Results 131 to 140 of about 227,927 (309)

Random Search Algorithm-Assisted Automatic Mode-Locked Fiber Lasers

Photonics
Automatic mode-locking is a crucial approach for achieving ultrashort pulses in fiber lasers. Here, a random search algorithm was developed, and an automatic mode-locked laser was constructed.
Penghui Yang, Yanrong Song, Lin Mao, Ruyue You   +3 more
doaj   +1 more source

Ultra-fast optical ranging using quantum-dash mode-locked laser diodes. [PDF]

Sci Rep, 2022
Trocha P, Kemal JN, Gaimard Q, Aubin G, Lelarge F, Ramdane A, Freude W, Randel S, Koos C.   +8 more
europepmc   +1 more source

Mode-locked Tm fiber laser using SMF-SIMF-GIMF-SMF fiber structure as a saturable absorber.

Optics Express, 2017
We demonstrate a mode-locked all-fiber Tm laser using a single mode-step index multimode-graded-index multimode-single mode fiber structure as a saturable absorber based on the nonlinear multimodal interference.
Huanhuan Li, Zhaokun Wang, Can Li, Junjie Zhang, Shiqing Xu   +4 more
semanticscholar   +1 more source

Self‐Powered Visible‐Blind Graphene/NiO/ZnO UV‐C Photodiodes

Advanced Optical Materials, EarlyView.
“A scalable architecture for self‐powered UV‐C photodiodes integrates defect‐engineered p‐NiO/n‐ZnO heterojunctions with highly UV‐C transparent graphene anodes. The type‐II band alignment combined with the built‐in electrical field enables robust zero‐bias charge separation.
Umut Kaya, Leon Lörcher, Yasaman Jarrahizadeh, Axel Lorke, Wolfgang Mertin, Gerd Bacher   +5 more
wiley   +1 more source

Passively Mode-Locked Erbium-Doped Fiber Laser and Application in Laser Thrombolysis

Photonics
Fiber lasers have been widely used in surgery with the development of fiber photonics. Since the human body is prone to myocardial infarction caused by blood clots, laser thrombolysis was proposed as a safe and efficient treatment.
Xiaoli Zhao, Linyu Cong, Congyu Zhang, Chenxi Zhang, Ijaz Ahmad, Bo Fu   +5 more
doaj   +1 more source

Efficient Wavelength-Tunable Gain-Switching and Gain-Switched Mode-Locking Operation of a Heavily Er³⁺-Doped ZBLAN Mid-Infrared Fiber Laser

IEEE Photonics Journal, 2017
We report on an efficient wavelength-tunable gain-switched and gain-switched mode-locked Er3+-doped double-clad fiber laser with a linear cavity. Stable gain-switching and gain-switched mode-locking were achieved with slope efficiencies of 28.6% and 34.5%
Yanlong Shen, Yishan Wang, Kunpeng Luan, Hongwei Chen, Mengmeng Tao, Jinhai Si   +5 more
doaj   +1 more source

Hybrid modeling approach for mode-locked laser diodes with cavity dispersion and nonlinearity. [PDF]

Sci Rep, 2021
Cuyvers S, Poelman S, Van Gasse K, Kuyken B.   +3 more
europepmc   +1 more source

Harnessing Ultrafast Optical Pulses for 3D Microfabrication by Selective Tweezing and Immobilization of Colloidal Particles in an Integrated System

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna, Jieliyue Sun, Wenyu Liu, Robert H. Hurt, Kimani C. Toussaint Jr.   +4 more
wiley   +1 more source

Mode-locked multichromatic x rays in a seeded free-electron laser for single-shot x-ray spectroscopy

Physical Review Special Topics. Accelerators and Beams, 2012
We present the promise of generating gigawatt mode-locked multichromatic x rays in a seeded free-electron laser (FEL). We show that, by using a laser to imprint periodic modulation in electron beam phase space, a single-frequency coherent seed can be ...
Dao Xiang, Yuantao Ding, Tor Raubenheimer, Juhao Wu   +3 more
doaj   +1 more source

Modal gain characteristics of a two-section InGaAs/GaAs double quantum well passively mode-locked laser with asymmetric waveguide. [PDF]

Sci Rep, 2022
Qiao Z, Li X, Sia JXB, Wang W, Wang H, Li Z, Zhao Z, Li L, Gao X, Bo B, Qu Y, Liu G, Liu C.   +12 more
europepmc   +1 more source