Results 21 to 30 of about 1,871,253 (213)

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

Study of millimeter wave phase shift in 40 GHz hybrid mode locked lasers [PDF]

open access: yes, 2009
An investigation into using hybrid mode-locked lasers to implement millimeter wave phase shift is presented. The phase shift is measured directly using a vector network analyzer enabling straightforward characterization of such systems.
Cryan, MJ, Khawaja, BAM
core   +1 more source

Watt-Level Dual-Wavelength Q-Switched Mode-Locked All-Solid-State Tm:CYA Laser

open access: yesFrontiers in Physics, 2020
A passively Q-switched mode-locked all-solid-state Tm:CaYAIO4 (Tm:CYA) laser with a MoS2 saturable absorber is demonstrated for the first time. Employing a typical X-type cavity and output coupling mirror of 9%, when the laser diode pump power is higher ...
Chen Chen   +8 more
doaj   +1 more source

Watt-Level Diode-End-Pumped Self-Mode-Locked Tm,Ho:LLF Laser

open access: yesPhotonics, 2023
A diode-end-pumped self-mode-locked Tm,Ho:LuLiF4 (LLF) laser is demonstrated for the first time, to the best of our knowledge. At the incident pump power of 3.4 W, the stable self-mode-locked operation of the Tm,Ho:LLF laser was realized without any ...
Su Zhang   +7 more
doaj   +1 more source

Mode-locking of mobile discrete breathers [PDF]

open access: yesPhysical Review E, 2005
We study numerically synchronization phenomena of mobile discrete breathers in dissipative nonlinear lattices periodically forced. When varying the driving intensity, the breather velocity generically locks at rational multiples of the driving frequency.
Zueco, D.   +3 more
openaire   +3 more sources

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   +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

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

Investigation of spectrally broad gain multiple-width quantum well material for colliding pulse mode-locked operation [PDF]

open access: yes, 2004
The first colliding pulse mode-locked operation of devices fabricated from broad gain spectrum multiple-width quantum well material is reported. Using multiple-width quantum wells in the active region of the InGaAs/InAlGaAs material system, 35% broader ...
McDougall, S.D.   +3 more
core   +1 more source

Passively mode-locked semiconductor lasers and their applications [PDF]

open access: yes, 2008
In this paper we present some characterizations of passively mode-locked semiconductor lasers. These lasers are multimode and they exhibit a modulation of their output power even though they are DC-biased.
Frederic Surre   +5 more
core   +1 more source

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