Results 31 to 40 of about 240,134 (346)
Short pulse generation with 40 GHz passively-mode locked Q-dashed Fabry-Pérot laser [PDF]
, 2009 Generation of sub-picosecond pulses by a DC-biased passively mode-locked Fabry-Perot laser is demonstrated. By using a tunable band-pass filter, it is observed that the width of the generated pulses decreases in direct proportion to the optical modes ...
Latkowski, Sylwester +5 more
core +1 more source
IEEE Photonics Journal, 2020 In the present work, we report a path of RF stabilization versus delay subject to self-mode-locked (SML) two-section quantum-dash (QDash) lasers emitting at ∼1.55 μm and operating at ∼21 GHz repetition rate using a feedback ...
Haroon Asghar, John G. McInerney
doaj +1 more source
A Mode Locking Theory of the Nyquist Laser
Conference on Lasers and Electro-Optics, 2016 We derive a master equation for a mode-locked Nyquist laser that can emit a sinc function pulse. To derive the master equation, we used a method involving exponential perturbative expressions for gain, loss, and amplitude modulation, and a flat-top optical filter with edge enhancement.
Masataka, Nakazawa, Toshihiko, Hirooka
openaire +2 more sources
Dark solitons in mode-locked lasers [PDF]
Optics Letters, 2011 Dark soliton formation in mode-locked lasers is investigated by means of a power-energy saturation model which incorporates gain and filtering saturated with energy, and loss saturated with power. It is found that general initial conditions evolve into dark solitons under appropriate requirements also met in the experimental observations. The resulting
Ablowitz, M.J. +3 more
openaire +5 more sources
A hybrid mode locked laser as millimetre wave modulated data source for radio-over-fiber systems [PDF]
, 2009 The paper presents a characterisation of a hybrid mode locked laser under external injection locking. It shows how such a system can be used to transmit baseband data without the requirement of an external ...
Cryan, MJ +3 more
core +1 more source
Scientific Reports, 2021 In this work, mode-locked thulium-doped fiber lasers operating in the 2 µm wavelength region were demonstrated using tantalum aluminum carbide (Ta2AlC)-based saturable absorbers (SAs) utilizing the evanescent wave interaction.
H. Ahmad +5 more
doaj +1 more source
Optimum phase noise reduction and repetition rate tuning in quantum-dot mode-locked lasers [PDF]
, 2014 Competing approaches exist, which allow control of phase noise and frequency tuning in mode-locked lasers, but no judgement of pros and cons based on a comparative analysis was presented yet.
T. Habruseva +5 more
semanticscholar +3 more sources
Broadband saturable absorption in germanene for mode-locked Yb, Er, and Tm fiber lasers
Nanophotonics, 2022 Passively mode-locked lasers have been widely investigated as one of the effective methods to obtain ultrashort pulses. As an important part of passively mode-locked fiber lasers, the exploration of 2D material-based saturable absorber has become one of ...
Wang Qingbo +7 more
doaj +1 more source
Graphene Mode-Locked Ultrafast Laser [PDF]
ACS Nano, 2010 Graphene is at the center of a significant research effort. Near-ballistic transport at room temperature and high mobility make it a potential material for nanoelectronics. Its electronic and mechanical properties are also ideal for micro and nanomechanical systems, thin-film transistors and transparent and conductive composites and electrodes. Here we
Sun Z +8 more
openaire +5 more sources
Investigation of spectrally broad gain multiple-width quantum well material for colliding pulse mode-locked operation [PDF]
, 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