Donald L. Sipes

Reduced-complexity femtosecond diffractive beam combination of a fiber laser array

Achraf Ayeb, Ihsan Fsaifes, Jean-Christophe Chanteloup, Carson J. Shollenbarger et autres

International audience

Monolithically Integrated 85µm Core High Energy Fiber Amplifier for Pulsed Fiber Laser Array Combination

Mingshu Chen, Fanting Kong, Russell Wilcox, Qiang Du et autres

Single-mode, record high 7.7mJ stored energy extraction from a monolithically integrated fiber amplifier is demonstrated using 85µm-core chirally-coupled-core fiber and counter pumped tapered end cap technologies, enabling integration of high-energy pulsed fiber laser arrays.

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Transverse mode instability (TMI) free high power operation of 85μm core Yb-doped chirally-coupled-core fiber amplifiers

Mingshu Chen, Christopher Pasquale, Jack R. Crandall, I-Ning Hu et autres

We report a TMI-free continuous wave operation of 1.9m-long 85μm core Yb-doped chirally-coupled-core (CCC) fiber amplifier with 333W single mode beam quality output, limited by available 976nm pump power but not the onset of TMI. This is a significantly higher power than …

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PM 56/400 Yb tapered fiber monolithic amplifier in a pulsed MOPA configuration for high energy/power applications

Brian M. Schulz, John Pickron, D. Schulz, Carson J. Shollenbarger et autres

We demonstrate that the PM 56/400 Yb tapered fiber achieves a good combination of large mode field diameter and beam quality for use in a pulsed, monolithic fiber amplifier. We evaluate this fiber over a wide test regime to determine its viability …

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All-fiber integrated 85um core chirally-coupled core fiber high energy amplifiers for compact coherently combined laser arrays

Mingshu Chen, Alexander Rainville, Manoj Kanskar, Ossi Kimmelma et autres

We report development of 85µm core Yb-doped and Ge-doped chirally-coupled-core (CCC) fibers, and their integration via fusion-splicing into an all-fiber optical amplifier system. This system, consisting of a CCC fiber amplifier and a 6+1 fusion-spliced signal-pump-combiner with a passive CCC fiber feed-through …

All-fiber counter-propagation pumped amplifier tailored for Coherent Beam Combining technique

Ihsan Fsaifes, Louis Daniault, Séverine Bellanger, Matthieu Veinhard et autres

we report on the qualification of an all-fiber counter propagating pumped amplifier by using a narrow-linewidth single-frequency nanosecond fiber laser. The proposed amplifier design is tailored to be used for coherent beam combining of fiber amplifiers in tiled-aperture configuration.

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Photonic crystal fiber pump combiner for high-peak power all-fiber thulium lasers

Alex M. Sincore, Jason D. Tafoya, Donald L. Sipes, Lasse Leick et autres

We report on the performance of a prototype pump combiner for use with thulium-doped photonic crystal fiber (PCF). This platform is attractive for “all-fiber” high energy and high peak power laser sources at 2 μm. We will report on the performance of …

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High-power monolithic fiber amplifiers based on advanced photonic crystal fiber designs

Donald L. Sipes, Jason D. Tafoya, Daniel S. Schulz, Thomas Tanggaard Alkeskjold et autres

We report on the development and performance of a fully monolithic PCF amplifier that has achieved over 400 W with near diffraction limited beam quality with an approximately 1GHz phase modulated input. The key components for these amplifiers are an advanced PCF …

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Monolithic eye-safer photonic crystal fiber lasers and amplifiers

Chad G. Carlson, Benjamin G. Ward, Donald L. Sipes, Jason D. Tafoya

We report on the performance of monolithic, polarization maintaining, Er-doped photonic crystal fibers (PCF) and amplifiers operating in the eye-safer wavelength regime from 1.55-1.6 um. As part of this effort, we have developed novel 6x1+1 pump/signal combiners for air-clad photonic crystal fibers …

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KW monolithic PCF fiber amplifers for narrow linewidth and single mode operation

Donald L. Sipes, Jason D. Tafoya, Daniel S. Schulz, Christina B. Olaussen et autres

We report on the progress towards the development and performance of Photonic Crystal Fiber (PCF) based multi-kW fiber amplifiers that are both narrow linewidth and have near diffraction limited beam quality for government and industrial applications that are both reliable and highly …

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Advanced components for multi-kW fiber lasers

Donald L. Sipes, Jason D. Tafoya, Daniel S. Schulz, Benjamin G. Ward et autres

We report on the development and performance of a key components that enable the construction of multi-kW fiber amplifiers for government and industrial applications that are both reliable and highly affordable. The usefulness of these components span the range from single frequency …

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1.5-micron MOPA deep space downlink transmitter

Donald L. Sipes, Jason D. Tafoya, Daniel S. Schulz, Benjamin G. Ward et autres

There is demand for improved deep-space satellite communications links with increased data rates to accommodate new sensor technologies and increased sensor payloads on spacecraft. It is imperative that new solutions be compact in size, light in weight, be high speed, and highly …

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