Mr. Christopher E. Aleshire Profile

Christopher E. Aleshire

Student at Pulsed Light Technologies, GmbH

SPIE Involvement:

Author

Publications (12)

Proceedings Article | 12 March 2024 Paper

Highly efficient, in-band pumped, thulium-doped, Q-switched fiber laser

Mathias Lenski, Tobias Heuermann, Ziyao Wang, Christopher Aleshire, Christian Gaida, César Jáuregui, Jens Limpert

Proceedings Volume 12865, 128650T (2024) https://doi.org/10.1117/12.3002765

KEYWORDS: Oscillators, Fiber lasers, Q switching, Energy efficiency, Absorption, Q switched fiber lasers, Fiber amplifiers, Thulium

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Proceedings Article | 8 March 2023 Presentation + Paper

The impact of structural birefringence in multicore fibers

Cesar Jauregui, Arno Klenke, Albrecht Steinkopff, Christopher Aleshire, Jens Limpert

Proceedings Volume 12400, 1240011 (2023) https://doi.org/10.1117/12.2650279

KEYWORDS: Birefringence, Multicore fiber, Polarization, Structured optical fibers, Polarization maintaining fibers

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Proceedings Article | 8 March 2023 Presentation + Paper

Optical core-to-core crosstalk in rod-type multicore fibers

Albrecht Steinkopff, Christopher Aleshire, Arno Klenke, Cesar Jauregui, Johannes Nold, Stefan Kuhn, Nicoletta Haarlammert, Thomas Schreiber, Jens Limpert

Proceedings Volume 12400, 124000Z (2023) https://doi.org/10.1117/12.2650040

KEYWORDS: Multicore fiber, Crosstalk, Optical simulations

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Proceedings Article | 8 March 2023 Presentation + Paper

49-core rod-type ytterbium-doped multicore fiber for high power operation

Arno Klenke, Mehran Bahri, Albrecht Steinkopff, Christopher Aleshire, Cesar Jauregui, Johannes Nold, Nicoletta Haarlammert, Thomas Schreiber, Jens Limpert

Proceedings Volume 12400, 124000Y (2023) https://doi.org/10.1117/12.2649986

KEYWORDS: Multicore fiber, Femtosecond pulse shaping, Femtosecond phenomena, Beam diameter, Physical coherence, Photonics, Diodes, Coherent beam combination, Beam splitters, Ultrafast phenomena

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Proceedings Article | 8 March 2023 Presentation + Paper

Analysis and fabrication of tapered multicore gain fibers for high power lasers

Christopher Aleshire, Albrecht Steinkopff, Arno Klenke, Cesar Jauregui, Steffen Böhme, Tobias Koch, Stefan Kuhn, Johannes Nold, Nicoletta Haarlammert, Thomas Schreiber, Jens Limpert

Proceedings Volume 12400, 1240013 (2023) https://doi.org/10.1117/12.2650508

KEYWORDS: Multicore fiber, Beam propagation method, High power lasers, Fiber lasers

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Proceedings Article | 4 March 2022 Presentation + Paper

High energy oscillator-amplifier with tapered rod-type multicore fiber

Christopher Aleshire, Albrecht Steinkopff, Maximilian Karst, Arno Klenke, Cesar Jauregui, Stefan Kuhn, Johannes Nold, Nicoletta Haarlammert, Thomas Schreiber, Jens Limpert

Proceedings Volume 11981, 1198108 (2022) https://doi.org/10.1117/12.2609569

KEYWORDS: High power fiber lasers, Q switched fiber lasers, Fiber lasers, Fiber amplifiers, Optical amplifiers, Q switching, Oscillators, High power fiber amplifiers, Coherent beam combination

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Proceedings Article | 4 March 2022 Presentation + Paper

500 W average power, multicore fiber-based femtosecond CPA system

Arno Klenke, A. Steinkopff, C. Aleshire, C. Jauregui, Stefan Kuhn, Johannes Nold, Christian Hupel, Sigrun Hein, Steffen Schulze, Nicoletta Haarlammert, Thomas Schreiber, Andreas Tünnermann, Jens Limpert

Proceedings Volume 11981, 119810E (2022) https://doi.org/10.1117/12.2609380

KEYWORDS: Femtosecond phenomena, Reflectivity, Fiber amplifiers, Beam splitters, Polarization, Mirrors, Fiber lasers, Wave plates, Laser systems engineering, Structured optical fibers

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Proceedings Article | 5 March 2021 Presentation + Paper

Optimizing the design of coherently combined multicore fiber amplifiers

Albrecht Steinkopff, Cesar Jauregui, Christopher Aleshire, Arno Klenke, Jens Limpert

Proceedings Volume 11665, 116651Q (2021) https://doi.org/10.1117/12.2583082

KEYWORDS: Fiber amplifiers, Thermal effects, Optical simulations, Computer simulations

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Proceedings Article | 21 February 2020 Paper

Simplification strategies for segmented-mirror splitters in multicore fiber CBC systems

Christopher Aleshire, Arno Klenke, Michael Müller, Henning Stark, Andreas Tünnermann, Jens Limpert

Proceedings Volume 11260, 112600E (2020) https://doi.org/10.1117/12.2551541

KEYWORDS: Fiber lasers, Beam splitters, Laser systems engineering, Fiber amplifiers, Amplifiers, Coherent beam combination, Optical simulations

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Proceedings Article | 21 February 2020 Paper

10.4 kW coherently-combined ultrafast fiber laser

M. Mueller, C. Aleshire, H. Stark, J. Buldt, A. Steinkopff, A. Klenke, A. Tünnermann, J. Limpert

Proceedings Volume 11260, 112600B (2020) https://doi.org/10.1117/12.2546857

KEYWORDS: Optical amplifiers, Fiber lasers, Fiber amplifiers, Laser systems engineering, Beam splitters, Ultrafast lasers, Automatic alignment

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Proceedings Article | 21 February 2020 Paper

Investigation of the thermo-optical behavior of multicore fibers used in coherently combined fiber laser systems

Albrecht Steinkopff, Cesar Jauregui, Arno Klenke, Christopher Aleshire, Andreas Tünnermann, Jens Limpert

Proceedings Volume 11260, 112600D (2020) https://doi.org/10.1117/12.2545679

KEYWORDS: Optical fibers, Fiber lasers, Thermal effects, Laser systems engineering, Optical simulations, Coherent beam combination, Computer simulations, Refractive index

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Proceedings Article | 26 February 2018 Presentation + Paper

High brightness photonic lantern kW-class amplifier

Juan Montoya, Chris Hwang, Chris Aleshire, Patricia Reed, Dale Martz, Mike Riley, Michael Trainor, Catherine Belley, Scot Shaw, T. Y. Fan, Dan Ripin

Proceedings Volume 10512, 1051202 (2018) https://doi.org/10.1117/12.2290014

KEYWORDS: Control systems, Polarization, Fiber amplifiers, Single mode fibers, Adaptive control, Modulators, Superposition, Atmospheric turbulence, Optical amplifiers, Multimode fibers

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Showing 5 of 12 publications

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