram Sudarshanam, Anand Hariharan, Jeffrey Nicholson

Proceedings Volume 12400, 124001E (2023) https://doi.org/10.1117/12.2650430

KEYWORDS: Free space optical communications, Wavelength division multiplexing, Optical amplifiers, Fiber lasers, Satellites, Optical filters, Transmitters, Fiber amplifiers, Erbium

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Proceedings Article | 8 March 2023 Presentation + Paper

Performance of 915 nm pumped LMA Yb fiber designs for long-term reliable multi-kilowatt operation

A. Rosales-García, R. Jensen, K. Ingerslev, B. Edvold, P. Kristensen, S. Ovtar, S. Adsersen, J. Nicholson, R. Windeler, D. DiGiovanni, B. Pálsdóttir

Proceedings Volume 12400, 1240003 (2023) https://doi.org/10.1117/12.2649286

KEYWORDS: Ytterbium, Fiber lasers, Transverse mode instability, High power fiber amplifiers, Fiber amplifiers, High power fiber lasers

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Proceedings Article | 4 March 2022 Presentation + Paper

High-power, high-efficiency, semi-random Raman fiber lasers

Andrew Grimes, Anand Hariharan, Ian Sun, Jeffrey Nicholson

Proceedings Volume 11981, 119810J (2022) https://doi.org/10.1117/12.2615035

KEYWORDS: Raman spectroscopy, Fiber lasers, Wavelength division multiplexing, Scattering, Reflectors, Rayleigh scattering, Optical filters, Optical amplifiers, Fiber Bragg gratings, Resonators

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Proceedings Article | 4 March 2022 Presentation + Paper

Next generation Yb-doped fibers for high-power, narrow-linewidth lasers

J. Nicholson, A. DeSantolo, R. Windeler, E. Monberg, V. Lukonin, J. Pincha, A. Hariharan, X. Xu, G. Williams, Z. Goldberg, A. Rosales-Garcia, P. Kristensen, D. Knight, D. DiGiovanni

Proceedings Volume 11981, 119810R (2022) https://doi.org/10.1117/12.2614611

KEYWORDS: Optical fibers, Fiber lasers, Prototyping, Optical amplifiers, Fiber amplifiers, Signal attenuation, Modulation, Diodes, Cladding, Ytterbium

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Proceedings Article | 4 March 2022 Presentation + Paper

Photodarkening-free fiber laser based on Yb-doped 20/400 gain fiber

A. Rosales-Garcia, R. Jensen, S. Ovtar, K. Ingerslev, B. Edvold, P. Kristensen, J. Nicholson, D. DiGiovanni, B. Pálsdóttir

Proceedings Volume 11981, 119810W (2022) https://doi.org/10.1117/12.2614616

KEYWORDS: Ytterbium, Fiber lasers, Diodes, Absorption, Optical amplifiers, Fiber amplifiers, Signal attenuation, System integration, Photodiodes

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Proceedings Article | 5 March 2021 Presentation + Paper

Progress on high power Raman fiber lasers at 1.48 and 1.7 µm

Andrew Grimes, Anand Hariharan, Jeffrey Nicholson

Proceedings Volume 11665, 116650P (2021) https://doi.org/10.1117/12.2583068

KEYWORDS: Raman spectroscopy, Fiber lasers, Absorption, Tissues, Thulium, Therapeutics, Scattering, Resonators, Polymers, Optical filters

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Proceedings Article | 2 March 2020 Paper

Time-stretched all-fiber supercontinuum source for spectroscopy

Philip Westergaard, Poul Kristensen, Jeffrey Nicholson, Bera Palsdottir

Proceedings Volume 11265, 112650B (2020) https://doi.org/10.1117/12.2544855

KEYWORDS: Spectroscopy, Dispersion, Light sources, Supercontinuum sources, Optical coherence tomography, Sensors, Near infrared spectroscopy, Near infrared, Ultrafast phenomena, Pulsed laser operation

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Proceedings Article | 21 February 2020 Paper

Compact all-fiber supercontinuum source with high stability

Philip Westergaard, Jeffrey Nicholson, Bera Palsdottir

Proceedings Volume 11260, 112600R (2020) https://doi.org/10.1117/12.2544843

KEYWORDS: Light sources, Spectroscopy, Interferometers, Supercontinuum sources, Oscillators, Femtosecond phenomena, Optical coherence tomography, Mode locking, Fiber lasers, Near infrared spectroscopy

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Proceedings Article | 21 February 2020 Presentation + Paper

Hundred-watt CW and Joule level pulsed output from Raman fiber laser in 1.7-μm band

Andrew Grimes, Anand Hariharan, Yingzhi Sun, Simona Ovtar, Poul Kristensen, Philip Westergaard, Steven Rako, Cory Baumgarten, Robert Stoneman, Jeffrey Nicholson

Proceedings Volume 11260, 112601S (2020) https://doi.org/10.1117/12.2545034

KEYWORDS: Optical filters, Fiber lasers, Raman scattering, Fiber Bragg gratings, Scattering, Continuous wave operation, Absorption, Solids, Pulsed laser operation

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Proceedings Article | 26 February 2018 Presentation + Paper

Cladding pumped Yb-doped HOM power amplifier with high gain

Kazi S. Abedin, Raja Ahmad, Anthony DeSantolo, Jeffrey Nicholson, Paul Westbrook, Clifford Headley, David DiGiovanni

Proceedings Volume 10512, 105121E (2018) https://doi.org/10.1117/12.2290523

KEYWORDS: Cladding, Amplifiers, Optical fibers, Fiber amplifiers, Optical amplifiers, Ytterbium, Absorption, Numerical simulations, Light wave propagation, Numerical modeling

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Proceedings Article | 26 February 2018 Presentation + Paper

Polarization-maintaining performance of large effective area, higher order modes fiber in a coiled configuration

Raja Ahmad, Jeffrey Nicholson, Kazi Abedin, Paul Westbrook, Clifford Headley, Patrick Wisk, Eric Monberg, Man Yan, David DiGiovanni

Proceedings Volume 10512, 105121Q (2018) https://doi.org/10.1117/12.2290484

KEYWORDS: Birefringence, Polarization, Waveguides, Polarizers, Surgery, Structured optical fibers, Cladding, Glasses, Fiber characterization, Near field

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Proceedings Article | 26 February 2018 Presentation + Paper

Kilo-Watt high-power Yb fiber laser at 1117 nm

Venkatapuram Sudarshanam, Kazi Abedin, Jeffrey Nicholson, Clifford Headley, David DiGiovanni

Proceedings Volume 10512, 105120D (2018) https://doi.org/10.1117/12.2290333

KEYWORDS: High power fiber amplifiers, Ytterbium, Fiber lasers, Oscillators, Amplifiers, Laser resonators, High power fiber lasers, Harmonic generation

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Proceedings Article | 20 February 2018 Presentation + Paper

Fiber-based laser MOPA transmitter packaging for space environment

Mark Stephen, Anthony Yu, Jeffrey Chen, Kenji Numata, Stewart Wu, Brayler Gonzales, Lawrence Han, Molly Fahey, Michael Plants, Michael Rodriguez, Graham Allan, James Abshire, Jeffrey Nicholson, Anand Hariharan, William Mamakos, Brian Bean

Proceedings Volume 10513, 1051308 (2018) https://doi.org/10.1117/12.2290720

KEYWORDS: Fiber amplifiers, Optical amplifiers, Fiber lasers, Transmitters, Packaging, Pulsed laser operation, LIDAR

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Proceedings Article | 22 February 2017 Presentation + Paper

115 W, 10 GHz, femtosecond pulses from a very-large-mode-area Er-doped fiber amplifier

J. Nicholson, R. Ahmad, A. DeSantolo, Z. Várallyay

Proceedings Volume 10083, 100831L (2017) https://doi.org/10.1117/12.2250917

KEYWORDS: Femtosecond phenomena, Fiber amplifiers, Fiber lasers, Erbium, Femtosecond fiber lasers, Picosecond phenomena, Raman spectroscopy, Quenching (fluorescence), Photonic crystals, Step index fibers, Amplifiers, Absorption, Single mode fibers, Optical amplifiers

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Proceedings Article | 22 February 2017 Presentation + Paper

High energy 1.5 µm 3-color pulsed fiber laser with high coherence length and precise wavelength control for LIDAR applications

Joseph Zarrabi, Anand Hariharan, A. DeSantolo, J. Nicholson

Proceedings Volume 10083, 100831K (2017) https://doi.org/10.1117/12.2252564

KEYWORDS: Fiber lasers, Fiber amplifiers, Pulsed fiber lasers, LIDAR, Laser development, Polarization, Raman spectroscopy, Laser scattering, Collimation, Diodes

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Proceedings Article | 1 September 2015 Paper

Fiber-based, trace-gas, laser transmitter technology development for space

Mark Stephen, Anthony Yu, Jeffrey Chen, Jeffrey Nicholson, Doruk Engin, Brian Mathason, Stewart Wu, Graham Allan, William Hasselbrack, Brayler Gonzales, Lawrence Han, Kenji Numata, Mark Storm, James Abshire

Proceedings Volume 9612, 96120B (2015) https://doi.org/10.1117/12.2191395

KEYWORDS: Transmitters, Optical amplifiers, Fiber amplifiers, Carbon dioxide lasers, Laser applications, Carbon dioxide, Laser development, Fiber lasers, Aerospace engineering, LIDAR

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Proceedings Article | 4 March 2015 Paper

A higher-order mode fiber amplifier with an axicon for output mode conversion

J. Nicholson, J. Fini, Anthony DeSantolo, P. Westbrook, R. Windeler, T. Kremp, C. Headley, D. DiGiovanni

Proceedings Volume 9344, 93441V (2015) https://doi.org/10.1117/12.2077679

KEYWORDS: Axicons, Fiber amplifiers, Binary data, Optical amplifiers, Fiber lasers, Fusion splicing, Diffraction, Amplifiers, High power fiber lasers, Fiber couplers

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Proceedings Article | 7 March 2014 Paper

Fibers design with a bend-compensated cladding for distributed wavelength filtering

John Fini, Jeffrey Nicholson

Proceedings Volume 8961, 89610S (2014) https://doi.org/10.1117/12.2038631

KEYWORDS: Cladding, Signal attenuation, Optical filters, Raman spectroscopy, Optical fibers, Nonlinear filtering, Raman scattering, Fiber lasers, Electronic filtering, Interference (communication)

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Proceedings Article | 22 March 2013 Paper

High efficiency cascaded Raman fiber laser with output power of 204W at 1480 nm

V. Supradeepa, Jeffrey Nicholson, Clifford Headley, Man Yan, Bera Palsdottir, Dan Jakobsen

Proceedings Volume 8601, 860106 (2013) https://doi.org/10.1117/12.2002620

KEYWORDS: Raman spectroscopy, Fiber lasers, Quantum efficiency, Quantum cascade lasers, Optical filters, Resonators, Fiber amplifiers, Raman scattering, Ytterbium, Wavelength division multiplexing

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Proceedings Article | 27 February 2012 Paper

Cascaded Raman fiber laser at 1480 nm with output power of 104 W

V. Supradeepa, Jeffrey Nicholson, Clifford Headley, Yin-Wen Lee, Bera Palsdottir, Dan Jakobsen

Proceedings Volume 8237, 82370J (2012) https://doi.org/10.1117/12.908539

KEYWORDS: Raman spectroscopy, Fiber lasers, Oscillators, Cladding, Amplifiers, Wavelength division multiplexing, Diodes, Ytterbium, Fiber amplifiers, Quantum cascade lasers

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Proceedings Article | 23 February 2012 Paper

All-in-one 1236-nm Yb/Raman fiber laser

J. Nicholson, T. Taunay, E. Monberg, F. DiMarcello, Y. Li, J. Ng

Proceedings Volume 8237, 823733 (2012) https://doi.org/10.1117/12.908758

KEYWORDS: Fiber lasers, Raman spectroscopy, Absorption, Resonators, Ytterbium, Cladding, Roads, Laser applications, Laser guide stars, Laser resonators

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Proceedings Article | 23 February 2012 Paper

High-power continuous wave erbium-doped fiber laser pumped by a 1480-nm Raman fiber laser

J. Nicholson

Proceedings Volume 8237, 82370K (2012) https://doi.org/10.1117/12.908234

KEYWORDS: Fiber lasers, Raman spectroscopy, Continuous wave operation, Fiber Bragg gratings, Ytterbium, Cladding, Fiber amplifiers, Wavelength division multiplexing, Wave propagation, Ions

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Proceedings Article | 25 February 2008 Paper

Measurement of bend-induced nonlinearities in large-mode-area fibers

J. Nicholson, J. Fini, A. Yablon, P. Westbrook, K. Feder, C. Headley

Proceedings Volume 6873, 687308 (2008) https://doi.org/10.1117/12.772851

KEYWORDS: Optical fibers, Raman spectroscopy, Raman scattering, Scanning probe microscopy, Fiber amplifiers, Optical amplifiers, Fiber lasers, Picosecond phenomena, Fiber Bragg gratings, Modulation

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Proceedings Article | 8 October 2004 Paper

High-power single-mode all-fiber femtosecond laser system and its use in continuum generation

Jeffrey Nicholson, Man Yan, Andrew Yablon, Paul Westbrook, Ken Feder

Proceedings Volume 5662, (2004) https://doi.org/10.1117/12.596358

KEYWORDS: Single mode fibers, Amplifiers, Fiber lasers, Femtosecond phenomena, Lead, Erbium, Fusion splicing, Fiber amplifiers, Pulsed laser operation, Erbium lasers

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Proceedings Article | 13 September 2002 Paper

Cascade lasing of molecular HBr in the four-micron region pumped by a Nd:YAG laser

Christopher Kletecka, Wolfgang Rudolph, Jeffrey Nicholson, Randy Jones, Neil Campbell

Proceedings Volume 4760, (2002) https://doi.org/10.1117/12.482133

KEYWORDS: Nd:YAG lasers, Absorption, Gas lasers, Carbon monoxide, Photons, Pulsed laser operation, Semiconductor lasers, Luminescence, Temperature metrology, Molecular lasers

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Proceedings Article | 16 August 2000 Paper

Synchronously pumped Raman laser in H2

Petr Straka, Jeffrey Nicholson, Wolfgang Rudolph

Proceedings Volume 4065, (2000) https://doi.org/10.1117/12.407389

KEYWORDS: Raman spectroscopy, Raman scattering, Laser scattering, Computer simulations, Scattering, Laser damage threshold, Solids, Pulsed laser operation, Mode locking, Nd:YAG lasers

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Showing 5 of 33 publications

Conference Committee Involvement (3)

Fiber Lasers XXII: Technology and Systems

27 January 2025 | San Francisco, California, United States

Fiber Lasers XXI: Technology and Systems

29 January 2024 | San Francisco, California, United States

Fiber Lasers XX: Technology and Systems

30 January 2023 | San Francisco, California, United States

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