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 secondorder diffraction. © The Institution of Engineering and Technology 2013.
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Alhazime, A., Ding, Y., Nikitichev, D. I., Fedorova, K. A., Krestnikov, I. L., Krakowski, M., & Rafailov, E. U. (2013). Broadly tunable quantum-dot based ultra-short pulse laser system with different diffraction grating orders. Electronics Letters, 49(5), 364–366. https://doi.org/10.1049/el.2012.3761