Results 31 to 40 of about 60,818 (294)

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

Semiconductor quantum dots devices: Recent advances and application prospects [PDF]

, 2006
In this paper, a brief review will be given on recent advances in semiconductor quantum dots based optoelectronic devices. The focus will be on two major application areas, i.e., telecom devices and high power light sources, where some device examples ...
Akiyama, Alizon, Asada, Auzanneau, Bakonyi, Borri, Dery, Deubert, Deubert, Deubert, Fathpour, Gioannini, Hadass, Ju, Kaiser, Kita, Klopf, Ledentsov, Liu, Maksimov, Mukai, Reithmaier, Reithmaier, Sauerwald, Schwertberger, Shchekin, Sumpf, van der Poel, van der Poel   +28 more
core   +1 more source

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

Ultrafast ytterbium-doped bulk lasers and laser amplifiers [PDF]

Applied Physics B: Lasers and Optics, 1999
We review recent achievements with ultrafast bulk lasers and amplifiers based on Yb:YAG and Yb:glass. Special attention is paid to those aspects of the quasi-three-level nature of these gain media that are important for short-pulse generation. The potential of Yb-doped media for efficient short-pulse generation and amplification is compared to their Nd-
Hönninger, C., Paschotta, R., Zhang, G., Biswal, Subrat, Morier-Genoud, F., Moser, M., Giesen, A., Mourou, Gerard A., Nees, John A., Seeber, W., Johannsen, I., Graf, M., Keller, U., Braun, Arthur R.   +13 more
openaire   +3 more sources

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

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

Quantum noise detection: a portable and educational system [PDF]

, 2015
Quantum noise is a key feature of laser beams. It is both a limiting effect in contemporary optical measurements and a manifestation of the quantum nature of light. Its properties distinguish it from classical noise.
Bachor, Hans, Colla, Massimiliano, Morizur, Jean-François   +2 more
core   +1 more source

Table-top optical parametric chirped pulse amplifiers: past and present

Opto-Electronic Advances, 2023
The generation of power- and wavelength-scalable few optical cycle pulses remains one of the major challenges in modern laser physics. Over the past decade, the development of table-top optical parametric chirped pulse amplification-based systems was ...
Audrius Dubietis, Aidas Matijošius
doaj   +1 more source

Practical method for modelling the nonlinear behaviour of a travelling wave semiconductor optical amplifier [PDF]

, 1993
The authors present a simple model of a travelling wave semiconductor optical amplifier with an appreciable degree of saturation. The model uses a particular way of linearising the total carrier recombination R(N) to find useful expressions for the ...
Guitart Felip, Jorge, Ruiz Moreno, Sergio   +1 more
core   +2 more sources