Results 31 to 40 of about 2,304,314 (292)

Active mode-locking via pump modulation in a Tm-doped fiber laser

open access: yesAPL Photonics, 2016
We propose and experimentally realize a new class of actively mode-locking technique using pump modulation for rare-earth doped fiber lasers. A Tm-doped fiber laser at 2 μm is mode-locked using the proposed active mode-locking via pump modulation ...
Yu Wang, Sze Y. Set, Shinji Yamashita
doaj   +1 more source

PT-symmetric mode-locking [PDF]

open access: yesOptics Letters, 2016
Parity-time (PT) symmetry is one of the most important accomplishments in optics over the past decade. Here the concept of PT mode-locking (ML) of a laser is introduced, in which active phase-locking of cavity axial modes is realized by asymmetric mode coupling in a complex time crystal. PT ML shows a transition from single- to double-pulse emission as
openaire   +2 more sources

Bound Soliton Fiber Laser Mode-Locking Without Saturable Absorption Effect

open access: yesIEEE Photonics Journal, 2016
Stable bound soliton laser mode-locking is experimentally demonstrated in an environmentally stable hybrid mode-locked Er-doped fiber laser without incorporating (equivalent) nonlinear saturable absorption effects.
Cheng-Jhih Luo   +2 more
doaj   +1 more source

Passively Mode-Locked Raman Laser [PDF]

open access: yesPhysical Review Letters, 2010
We report on the observation of a novel mode locked optical comb generated at the Raman offset (Raman comb) in an optically pumped crystalline whispering gallery mode resonator. Mode locking is confirmed via measurement of the radio-frequency beat note produced by the optical comb on a fast photodiode.
Liang, W.   +5 more
openaire   +3 more sources

Experimental Investigation of the Wavelength Tunability in All-Normal-Dispersion Ytterbium-Doped Mode-Locked Fiber Lasers

open access: yesIEEE Photonics Journal, 2013
The wavelength tunability of all-normal-dispersion (ANDi) ytterbium (Yb)-doped mode-locked fiber laser is experimentally investigated, where the laser is mode-locked by nonlinear polarization rotation and the wavelength is adjusted by an intracavity ...
Xiaosheng Xiao   +3 more
doaj   +1 more source

Mode-Locking Thulium-Doped Fiber Laser With 1.78-GHz Repetition Rate Based on Combination of Nonlinear Polarization Rotation and Semiconductor Saturable Absorber Mirror

open access: yesIEEE Photonics Journal, 2017
We experimentally demonstrate a passively mode-locking thulium-doped fiber laser based on the combination of the nonlinear polarization rotation (NPR) and the semiconductor saturable absorber mirror (SESAM).
Jia Qingsong   +6 more
doaj   +1 more source

Irrational Mode Locking in Quasiperiodic Systems [PDF]

open access: yesPhysical Review Letters, 2007
4 pages, 3 figures, 1 table; revision: 2 figures modified, reference added, minor ...
Middleton, Alan, Thomas, Creighton K.
openaire   +3 more sources

Mode-locking induced by coherent driving in fiber lasers

open access: yes, 2022
The generation of stable short optical pulses in mode-locked lasers is of tremendous importance for many applications. Mode-locking is a broad concept that encompasses different processes enabling short pulse formation.
Carlos Mas Arabí (14382243)   +4 more
core   +1 more source

Switchable Dual-Comb Fiber Laser Based on Sagnac Loop for Wavelength-Multiplexing and Polarization-Multiplexing

open access: yesPhotonics
We present an all-fiber erbium-doped mode-locked laser capable of switching among continuously tunable single-pulse mode-locking, wavelength-multiplexing asynchronous-pulse mode-locking, and polarization-multiplexing asynchronous-pulse mode-locking ...
Qianyu Yao   +4 more
doaj   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

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