Results 51 to 60 of about 227,927 (309)

Recent Advances in the Photonic Integration of Mode-Locked Laser Diodes

open access: yesIEEE Photonics Technology Letters, 2019
Mode-locked fiber and solid state lasers have played an essential role in several scientific and technological developments. The integration of mode-locked lasers on chips could enable their use in a wide range of applications.
K. V. Gasse   +6 more
semanticscholar   +1 more source

Theoretical Comparison of NPR and Hybrid Mode-Locked Soliton Thulium-Doped Fiber Lasers

open access: yesIEEE Photonics Journal, 2017
The evolutions and properties of solitons in a thulium-doped fiber laser hybrid mode-locked by the coaction of nonlinear polarization rotation (NPR) and a semiconductor saturable absorber mirror (SESAM) have been numerically investigated.
Yanjia Lyu   +5 more
doaj   +1 more source

Pulse shortening in an actively mode-locked laser with parity-time symmetry

open access: yesAPL Photonics, 2018
We consider an actively mode-locked laser system with parity-time symmetry. The system consists of two ring cavities, each incorporating an amplitude modulator operating at the same modulation frequency, but with the modulation phases differing by π.
Luqi Yuan   +4 more
semanticscholar   +1 more source

Diode-Pumped Passively Mode-Locked Tm: $\hbox{CaGdAlO}_{4}$ Laser at 2- $\mu \hbox{m}$ Wavelength

open access: yesIEEE Photonics Journal, 2015
We report on a diode-pumped passively mode-locked picosecond Tm:CaGdAlO4 (Tm:CALGO) laser using a semiconductor saturable absorber mirror as the mode locker.
Zhipeng Qin   +6 more
doaj   +1 more source

Mode-Locked Laser Diodes and Their Monolithic Integration

open access: yesIEEE Journal of Selected Topics in Quantum Electronics, 2017
We describe mode locked laser diodes (MLLDs) operating from 40 GHz to >1 THz. Below 40 GHz, operation at the fundamental cavity frequency is appropriate, but at higher frequencies harmonic mode-locking (HML) is used.
J. Marsh, L. Hou
semanticscholar   +1 more source

Ultralow Saturation Intensity Topological Insulator Saturable Absorber for Gigahertz Mode-Locked Solid-State Lasers

open access: yesIEEE Photonics Journal, 2018
The successful demonstration of Q-switched and mode-locked fiber-laser operations using a topological insulator (TI) as saturable absorber (SA) has opened an application window besides TI's originally expected features. However, to date, all-solid-
Yi-Ran Wang   +10 more
doaj   +1 more source

A Compact Self-Injection-Locked Narrow-Linewidth Diode Laser with Narrowband Dielectric Filter

open access: yesApplied Sciences, 2023
The self-injection-locked diode laser can significantly reduce the linewidth down to a sub-100 kHz level but requires optical filtering that is much narrower than the laser cavity linewidth.
Pengfei Fan   +5 more
doaj   +1 more source

Highly-Stable Microwave Generation System Based on Figure-8 Mode-Locked Fiber Laser for Space Applications [PDF]

open access: yesEPJ Web of Conferences
We have developed a spaceborne optical frequency comb based on figure-8 mode-locked fiber laser for highly-stable microwave generation. Our low phase noise, robust and compact mode-locked laser has passed the environment tests for space applications.
Takeuchi Yuichi   +4 more
doaj   +1 more source

Black phosphorus Q-switched and mode-locked mid-infrared Er:ZBLAN fiber laser at 3.5 μm wavelength. [PDF]

open access: yesOptics Express, 2018
With the proposal of dual-wavelength pumping (DWP) scheme, DWP Er:ZBLAN fiber lasers at 3.5 μm have become a fascinating area of research. However, limited by the absence of suitable saturable absorber, passively Q-switched and mode-locked fiber lasers ...
Zhipeng Qin   +8 more
semanticscholar   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

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