Results 21 to 30 of about 1,205,027 (295)

Ultrafast Fiber Technologies for Compact Laser Wake Field in Medical Application

Photonics, 2022
Technologies, performances and maturity of ultrafast fiber lasers and fiber delivery of ultrafast pulses are discussed for the medical deployment of laser-wake-field acceleration (LWFA).
Weijian Sha, Jean-Christophe Chanteloup, Gérard Mourou   +2 more
doaj   +1 more source

Coupled experiment/simulation approach for the design of radiation-hardened rare-earth doped optical fibers and amplifiers [PDF]

, 2011
We developed an approach to design radiation-hardened rare earth -doped fibers and amplifiers. This methodology combines testing experiments on these devices with particle swarm optimization (PSO) calculations.
F. Prudenzano, Mescia, L, Vivona, M., Girard, S, Boukenter, Aziz, A. Boukenter, Goiffon, V, Cannas, M., V. Goiffon, Mescia, Luciano, Boukenter, A, L. Mescia, Vivona, Marilena, Mescia, L., R. Boscaino, Cadier, B., P. Paillet, Paillet, P., Y. Ouerdane, Boukenter, A., Paillet, P, Paillet, Philippe, Marcandella, C, Cadier, Benoît, S. Girard, A. Laurent, Laurent, A, Robin, T, C. Marcandella, Goiffon, Vincent, Cadier, B, Ouerdane, Y., Ouerdane, Y, Girard, Sylvain, Prudenzano F, Robin, Thierry, F. Robin, Prudenzano, F, Laurent, Arnaud, Boscaino, Roberto, T. Robin, Robin, T., B. Cadier, Marcandella, C., Goiffon, V., Cannas, Marco, M. Cannas, Prudenzano, F., Boscaino, R., Prudenzano, Francesco, Ouerdane, Youcef, M. Vivona, Girard, Sébastien, Marcandella, Claude, Laurent, A.   +54 more
core   +1 more source

Triple-wavelength fiber ring laser based on a hybrid gain medium actively mode-locked at 10 GHz [PDF]

, 2008
A fiber ring laser based on a hybrid gain medium that produces three simultaneously mode-locked wavelength channels is presented. The lithium niobate based modulator used to actively mode-lock the laser cavity at 10 GHz is birefringence compensated to ...
Anandarajah, Prince M., Barry, Liam P., O'Riordan, Colm, C. O'Riordan, R. Maher, O\u27Riordan, Colm, P.M. Anandarajah, L.P. Barry, Connelly, Michael J., M.J. Connelly, Maher, Robert D.   +10 more
core   +2 more sources

Thermal management in quasi-waveguide amplifiers based on Herriott cells [PDF]

EPJ Web of Conferences
We present a new geometry for laser amplifiers with bulk laser gain media based on the quasi-waveguide property of Herriott cells. A proof-of-principle experiment and numerical simulations of the heat equation indicate a potential advantage in terms of ...
Meyer Johann Gabriel, Zablah Andrea, Pronin Oleg   +2 more
doaj   +1 more source

Tapered Multicore Fiber for High-Power Laser Amplifiers

IEEE Photonics Journal, 2022
The problem of coherent amplification of the out-of-phase mode in tapered multicore fibers with cores arranged in a ring and in a square lattice is studied theoretically.
A. V. Andrianov, S. A. Skobelev, A. A. Balakin, E. A. Anashkina, A. G. Litvak   +4 more
doaj   +1 more source

Erbium:ytterbium co-doped large-core fiber laser with 297W continuous-wave output power [PDF]

, 2007
We have demonstrated a high-power and high-efficiency erbium:ytterbium (Er:Yb) co-doped fiber laser that produces 297 W of continuous-wave output at 1567 nm.
Nilsson, J., Jayanta K. Sahu, Mike Lovelady, Piper, A., Johan Nilsson, David N. Payne, Yoo, S., R. Horley, Andy Piper, Payne, D.N., Lovelady, M., Christophe A. Codemard, Jeong, Y., Hickey, L.M.B., Andrew Harker, Yoonchan Jeong, Louise Hickey, Turner, P.W., Horley, R., P. W. Turner, Codemard, Christophe, Harker, A.T., Sahu, J.K., Seongwoo Yoo   +23 more
core   +1 more source

Ultrafast organic lasers and solid-state amplifiers [PDF]

, 2007
This thesis presents an investigation of the lasing dynamics and optical amplification devices using conjugated polymers. Spectroscopic studies of conjugated polymers and dendrimers were also performed. Conjugated polymers and dendrimers are materials
Goossens, Mark
core   +2 more sources

Development of a two arm, high energy, high power laser for plasma research in India

EPJ Web of Conferences, 2013
We report here work done towards development of a two arm, high energy, high power Nd:phosphate glass laser system. One arm of the laser is proposed to be operated in a long pulse (∼1.5ns pulse duration) with an energy of ∼400 J.
Joshi A.S., Kamath M.P., Sharma A.K., Raghuramaiah M.R., Patidar R.K., Ansari M.S., Sreedhar N., Chandra R., Navathe C.P., Naik P.A., Gupta P.D.   +10 more
doaj   +1 more source

Optimization and Demonstration of Direct LD Pumped High-Power Fiber Lasers to Balance SRS and TMI Effects

Photonics, 2023
Up to now, transverse mode instability (TMI) and stimulated Raman scattering (SRS) have become the main factors limiting the power scaling of conventional ytterbium-doped fiber laser. Many technologies are proposed to suppress the SRS or TMI individually,
Lingfa Zeng, Xiaolin Wang, Li Wang, Yun Ye, Peng Wang, Baolai Yang, Xiaoming Xi, Zhiyong Pan, Hanwei Zhang, Chen Shi, Kai Han, Xiaojun Xu   +11 more
doaj   +1 more source

Ultra-Short Pulse Generation at 914 nm from a CW laser source [PDF]

EPJ Web of Conferences
We present an all-PM fiber laser system seeded by a single-frequency CW laser source generating 230fs pulses at 914nm with a tunable repetition rate between 5 and 20 MHz.
Florentin Raphaël, Viry Arnaud, Robin Thierry, Corre Kilian Le, Santarelli Giorgio, Georges Thierry, Gilles Hervé, Girard Sylvain, Laroche Mathieu   +8 more
doaj   +1 more source