Results 61 to 70 of about 30,357 (177)

Studies of (GaAI)As injection lasers operating with an optical fiber resonator [PDF]

, 1980
The characteristics of an optical fiber external resonator in conjunction with (GaAl)As stripe geometry lasers are described. We have observed a 6–10% reduction in the threshold current and have obtained 150 ps pulses at gigahertz repetition rates.
Figueroa, Luis, Lau, Kam Y., Yariv, Amnon, Yen, Huan W.   +3 more
core  

Self-Injection Locking of a Distributed Feedback Laser Diode Using a High-Finesse Fabry-Perot Microcavity

Applied Sciences, 2019
Optical microcavities have been widely used in nonlinear optics, quantum optics, and laser technologies. Here we demonstrate the self-injection locking of a distributed feedback diode laser using home-made high-finesse Fabry-Perot microcavity.
Xing Wei, ZhenDa Xie, Shi-Ning Zhu
doaj   +1 more source

Injection Locking of a Semiconductor Double Quantum Dot Micromaser

, 2015
Emission linewidth is an important figure of merit for masers and lasers. We recently demonstrated a semiconductor double quantum dot (DQD) micromaser where photons are generated through single electron tunneling events.
Gullans, M. J., Liu, Y. -Y., Petta, J. R., Stehlik, J., Taylor, J. M.   +4 more
core   +1 more source

Extended L-Band InAs/InP Quantum-Dash Laser in Millimeter-Wave Applications

Photonics, 2021
We report on the generation and transmission of a millimeter-wave (MMW) signal with a frequency of 28 GHz by employing an InAs/InP quantum-dash dual-wavelength laser diode (QD-DWL) emitting in the ~1610 nm extended L-band window.
Amr M. Ragheb, Qazi Tareq, Emad Alkhazraji, Maged A. Esmail, Saleh Alshebeili, Mohammed Zahed Mustafa Khan   +5 more
doaj   +1 more source

Robust autoresonant excitation in the plasma beat-wave accelerator: a theoretical study

, 2004
A modified version of the Plasma Beat-Wave Accelerator scheme is introduced and analyzed, which is based on autoresonant phase-locking of the nonlinear Langmuir wave to the slowly chirped beat frequency of the driving lasers via adiabatic passage through
A. Akhiezer, A. E. Charman, C. Joshi, J. S. Wurtele, L. Friedland, R. R. Lindberg   +5 more
core   +3 more sources

Energy boost in laser wakefield accelerators using sharp density transitions [PDF]

, 2015
The energy gain in laser wakefield accelerators is limited by dephasing between the driving laser pulse and the highly relativistic electrons in its wake.
Döpp, A., Guillaume, E., Lifschitz, A., Malka, V., Phuoc, K. Ta, Thaury, C.   +5 more
core   +2 more sources

Boolean Computation Using Self-Sustaining Nonlinear Oscillators

, 2015
Self-sustaining nonlinear oscillators of practically any type can function as latches and registers if Boolean logic states are represented physically as the phase of oscillatory signals.
Roychowdhury, Jaijeet
core   +1 more source

Optoelectronic oscillators for communication systems [PDF]

, 2012
We introduce and report recent developments on a novel five port optoelectronic voltage controlled oscillator consisting of a resonant tunneling diode (RTD) optical-waveguide integrated with a laser diode.
Figueiredo, J. M. L., Romeira, Bruno
core  

Stable mode-locked pulses from mid-infrared semiconductor lasers [PDF]

, 2009
We report the unequivocal demonstration of mid-infrared mode-locked pulses from a semiconductor laser. The train of short pulses was generated by actively modulating the current and hence the optical gain in a small section of an edge-emitting quantum ...
A. Belyanin, Barbieri, C. Y. Song, Capasso, Capasso, Choi, Choi, Christine Y. Wang, D. Ham, de Barros, Dudley, F. X. Kärtner, Faist, Federico Capasso, French, Gibson, Gmachl, Gordon, Grant, H. Schneider, H.C. Liu, Haus, Huber, Jianmeng Li, L. Diehl, Liu, Liu, Loza-Alvarez, Lyuba Kuznetsova, M. A. Belkin, Macklin, Maier, Meshulach, Okamoto, P. Grant, Paiella, Paiella, S. Haffouz, Torre, Udem, V. M. Gkortsas, Wang, Warren, X. Li, Z. R. Wasilewski   +44 more
core   +3 more sources

Self-injection-locked thin-film regenerative laser amplifier

iScience
Organic lasers based on distributed feedback (DFB) microcavities have been extensively investigated. However, the application of these lasers is limited by their low output power and large beam divergence. Therefore, laser amplifiers are needed to achieve practically applicable laser intensity and controllable lasing modes for far-field applications ...
Yue Liu, Wenwen Wu, Xinping Zhang
openaire   +3 more sources