Results 11 to 20 of about 326 (131)

Ultrafast optical properties and applications of anisotropic 2D materials. [PDF]

Nanophotonics
Abstract Two‐dimensional (2D) layered materials exhibit strong light‐matter interactions, remarkable excitonic effects, and ultrafast optical response, making them promising for high‐speed on‐chip nanophotonics. Recently, significant attention has been directed towards anisotropic 2D materials (A2DMs) with low in‐plane crystal symmetry. These materials
Suk SH, Seo SB, Cho YS, Wang J, Sim S.
europepmc   +2 more sources

Use of Simple Octa-Ring Configuration for Tunable Erbium Laser With Single-Mode Output

IEEE Access, 2022
In this paper, an erbium-doped fiber (EDF) octa-ring laser system with continuous-wave (CW) tunability and stable single-longitudinal-mode (SLM) output is presented and investigated.
Chien-Hung Yeh, Yu-Ting Lai, Li-Hung Liu, Han-Shin Ko, Yi-Ting Lai, Yi-Chi Chen, Chi-Wai Chow   +6 more
doaj   +1 more source

Two Stage Three Pass EDFA Design and EDFA Parameters’ Optimization

Gazi Üniversitesi Fen Bilimleri Dergisi, 2020
In this study, two stage and triple pass erbium doped fiber amplifier (EDFA) is designed and EDFA’s input signal wavelengths and powers, erbium doped fiber (EDF) lengths, and pump laser powers are optimized.
Murat YÜCEL, Emrah Yiğit
doaj   +1 more source

An Erbium Fiber Laser With Single-Frequency Oscillation and Wavelength-Upconverted Output

IEEE Photonics Journal, 2020
In this paper, we present experimentally an erbium-doped fiber (EDF) laser system to accomplish the single-longitudinal-mode (SLM) and wavelength-upconverted output by using nonlinear effect.
Chien-Hung Yeh, Wei-Yao You, Jhao-Ren Chen, Chi-Wai Chow, Wen-Piao Lin   +4 more
doaj   +1 more source

L-Band Erbium Fiber Laser with Tunable and Narrow Sub-kHz Linewidth Output

Applied Sciences, 2023
In this paper, a wavelength-selectable erbium-doped fiber (EDF) laser in L-band bandwidth with a simple structure and low cost is described. To obtain stable single-longitudinal-mode (SLM) and narrow laser linewidth, the 2 m unpumped EDF-based saturable ...
Lan-Yin Chen, Yu-Ting Lai, Chien-Hung Yeh, Chun-Yen Lin, Kuan-Ming Cheng, Jing-Heng Chen, Chi-Wai Chow   +6 more
doaj   +1 more source

Hyperspectral Coherent Raman Scattering (CRS) Microscopy Based on a Rapidly Tunable and Environmentally Stable Fiber Laser

Laser &Photonics Reviews, Volume 17, Issue 12, December 2023., 2023
Hyperspectral Coherent Raman Scattering microscopy is capable of distinguishing molecules in complex heterogeneous systems by probing multiple Raman resonances. A rapidly tunable two‐color fiber laser is demonstrated. The superior noise performance of this system is evaluated by the side‐by‐side comparison with data from a commercial optical parametric
Cihang Kong, Christian Pilger, Manuel Kunisch, Christine Förster, Jan Schulte am Esch, Thomas Huser   +5 more
wiley   +1 more source

Emerging 2D Materials with Nonparabolic Bands for Ultrafast Photonics

Small Science, Volume 3, Issue 10, October 2023., 2023
Materials with nonparabolic bands focus on different applications in ultrafast photonics, such as ultrafast carrier dynamics and nonlinear optical response. Linear dispersive Dirac bands have massless electrons like a photon, while nondispersive flat bands host electrons with an infinite mass.
Guanyu Liu, Zhengwei Cui, Fangteng Zhang, Youjun Zeng, Weicheng Chen, Yuxian Liu, Zhaogang Nie, Qiaoliang Bao   +7 more
wiley   +1 more source

Chaotic Internal Dynamics of Dissipative Optical Soliton Molecules

Laser &Photonics Reviews, Volume 17, Issue 8, August, 2023., 2023
Can the analogy between optical soliton molecules and matter molecules be further developed? Do optical soliton molecules allow low‐dimensional chaos? An ultrafast fiber laser experiment with advanced characterization demonstrates bifurcations leading to chaotic relative motions of the bound optical solitons.
Youjian Song, Defeng Zou, Omri Gat, Minglie Hu, Philippe Grelu   +4 more
wiley   +1 more source

Unveiling Laser Radiation of Multiple Optical Solitons by Nonlinear Fourier Transform

Laser &Photonics Reviews, Volume 17, Issue 7, July 2023., 2023
Nonequilibrium multiple soliton dynamics and all‐optical control of multiple solitons drifting are revealed by coherent homodyne detection and nonlinear Fourier transform (NFT) technique, further extending the application of the NFT to the analysis of laser radiation.
Yi Zhou, Gai Zhou, Yuwen Qin, Songnian Fu, Alan Pak Tao Lau, Kenneth K. Y. Wong   +5 more
wiley   +1 more source

Wideband and flat gain series erbium doped fiber amplifier using hybrid active fiber with backward pumping distribution technique

Results in Physics, 2019
A modern wideband and flat gain erbium-doped fiber amplifier (EDFA) is suggested and accomplished, by employing a recently fabricated hafnia-bismuth-erbium doped fiber (HB-EDF) and zirconia-erbium doped fiber (Zr-EDF) as a hybrid active fiber.
Alabbas A. Al-Azzawi, Aya A. Almukhtar, B.A. Hamida, S. Das, A. Dhar, M.C. Paul, H. Ahmad, S.W. Harun   +7 more
doaj   +1 more source