Results 31 to 40 of about 2,605 (184)

Stimulated Supercontinuum Generation

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009
We demonstrate active control over optical rogue waves with a weak optical seed. With this effect, we stimulate supercontinuum generation, resulting in greatly enhanced stability and coherence. The phenomenon also facilitates all-optical three-terminal devices.
Solli, Daniel R., Ropers, Claus, Jalali, Bahram   +2 more
openaire   +2 more sources

Multi-octave supercontinuum generation from mid-infrared filamentation in a bulk crystal

EPJ Web of Conferences, 2013
We present supercontinuum generation pumped by femtosecond mid-infrared pulses in a bulk homogeneous material. The spectrum extends from 450 nm into the midinfrared, and carries high spectral energy density (3 pJ/nm–10 nJ/nm). The supercontinuum has high
Faccio D., Hemmer M., Baudisch M., Thai A., Silva F., Austin Dane R., Couairon A., Biegert J.   +7 more
doaj   +1 more source

Two-Octave Supercontinuum Generation of High-Order OAM Modes in Air-Core As₂S₃ Ring Fiber

IEEE Access, 2020
In this work, we design and simulate an air-core As2S3 ring fiber for high-order orbital angular momentum (OAM) supercontinuum generation. We show that the chromatic dispersion of the ring fiber can be substantially tailored by proper optimization of the
Yingning Wang, Changjing Bao, Jicong Jiang, Yuxi Fang, Wenpu Geng, Zhi Wang, Weigang Zhang, Hao Huang, Yongxiong Ren, Zhongqi Pan, Yang Yue   +10 more
doaj   +1 more source

Supercontinuum generation in high-index doped silica photonic integrated circuits under diverse pumping settings [PDF]

EPJ Web of Conferences
Recent years have witnessed remarkable progress in enhancing the supercontinuum (SC) generation in highly nonlinear photonic integrated waveguides. In this study, we conduct a comprehensive investigation into supercontinuum (SC) generation in high-index ...
Khallouf C., Hoang V. T., Fanjoux G., Little B., Chu S. T., Moss D. J., Morandotti R., Dudley J. M., Wetzel B., Sylvestre T.   +9 more
doaj   +1 more source

Active Supercontinuum Injection for Optical Parametric Chirped Pulse Amplification

IEEE Photonics Journal, 2017
The anticipant supercontinuum is a prerequisite for the pump seed generation in an optical parametric chirped pulse amplification (OPCPA) system. To achieve the anticipant supercontinuum, we develop an active method operated in a two-level control scheme
Jie Mu, Kainan Zhou, Xiao Wang, Yi Guo, Yanlei Zuo, Xiaodong Wang, Na Xie, Song Zhou, Qihua Zhu, Jingqin Su, Lei Zhao, Xiaoming Zeng   +11 more
doaj   +1 more source

Ultra-wideband and coherent supercontinuum generation (near and mid-infrared) in dispersion flattened ZnGeP2 photonic crystal fiber

Alexandria Engineering Journal, 2023
Transmission window is a major concern in selecting the background material of photonic crystal fiber for supercontinuum generation. In this work, Zinc-Germanium Diphosphide (ZnGeP2) based single material photonic crystal fiber has been proposed with ...
Shah Md. Salimullah, Mohammad Faisal
doaj   +1 more source

Second‐Harmonic Hyper‐Mie Optical Activity Enables Closed‐Loop Chiral Photochemistry

Advanced Materials, EarlyView.
Nonlinear chiral photochemistry is demonstrated in CdTe/CdO nanohelices, where circularly polarized infrared light both drives and tracks photo‐oxidation via second‐harmonic scattering. This closed‐loop process reveals real‐time structural evolution, including shell fracturing and core exposure, accompanied by a transition from hyper‐Mie to hyper ...
Hoyeon Choi, Kody Whisnant, Ben J. Olohan, E. Petronijevic, G. Dan Pantoș, Nicholas A. Kotov, Ventsislav K. Valev   +6 more
wiley   +1 more source

Programmable and tunable flat-top supercontinuum laser sources via electro-optic intensity and phase modulation scheme

Scientific Reports, 2022
In this study, we presented flat-topped coherent supercontinuum lasers with tunable repetition rates and programmable spectral bandwidths. Supercontinuum sources with ultra-broadband and high-repetition-rate coverage can be achieved by merging ...
Minhyup Song, Minje Song, Seungyoung Lim, Hyunjong Choi, Taehyun Lee, Gyudong Choi, Youngjin Jung, Joon Tae Ahn   +7 more
doaj   +1 more source

Supercontinuum generation in silicon photonic wires

Optics Express, 2007
We observe spectral broadening of more than 350 nm, i.e., a 3/10-octave span, upon propagation of ultrashort 1.3-mum-wavelength optical pulses in a 4.7-mm-long silicon-photonic-wire waveguide. We measure the wavelength dependence of the spectral features and relate it to waveguide dispersion and input power.
I-Wei, Hsieh, Xiaogang, Chen, Xiaoping, Liu, Jerry I, Dadap, Nicolae C, Panoiu, Cheng-Yun, Chou, Fengnian, Xia, William M, Green, Yurii A, Vlasov, Richard M, Osgood   +9 more
openaire   +2 more sources

Coupling of Er3+ ions and Plasmonic Modes in Vertical Nanocavities for Spectral Broadening in Telecom Bands

Advanced Materials Technologies, EarlyView.
Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón, Víctor Anthony García Rivera, Stéphan Cagnon, Souleymane Toubou Bah, Younès Messaddeq, Euclydes Marega Junior   +5 more
wiley   +1 more source