Results 61 to 70 of about 110,231 (192)

Phase-stabilized, 1.5-W frequency comb at 2.8 to 4.8 micron

, 2009
We present a high-power optical parametric oscillator-based frequency comb in the mid-infrared wavelength region using periodically poled lithium niobate.
Andres, Coddington, Diddams, Erny, Florian Adler, Foreman, Gebs, Ingmar Hartl, Jun Ye, Keilmann, Kevin C. Cossel, Lopez-Alvarez, Maddaloni, Marian, Martin E. Fermann, Michael J. Thorpe, Schibli, Schiller, Sun, Thorpe, Thorpe, Thorpe   +21 more
core   +1 more source

Observation of whispering gallery modes in the mid-infrared with a quantum cascade laser: possible applications to nanoliter chemical sensing [PDF]

, 2009
Excitation of the whispering gallery modes (WGM) of a CaF_2 ball resonator is demonstrated at 4.5 micron with a pulsed Quantum Cascade laser. A prism coupling scheme for mid-infrared is described.
Deev, Andrei, Wu, Sheng
core  

Continuous-wave, multimilliwatt, mid-infrared source tunable across 6.4–7.5  μm based on orientation-patterned GaAs [PDF]

, 2014
We report a continuous-wave (cw) source of tunable mid-infrared radiation providing tens of milliwatt of output power in the 6460–7517 nm spectral range.
Devi, Kavita, Ebrahim-Zadeh, Majid, Schunemann, P. G.   +2 more
core   +2 more sources

Dual-Wavelength Cascade Pumping for Low-Threshold and High-Efficiency 4.4 μm Emission in Dy³⁺:InF₃ Fiber Laser: A Numerical Investigation

Photonics
Dy3+:InF3 fiber shows promise for 4.4 μm mid-infrared lasing, but the much shorter lifetime of its upper laser level compared to the lower level causes inevitable self-termination.
Linhai Yuan, Shuaibin Hu, Jianghao Gan, Xiao Liang, Yizhou Hu, Yuchen Wang, Jun Liu, Pinghua Tang   +7 more
doaj   +1 more source

Novel Broadband Amplifier for Mid-Infrared Semiconductor laser and applications in spectroscopy [PDF]

, 2010
An amplifier design for broadband Mid-IR buried-hetero (BH) structure epitaxial laser is presented, and external cavity design based on this amplifier is described.
Deev, Andrei, Li, Zhenyu, Scherer, Axel, Tang, Yongchun, Wu, Sheng   +4 more
core   +1 more source

FDTD Modelling of Mid Infrared Disk Lasers [PDF]

2007 9th International Conference on Transparent Optical Networks, 2007
This paper presents 2D FDTD modelling of a disk resonator that could be used as a disk laser. Results are shown for mode spacing and good agreement with a simple Whispering Gallery Mode model is observed. The influence of direct coupled waveguides on modal behaviour is studied and a large reduction in cavity Q is observed.
Pugh, J. R., Buss, I. J., Nash, G. R., AshleY, T., Krier, A., Cryan, M. J., Rarity, J. G.   +6 more
openaire   +3 more sources

Frequency Chirped Intensity Modulated Mid-Infrared Light Source Based on Optical Parametric Oscillation

IEEE Photonics Journal, 2020
Optical carried microwave radar (OCMR) has better resistance to turbulence and scattering than conventional laser radar for using intensity modulated laser beam as detection medium.
Kun Li, Suhui Yang, Xin Wang, Zhuo Li, Jinying Zhang   +4 more
doaj   +1 more source

Spatiotemporal Characterization of Supercontinuum Extending from the Visible to the Mid-Infrared in Multimode Graded-Index Optical Fiber [PDF]

, 2016
We experimentally demonstrate that pumping a graded-index multimode fiber with sub-ns pulses from a microchip Nd:YAG laser leads to spectrally flat supercontinuum generation with a uniform bell-shaped spatial beam profile extending from the visible to ...
Barthélémy, A., Bendahmane, A., Couderc, V., Dupiol, R., Fabert, M., Guenard, R., Krupa, K., Leproux, P., Louot, C., Millot, G., Pagnoux, D., Shalaby, B. M., Tonello, A., Wabnitz, S.   +13 more
core   +4 more sources

Watt-level dysprosium fiber laser at 3.15 {\mu}m with 73% slope efficiency

, 2018
Rare-earth-doped fiber lasers are emerging as promising high-power mid-infrared sources for the 2.6-3.0 {\mu}m and 3.3-3.8 {\mu}m regions based on erbium and holmium ions.
Bharathan, G., Fuerbach, A., Hudson, D. D., Jackson, S. D., Majewski, M. R., Woodward, R. I.   +5 more
core   +1 more source

Fluoride and chalcogenide glass fiber components for mid-infrared lasers and amplifiers: Breakthroughs, challenges, and future perspective

APL Photonics
Since the early 1990s, when researchers began to explore rare-earth-doped mid-infrared glass fibers, fiber laser systems have emerged as promising high-brightness light sources with wavelengths beyond 2.5 μm for applications in spectroscopy and sensing ...
Kirill Grebnev, Boris Perminov, Toney T. Fernandez, Alex Fuerbach, Maria Chernysheva   +4 more
doaj   +1 more source