Phase locking of a 3.4 THz third-order distributed feedback quantum cascade laser using a room-temperature superlattice harmonic mixer

被引：39

作者：

Hayton, D. J. ^{[1
]}

Khudchencko, A. ^{[1
]}

Pavelyev, D. G. ^{[2
]}

Hovenier, J. N. ^{[3
]}

Baryshev, A. ^{[1
]}

Gao, J. R. ^{[1
,3
]}

Kao, T. Y. ^{[4
]}

Hu, Q. ^{[4
]}

Reno, J. L. ^{[5
]}

Vaks, V. ^{[6
]}

机构：

[1] Univ Groningen, SRON Netherlands Inst Space Res, NL-9747 AD Groningen, Netherlands

[2] Lobachevskii State Univ Nizhny Novgorod, Nizhnii Novgorod 603950, Russia

[3] Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands

[4] MIT, Dept Elect Engn & Comp Sci, Elect Res Lab, Cambridge, MA 02139 USA

[5] Sandia Natl Labs, CINT, Albuquerque, NM 87185 USA

[6] Russian Acad Sci, Inst Phys Microstruct, Nizhnii Novgorod 603950, Russia

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 05期

关键词：

FREQUENCY; COMB;

D O I：

10.1063/1.4817319

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the phase locking of a 3.4 THz third-order distributed feedback quantum cascade laser (QCL) using a room temperature GaAs/AlAs superlattice diode as both a frequency multiplier and an internal harmonic mixer. A signal-to-noise level of 60 dB is observed in the intermediate frequency signal between the 18th harmonic of a 190.7 GHz reference source and the 3433 GHz QCL. A phase-lock loop with 7MHz bandwidth results in QCL emission that is 96% locked to the reference source. We characterize the QCL temperature and electrical tuning mechanisms and show that frequency dependence of these mechanisms can prevent phase-locking under certain QCL bias conditions. (C) 2013 AIP Publishing LLC.

引用

页数：5

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