Abstract
| Original language | English |
|---|---|
| Journal | I E E E Journal of Quantum Electronics |
| Volume | 49 |
| Issue number | 11 |
| Pages (from-to) | 945-954 |
| ISSN | 0018-9197 |
| DOIs | |
| Publication status | Published - 2013 |
Keywords
- Laser theory
- Quantum dot lasers
- Atom lasers
- Nanoscale devices
Cite this
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Dynamical Properties of Nanolasers Based on Few Discrete Emitters. / Lund, Anders Mølbjerg; Nielsen, Per Kær; Lorke, Michael; Tromborg, Bjarne; Mørk, Jesper.
In: I E E E Journal of Quantum Electronics, Vol. 49, No. 11, 2013, p. 945-954.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Dynamical Properties of Nanolasers Based on Few Discrete Emitters
AU - Lund, Anders Mølbjerg
AU - Nielsen, Per Kær
AU - Lorke, Michael
AU - Tromborg, Bjarne
AU - Mørk, Jesper
PY - 2013
Y1 - 2013
N2 - We investigate the dynamical properties of nanolasers comprising a few two-level emitters coupled to an optical cavity. A set of rate equations is derived, and is shown to agree very well with a solution of the full master equation model. Using a linearized version of these rate equations, we can analytically express the response of the nanolaser to a modulation of the pumping rate. These results are compared with the modulation response obtained directly from the master equation using a novel method. We show that contrary to conventional semiconductor lasers, the nanolaser is typically over-damped and displays a dip in the modulation bandwidth as the two-level systems become inverted. Both these features can be traced back to the use of discrete emitters that are incoherently pumped.
AB - We investigate the dynamical properties of nanolasers comprising a few two-level emitters coupled to an optical cavity. A set of rate equations is derived, and is shown to agree very well with a solution of the full master equation model. Using a linearized version of these rate equations, we can analytically express the response of the nanolaser to a modulation of the pumping rate. These results are compared with the modulation response obtained directly from the master equation using a novel method. We show that contrary to conventional semiconductor lasers, the nanolaser is typically over-damped and displays a dip in the modulation bandwidth as the two-level systems become inverted. Both these features can be traced back to the use of discrete emitters that are incoherently pumped.
KW - Laser theory
KW - Quantum dot lasers
KW - Atom lasers
KW - Nanoscale devices
U2 - 10.1109/JQE.2013.2282464
DO - 10.1109/JQE.2013.2282464
M3 - Journal article
VL - 49
SP - 945
EP - 954
JO - I E E E Journal of Quantum Electronics
JF - I E E E Journal of Quantum Electronics
SN - 0018-9197
IS - 11
ER -