Results 21 to 30 of about 3,985,486 (233)

Stable femtosecond pulse generation relying on a simple NALM-based all PM Tm-doped fiber laser

open access: yesResults in Optics, 2022
Herein, an ultrafast mode-locked Tm-doped fiber laser with all polarization-maintaining (PM) fiber relying on nonlinear amplifying loop mirror was firstly presented.
Meng Wang   +5 more
doaj   +1 more source

All-Fiber Dual-Wavelength Mode-Locked Laser Using a Bend-Induced-Birefringence Lyot-Filter as Gain-Tilt Equalizer

open access: yesIEEE Photonics Journal, 2019
Multi-wavelength fiber lasers have emerged as a promising light source for the application in wavelength division multiplexing communication, terahertz wave generation and optical sensing due to high efficiency and robustness.
Yuanjun Zhu   +4 more
doaj   +1 more source

TE-like mode analysis of microsystem InGaAsP/InP semiconductor resonator generating 20 GHz repetition rate pulse trains

open access: yesResults in Physics, 2018
In microsystem technologies, the microring resonators (MRRs) can be used as a filter device. A wavelength-selective modified add-drop MRR filter is used for adding and dropping a particular wavelength in order to control the light propagation within the ...
Iraj S. Amiri   +3 more
doaj   +1 more source

A millimetre wave phase shifter using a 40GHz hybrid mode locked laser [PDF]

open access: yes, 2008
In this paper, electrical injection locking of a modelocked laser is used to create a millimetre wave phase shifter. The phase shift is measured directly using a vector network analyzer enabling straightforward characterization of such systems.
Martin J. Cryan   +3 more
core   +1 more source

Sub-100 fs watt-level Kerr-lens mode-locked Yb:CaYAlO4 laser with a gigahertz repetition rate

open access: yesFrontiers in Physics, 2023
We report a 1.04 GHz high-power Kerr-lens mode-locked Yb:CaYAlO4 laser pumped by a single-mode fiber laser at 976 nm. Based on a bow-tie cavity, stable unidirectional mode-locked operation is obtained with an output coupler of 1.6%.
Ziyue Zhang   +9 more
doaj   +1 more source

Spatial mode switchable, wavelength tunable erbium doped fiber laser incorporating a spatial light modulator [PDF]

open access: yes, 2014
We present a 2-mode group, switchable spatial mode erbium doped fiber laser incorporating a spatial light modulator. The laser wavelength can be tuned using an intra-cavity wavelength selective filter and provides >10dB extinction ratio between LP01 ...
Daniel, J.M.O.   +6 more
core   +2 more sources

High-Sensitivity Demodulation of Fiber-Optic Acoustic Emission Sensor Using Self-Injection Locked Diode Laser

open access: yesIEEE Photonics Journal, 2022
We demonstrate the use of a self-injection locked distributed feedback (DFB) diode laser for high-sensitivity detection of acoustic emission (AE) using a fiber-coil Fabry-Perot interferometer (FPI) sensor.
Farzia Karim   +3 more
doaj   +1 more source

Wavelength-Switchable and Wavelength-Tunable All-Normal-Dispersion Mode-Locked Yb-Doped Fiber Laser Based on Single-Walled Carbon Nanotube Wall Paper Absorber

open access: yesIEEE Photonics Journal, 2012
We demonstrate a compact wavelength-tunable and -switchable mode-locked Yb-doped fiber (YDF) laser based on single-walled carbon nanotube (SWCNT) wall paper absorber. Two mechanisms coexist in the fiber cavity.
Xiao-Hui Li   +11 more
doaj   +1 more source

Sub-100 fs pulse generation from dispersion-managed mode-locked Er:ZBLAN fiber laser at 2.8 μm

open access: yesHigh Power Laser Science and Engineering
We demonstrate the sub-100 fs pulse generation from a dispersion-managed mode-locked Er:ZBLAN fiber laser at 2.8 μm. Both numerical simulation and experiment demonstrate that stretched-pulse and dissipative soliton mode lockings coexist in the near-zero ...
Xiabing Zhou, Zhipeng Qin, Guoqiang Xie
doaj   +1 more source

Actively mode-locked multiwavelength fibre ring laser incorporating a lyot filter, hybrid gain medium and birefringence compensated LiNbO3 modulator [PDF]

open access: yes, 2007
A lyot filter based actively mode-locked multiwavelength fibre ring laser with a hybrid gain medium, consisting of an SOA and EDFA, is presented. Simultaneous mode-locking of up to 8 wavelength channels at 10 GHz is realised using a LiNbO3 based Mach ...
Anandarajah, Prince M.   +12 more
core   +2 more sources

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