Title :
Broadly tunable quantum-dot based ultra-short pulse laser system with different diffraction grating orders
Author :
Alhazime, A. ; Ding, Yi ; Nikitichev, D.I. ; Fedorova, Ksenia A. ; Krestnikov, I.L. ; Krakowski, M. ; Rafailov, E.U.
Author_Institution :
Photonics & Nanosci. Group, Univ. of Dundee, Dundee, UK
Abstract :
A broadly tunable quantum-dot based ultra-short pulse master oscillator power amplifier with different diffraction grating orders as an external-cavity resonance feedback is studied. A broader tuning range, narrower optical spectra as well as higher peak power spectal density (maximun of 1.37 W/nm) from the second-order diffraction beam are achieved compared to those from the first-order diffraction beam in spite of slightly broader pulse duration from the second-order diffraction.
Keywords :
diffraction gratings; high-speed optical techniques; laser cavity resonators; laser feedback; laser tuning; quantum dot lasers; semiconductor optical amplifiers; broadly tunable quantum-dot based ultra-short pulse laser system; diffraction grating orders; external cavity resonance feedback; first-order diffraction beam; optical spectra; peak power spectral density; pulse duration; second-order diffraction beam; tuning range; ultrashort pulse master oscillator power amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.3761
