Results 11 to 20 of about 60,818 (294)

125 Gbit/s discretely tunable InP-on-silicon filtered feedback laser with sub-nanosecond wavelength switching times [PDF]

open access: yes, 2018
A heterogeneously integrated InP-on-silicon fast tunable filtered feedback laser is demonstrated. The laser device consists of a main Fabry-Pérot cavity connected to an integrated arrayed waveguide grating of which the outputs form external cavities in ...
  +3 more
core   +2 more sources

Investigation of ultrafast laser photonic material interactions: challenges for directly written glass photonics [PDF]

open access: yes, 2008
Currently, direct-write waveguide fabrication is probably the most widely studied application of femtosecond laser micromachining in transparent dielectrics.
Ams, M.   +6 more
core   +2 more sources

Tunable 60 GHz Multiwavelength Brillouin Erbium Fiber Laser

open access: yesApplied Sciences, 2023
An experimental study of a tunable 60 GHz multiwavelength Brillouin erbium fiber laser is presented in this paper. Two unidirectional ring laser cavities and two pre-amplification laser cavities are used.
Mohammed K. Awsaj   +6 more
doaj   +1 more source

Performance of a MOPA laser system for photocathode research [PDF]

open access: yes, 1993
A Nd:YLF laser system with frequency doubled output is described. Several aspects concerning energy and stability of the pulses will be discussed. The system consists of a CW mode locked Nd:YLF oscillator and two double pass amplifiers having a total ...
Ernst, G.J., Mols, R.F.X.A.M.
core   +2 more sources

All-optical logic gates with 1550nm Fabry-Perot and distributed feedback semiconductor laser amplifiers [PDF]

open access: yes, 2005
The optical bistability occurring in laser diode amplifiers is used to design an all-optical logic gate capable to provide the whole set of logic functions. The structure of the reported logic gate is based on two connected 1550nm laser amplifiers (Fabry-
González Marcos, Ana   +2 more
core   +1 more source

Diode-Pumped High Energy and High Average Power All-Solid-State Picosecond Amplifier Systems

open access: yesApplied Sciences, 2015
We present our research on the high energy picosecond laser operating at a repetition rate of 1 kHz and the high average power picosecond laser running at 100 kHz based on bulk Nd-doped crystals.
Jiaxing Liu   +5 more
doaj   +1 more source

Hybrid Nd:YAG/Nd:LuAG Nanosecond Laser Oscillator and Amplifier

open access: yesFrontiers in Physics, 2022
We demonstrate an active mirror Q-switched laser with Nd:YAG/Nd:LuAG hybrid gain media, achieving a laser output of 1 J, 10 Hz, 8 ns. Using this hybrid oscillator as well as Nd:YAG and Nd:LuAG amplifiers, the difference in extraction efficiency of hybrid
Xinxing Lei   +5 more
doaj   +1 more source

Room-Temperature Continuous-Wave Vertical-Cavity Single-Quantum-Well Microlaser Diodes [PDF]

open access: yes, 1989
Room-temperature continuous and pulsed lasing of vertical-cavity, single-quantum-well, surface-emitting microlasers is achieved at ~983nm. The active Ga[sub][0-8]In[sub][0-2]As single quantum well is 100 [angstroms] thick.
Florez, L. T.   +5 more
core   +1 more source

Photonic crystal fiber amplifiers for high power ultrafast fiber lasers

open access: yesNanophotonics, 2013
In recent years, ultrafast laser systems using large-mode-area fiber amplifiers delivering several hundreds of watts of average power has attracted significant academic and industrial interest.
Alkeskjold Thomas T.   +8 more
doaj   +1 more source

Continuous-wave green laser irradiation to form PbS quantum dots in glass

open access: yesJournal of Non-Crystalline Solids: X, 2022
PbS quantum dots (QDs) are appropriate for use in tunable optoelectronic devices such as optical amplifiers because of their large Bohr exciton radii (18 nm).
Jong Heo   +3 more
doaj   +1 more source

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