Ground-state modulation-enhancement by two-state lasing in quantum-dot laser devices
- Institut für Theoretische Physik, Technische Universität Berlin, 10623 Berlin (Germany)
- Fachbereich Physik, Freie Universität Berlin, 14195 Berlin (Germany)
We predict a significant increase of the 3 dB-cutoff-frequency on the ground-state lasing wavelength for two-state-lasing quantum-dot lasers using a microscopically motivated multi-level rate-equation model. After the onset of the second lasing line, the excited state acts as a high-pass filter, improving the ground-state response to faster modulation frequencies. We present both numerically simulated small-signal and large-signal modulation results and compare the performance of single and two-state lasing devices. Furthermore, we give dynamical arguments for the advantages of two-state lasing on data-transmission capabilities.
- OSTI ID:
- 22399030
- Journal Information:
- Applied Physics Letters, Vol. 106, Issue 19; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dynamic characteristics of two-state lasing quantum dot lasers under large signal modulation
Comparison of dynamic properties of ground- and excited-state emission in p-doped InAs/GaAs quantum-dot lasers
Features of simultaneous ground- and excited-state lasing in quantum dot lasers
Journal Article
·
Thu Oct 15 00:00:00 EDT 2015
· AIP Advances
·
OSTI ID:22399030
+4 more
Comparison of dynamic properties of ground- and excited-state emission in p-doped InAs/GaAs quantum-dot lasers
Journal Article
·
Mon May 05 00:00:00 EDT 2014
· Applied Physics Letters
·
OSTI ID:22399030
+4 more
Features of simultaneous ground- and excited-state lasing in quantum dot lasers
Journal Article
·
Wed Feb 15 00:00:00 EST 2012
· Semiconductors
·
OSTI ID:22399030
+3 more