Abstract
We demonstrate a tunable all-optical gating phenomenon in a single-section quantum dot laser. The free-running operation of the device is emission from the excited state. Optical injection into the ground state of the material can induce a switch to emission from the ground state with complete suppression of the excited state. If the master laser is detuned from the ground-state emitting frequency, a periodic train of ground-state dropouts can be obtained. These dropouts act as gates for excited-state pulsations: during the dropout, the gate is opened and gain is made available for the excited state, and the gate is closed again when the dropout ends. Numerical simulations using a rate equation model are in excellent agreement with experimental results.
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
B. Tykalewicz, D. Goulding, S. P. Hegarty, G. Huyet, I. Dubinkin, N. Fedorov, T. Erneux, E. A. Viktorov, and B. Kelleher
Opt. Lett. 41(5) 1034-1037 (2016)
M. Dillane, B. Tykalewicz, D. Goulding, B. Garbin, S. Barland, and B. Kelleher
Opt. Lett. 44(2) 347-350 (2019)
Cheng Wang, Ravi Raghunathan, Kevin Schires, Sze-Chun Chan, Luke F. Lester, and Frédéric Grillot
Opt. Lett. 41(6) 1153-1156 (2016)