Linewidth and tuning characteristics of terahertz quantum cascade lasers

被引：106

作者：

Barkan, A

Tittel, FK

Mittleman, DM

Dengler, R

Siegel, PH

Scalari, G

Ajili, L

Faist, J

Beere, HE

Linfield, EH

Davies, AG

Ritchie, DA

机构：

[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77251 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[3] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland

[4] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

OPTICS LETTERS | 2004年 / 29卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1364/OL.29.000575

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have measured the spectral linewidths of three continuous-wave quantum cascade lasers operating at terahertz frequencies by heterodyning the free-running quantum cascade laser with two far-infrared gas lasers. Beat notes are detected with a GaAs diode mixer and a microwave spectrum analyzer, permitting very precise frequency measurements and giving instantaneous linewidths of less than similar to30 kHz. Characteristics are also reported for frequency tuning as the injection current is varied. (C) 2004 Optical Society of America.

引用

页码：575 / 577

页数：3

共 21 条

[1] Continuous-wave operation of far-infrared quantum cascade lasers [J].

Ajili, L ;

Scalari, G ;

Hofstetter, D ;

Beck, M ;

Faist, J ;

Beere, H ;

Davies, G ;

Linfield, E ;

Ritchie, D .

ELECTRONICS LETTERS, 2002, 38 (25) :1675-1676

[2] QUANTUM CASCADE LASER [J].

FAIST, J ;

CAPASSO, F ;

SIVCO, DL ;

SIRTORI, C ;

HUTCHINSON, AL ;

CHO, AY .

SCIENCE, 1994, 264 (5158) :553-556

[3] Investigation of the spectral width of quantum cascade laser emission near 5.2 μm by a heterodyne experiment [J].

Ganser, H ;

Frech, B ;

Jentsch, A ;

Mürtz, M ;

Gmachl, C ;

Capasso, F ;

Sivco, DL ;

Baillargeon, JN ;

Hutchinson, AL ;

Cho, AY ;

Urban, W .

OPTICS COMMUNICATIONS, 2001, 197 (1-3) :127-130

[4] Quantum cascade lasers emitting at lambda greater than 100 μm [J].

Köhler, R ;

Tredicucci, A ;

Beltram, F ;

Beere, HE ;

Linfield, EH ;

Ritchie, DA ;

Davies, AG .

ELECTRONICS LETTERS, 2003, 39 (17) :1254-1255

[5] Terahertz semiconductor-heterostructure laser [J].

Köhler, R ;

Tredicucci, A ;

Beltram, F ;

Beere, HE ;

Linfield, EH ;

Davies, AG ;

Ritchie, DA ;

Iotti, RC ;

Rossi, F .

NATURE, 2002, 417 (6885) :156-159

[6] Methane concentration and isotopic composition measurements with a mid-infrared quantum-cascade laser [J].

Kosterev, AA ;

Curl, RF ;

Tittel, FK ;

Gmachl, C ;

Capasso, F ;

Sivco, DL ;

Baillargeon, JN ;

Hutchinson, AL ;

Cho, AY .

OPTICS LETTERS, 1999, 24 (23) :1762-1764

[7] Effective utilization of quantum-cascade distributed-feedback lasers in absorption spectroscopy [J].

Kosterev, AA ;

Curl, RF ;

Tittel, FK ;

Gmachl, C ;

Capasso, F ;

Sivco, DL ;

Baillargeon, JN ;

Hutchinson, AL ;

Cho, AY .

APPLIED OPTICS, 2000, 39 (24) :4425-4430

[8] T-ray imaging [J].

Mittleman, DM ;

Jacobsen, RH ;

Nuss, MC .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 1996, 2 (03) :679-692

[9] Free-running frequency stability of mid-infrared quantum cascade lasers [J].

Myers, TL ;

Williams, RM ;

Taubman, MS ;

Gmachl, C ;

Capasso, F ;

Sivco, DL ;

Baillargeon, JN ;

Cho, AY .

OPTICS LETTERS, 2002, 27 (03) :170-172

[10]

Petersen F. R., 1975, IEEE Journal of Quantum Electronics, VQE-11, P838, DOI 10.1109/JQE.1975.1068525

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