Results 111 to 120 of about 240,134 (346)
Observation of Dissipative Soliton Resonance in a Net-Normal Dispersion Figure-of-Eight Fiber Laser
IEEE Photonics Journal, 2013 High-energy square pulses operating in dissipative soliton resonance region are experimentally observed in an erbium-doped figure-of-eight fiber laser with large net-normal dispersion for the first time to our knowledge. The dissipative soliton resonance
Jin-hui Yang +6 more
doaj +1 more source
Class-A mode-locked lasers: Fundamental solutions [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2017 We consider a delay differential equation (DDE) model for mode-locked operation in class-A semiconductor lasers containing both gain and absorber sections. The material processes are adiabatically eliminated as these are considered fast in comparison to the delay time for a long cavity device.
Anton V. Kovalev, Evgeny A. Viktorov
openaire +3 more sources
Ultrashort pulse generation by semiconductor mode-locked lasers at 760 nm.
Optics Express, 2014 We demonstrate the first semiconductor mode-locked lasers for ultrashort pulse generation at the 760 nm waveband. Multi-section laser diodes based on an AlGaAs multi-quantum-well structure were passively mode-locked, resulting in the generation of pulses
Huolei Wang +9 more
semanticscholar +1 more source
External cavity mode structure of a two-mode VCSEL subject to optical feedback [PDF]
, 2007 We consider a multi-transverse-mode vertical-cavity surface-emitting laser (VCSEL) subject to optical feedback. The system is modeled by a partial differential equation for the spatial carrier population, which is coupled to delay differential equations ...
Green, K +5 more
core +1 more source
Miniature Soft Robot With Magnetically Reprogrammable Surgical Functions
Advanced Materials, EarlyView.Miniature soft robots have great prospects to revolutionize minimally invasive treatments. Here we present a miniature soft robot, which can be reprogrammed to perform five surgical functionalities with six‐degrees‐of‐freedom motions. This soft robot can prospectively make minimally invasive surgery considerably safer and painless, and enable ...
Chelsea Shan Xian Ng +4 more
wiley +1 more source
Femtosecond Mode-locked Fiber Laser at 1 μm Via Optical Microfiber Dispersion Management
Scientific Reports, 2018 Mode-locked Yb-doped fiber lasers around 1 μm are attractive for high power applications and low noise pulse train generation. Mode-locked fiber lasers working in soliton and stretched-pulse regime outperform others in terms of the laser noise ...
Lizhen Wang +7 more
doaj +1 more source
Analytic Technique For Active Mode-Locked Fiber Lasers [PDF]
Engineering and Technology Journal, 2010 In this work, Aِmplitude modulation mode-locked fiber laser isstudied,by using Ytterbium Doped Fiber Laser, single mode fiber,operating with 1055 nm wavelength with 976 nm optical pump and AMMode-Locked by optical modulators.
Mohammed S. Mehde +2 more
doaj +1 more source
Novel semiconductor based light sources [PDF]
, 2008 The research described in this thesis relates to the design, fabrication and testing of novel semiconductor-based light sources that have been designed for the generation of infra-red light.
McRobbie, Andrew Douglas
core
Advanced Materials, EarlyView.Oxygen‐releasing hydrogels are widely used to support cell survival in 3D cultures and to promote wound healing. However, incorporating catalase to convert H2O2 into O2 often generates additional oxygen bubbles, leading to material instability which rarely addressed.
Sukulya Bunuasunthon +3 more
wiley +1 more source
Soliton mode-locked Er:Yb:glass laser
Optics Letters, 2005 We report on a simple diode-pumped passively mode-locked Er:Yb:glass laser generating transform-limited 1536-nm solitons of 255-fs duration with a repetition rate of 50 MHz and average power of 58 mW. We also discuss timing jitter and the trade-off between short pulses and high output power in these lasers.
Spühler GJ +5 more
openaire +3 more sources