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Four-wave mixing can be used to generate coherent output beams, with frequencies difficult to acquire in commercial lasers. Here a single narrow ECDL locked to the two photon 5s-5d transition in rubidium is combined with a tapered amplifier…

Atomic Physics · Physics 2016-04-13 E. Brekke , L. Alderson

We describe the generation of powerful dispersive waves that are observed when pumping a dual concentric core microstructured fiber by means of a sub-nanosecond laser emitting at the wavelength of~1064 nm. The presence of three zeros in the…

We demonstrate a 1.4 W continuous wavelength (CW) laser at 243.1 nm. The radiation is generated through frequency quadrupling the output of a ytterbium-doped fiber amplifier system which produces $>$ 10 W of CW power at 972.5 nm. We…

Atomic Physics · Physics 2018-11-27 Z. Burkley , A. D. Brandt , C. Rasor , S. F. Cooper , D. C. Yost

We propose and optimize theoretically a supercontinuum (SC) laser source in the mid-IR based on using As-Se-Te/As-S core/clad step-index fibers and a femtosecond all-fiber laser system at 2 {\mu}m. Numerically simulated spectra extending…

An experimental investigation of sub-wavelength imaging by a wire medium slab is performed. A complex-shaped near field source is used in order to test imaging performance of the device. It is demonstrated that the ultimate bandwidth of…

Materials Science · Physics 2015-06-25 Pavel A. Belov , Yan Zhao , Sunil Sudhakaran , Akram Alomainy , Yang Hao

A watt-level ultrahigh optical signal-to-noise ratio (OSNR) single-longitudinal-mode (SLM) tunable Brillouin fiber laser (BFL) has been demonstrated.By optimizing the length of the single mode fiber (SMF) cavity at 11m and its output ratio…

Optics · Physics 2015-06-12 Gaomeng Wang , Li Zhan , Jinmei Liu , Tao Zhang , Jun Li , Liang Zhang , Junsong Peng , Lilin Yi

We discuss issues re: power scaling of mid-IR Er:ZBLAN spherical microlasers and demonstrate achievement of near-milliwatt power levels from a narrow-linewidth (< 50 pm) 2.71 um laser source based on an Er:ZBLAN microlaser.

Optics · Physics 2018-08-01 Behsan Behzadi , Ravinder K. Jain , Mani Hossein-Zadeh

We report watt-level femtosecond pulses in the 1.75 $\mu$m region using a thulium-doped core, terbium-doped cladding fluoride (Tm:Tb:ZBLAN) fiber laser system. The seed pulse is generated through stimulated Raman scattering in a silica…

We perform a numerical analysis of mid-infrared photoluminescence emitted by praseodymium (III) doped chalcogenide selenide glass pumped at near-infrared wavelengths. The results obtained show that an effective inversion of level…

Lab-on-a-Chip (LoC) devices combining microfluidic analyte provision with integrated optical analysis are highly desirable for several applications in biological oder medical sciences. While the microfluidic approach is already broadly…

Broad and safe access to ultrafast laser technology has been hindered by the absence of optical fiber-delivered pulses with tunable central wavelength, pulse repetition rate, and pulse width in the picosecond-femtosecond regime. To address…

Erbium-doped waveguide amplifiers have captured great attentions in recent years due to the rapid advance of photonic integration materials and fabrication techniques. In this work, a compact erbium-doped thin-film lithium niobate waveguide…

Optics · Physics 2025-08-19 Mengqi Li , Jianping Yu , Zhe Wang , Botao Fu , Rongbo Wu , Min Wang , Haisu Zhang , Ya Cheng

This paper reports the achievement of 120W single-frequency narrow linewidth 1018nm laser based on wide-tunable DBR fiber seed source. The DBR structure seed source uses 8mm long doped optical fibers with a line width of 3.25k. The…

Optics · Physics 2024-07-30 Pan Li , Linfeng Li , Mingze Wang , KaiMing Cao , Ruihong Gao , Heshan Liu , Meng Shi , Ziren Luo

Frequency-modulated (FM) laser combs, which offer a periodic quasi-continuous-wave output and a flat-topped optical spectrum, are emerging as a promising solution for wavelength-division multiplexing applications, precision metrology, and…

We demonstrate a high power, all-fiber, tunable laser source that can operate in the L-band region. A low power, tunable input laser is amplified with a recently proposed, high efficiency, 6th order cascaded Raman amplifier. The proposed…

Optics · Physics 2018-08-15 S Arun , Vishal Choudhury , Roopa Prakash , V R Supradeepa

In this Letter, we investigate the feasibility and performance of wavelength division multiplexed (WDM) optical communications using an integrated dissipative Kerr soliton micro-comb as the multi-channel laser source. First, we confirm that…

The goal of this report is to study the conditions for efficient THz generation using Frequency Difference Generation principle. In particular, two CW IR beams are used together with a periodically poled lithium niobate crystal in order to…

Optics · Physics 2017-11-22 K. Nallapan , R. Morandotti , M. Skorobogatiy

Four wave mixing (FWM) is an important way to generate supercontinuum and frequency combs in the mid-infrared band. Here, we obtain simultaneous synthetic FWM in the visible and mid-infrared bands by cascading quadratic nonlinear processes…

In this contribution, a comprehensive experimental study of photoluminescence from Pr3+/Dy3+ co-doped selenide-chalcogenide multimode fiber samples is discussed. The selenide-chalcogenide multimode fiber samples co-doped with 500 ppm of…

Using a nondegenerate four-wave mixing (FWM) process based on a double-{\Lambda} scheme in hot cesium vapor, we demonstrate a compact diode-laser-pumped quantum light source for the generation of quantum correlated twin beams with a maximum…

Quantum Physics · Physics 2018-03-09 Rong Ma , Wei Liu , Zhongzhong Qin , Xiaolong Su , Xiaojun Jia , Junxiang Zhang , Jiangrui Gao