Results 31 to 40 of about 42,863 (289)

Experimental Investigation of Actively Q-Switched Er³⁺:ZBLAN Fiber Laser Operating at around 2.8 µm

Sensors, 2020
A diode-pumped Q-switched Er3+:ZBLAN double-clad, single-transverse mode fiber laser is practically realized. The Q-switched laser characteristics as a function of pump power, repetition rate, and fiber length are experimentally investigated. The results
Lukasz Sojka, Lukasz Pajewski, Samir Lamrini, Mark Farries, Trevor M. Benson, Angela B. Seddon, Slawomir Sujecki   +6 more
doaj   +1 more source

Proof-of-principle of surface detection with air-guided quantum cascade lasers [PDF]

, 2008
We report a proof-of-principle of surface detection with air-guided quantum cascade lasers. Laser ridges were designed to exhibit an evanescent electromagnetic field on their top surface that can interact with material or liquids deposited on the device.
Colombelli, Raffaele, Krysa, Audrey B., Moreau, Virginie, Painter, Oskar, Perahia, Raviv, Wilson, Luke R.   +5 more
core   +1 more source

Milliwatt-Level Spontaneous Emission Across the 3.5–8 µm Spectral Region from Pr³⁺ Doped Selenide Chalcogenide Fiber Pumped with a Laser Diode

Applied Sciences, 2020
A spontaneous emission fiber source operating in the mid-infrared (MIR) wavelength range from 3.5 to 8 µm is demonstrated for the first time at output power levels of at least 1 mW.
Lukasz Sojka, Zhuoqi Tang, Dinuka Jayasuriya, Meili Shen, Joel Nunes, David Furniss, Mark Farries, Trevor M. Benson, Angela B. Seddon, Slawomir Sujecki   +9 more
doaj   +1 more source

Modeling of Amplitude Squeezing in a Pump-Noise-Suppressed Interband Cascade Laser

IEEE Photonics Journal, 2022
A semi-classical rate equation model for the amplitude squeezing of mid-infrared interband cascade lasers is presented based on Green's function method.
Shiyuan Zhao, Frederic Grillot
doaj   +1 more source

Multilayer black phosphorus as broadband saturable absorber for pulsed lasers from 1 to 2.7 {\mu}m wavelength

, 2015
It attracts wide interest to seek universe saturable absorber covering wavelengths from near infrared to mid-infrared band. Multilayer black phosphorus, with variable direct bandgap (0.3-2 eV) depending on the layer number, becomes a good alternative as ...
Guo, Zhinan, Kong, Lingchen, Qian, Liejia, Qin, Zhipeng, Xie, Guoqiang, Yuan, Peng, Zhang, Han   +6 more
core   +1 more source

Self-consistent scattering model of carrier dynamics in GaAs-AlGaAs terahertz quantum-cascade lasers [PDF]

, 2003
Intersubband electron scattering transport in terahertz GaAs–AlGaAs quantum cascade lasers is analyzed, using a full 13-level self-consistent rate equation model.
Harrison, P., Ikonic, Z., Indjin, D., Kelsall, R.W.   +3 more
core   +1 more source

Mid-infrared ring laser

Electronics Letters, 2003
The first mid-infrared ring laser diode based on InAs and operating in the mid-infrared spectral region near 3 pin and with a maximum operating temperature of 125 K is reported. The source is based on a symmetrical double heterostructure with large band offsets.
Krier, A., Sherstnev, V. V., Wright, D., Monakhov, A. M., Hill, G.   +4 more
openaire   +1 more source

Theory and design of In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$ mid-infrared semiconductor lasers: type-I quantum wells for emission beyond 3 $\mu$m on InP substrates [PDF]

, 2018
We present a theoretical analysis and optimisation of the properties and performance of mid-infrared semiconductor lasers based on the dilute bismide alloy In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$, grown on conventional (001) InP substrates.
Bauer A, Broderick C A, Broderick C A, Broderick C A, Broderick C A, Broderick C A, Chai G M T, Christopher A Broderick, Chuang S L, Eales T D, Ehrhardt M, Eoin P O’Reilly, Gadedjisso-Tossou K S, Gu Y, Gu Y, Gu Y, Hodgkinson J, Judy M Rorison, Jung D, Krijn M P C M, O’Reilly E P, Repiso E, Stephen J Sweeney, Sweeney S J, Vizbaras K, Voisin P, Vurgaftman I, Wanshu Xiong   +27 more
core   +2 more sources

Numerical Study on the Soliton Mode-Locking of the Er3+-Doped Fluoride Fiber Laser at ~3 μm with Nonlinear Polarization Rotation

Photonics, 2019
Recent interest in the application of mid-infrared (mid-IR) lasers has made the generation of ~3 µm ultrafast pulses a hot topic. Recently, the generation of femtosecond-scale pulses in Er3+-doped fluoride fiber lasers has been realized by ...
Feijuan Zhang, Wenyan Yan, Shengnan Liang, Chao Tan, Pinghua Tang   +4 more
doaj   +1 more source

Advances in Mid-IR Fiber Lasers: Tellurite, Fluoride and Chalcogenide

Fibers, 2017
A review on the recent progress in modeling and fabrication of medium infrared (Mid-IR) fiber lasers is reported. The main objective is to illustrate some recent examples of continuous wave optical sources at wavelengths longer than those commonly ...
Mario Christian Falconi, Dario Laneve, Francesco Prudenzano   +2 more
doaj   +1 more source