Kilohertz linewidth from frequency-stabilized mid-infrared quantum cascade lasers

被引:98
作者
Williams, RM
Kelly, JF
Hartman, JS
Sharpe, SW
Taubman, MS
Hall, JL
Capasso, F
Gmachl, C
Sivco, DL
Baillargeon, JN
Cho, AY
机构
[1] Pacific NW Lab, Richland, WA 99352 USA
[2] Natl Inst Stand & Technol, Boulder, CO 80309 USA
[3] Univ Colorado, Joint Inst Lab Astrophys, Boulder, CO 80309 USA
[4] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA
关键词
D O I
10.1364/OL.24.001844
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Frequency stabilization of mid-IR quantum cascade (QC) lasers to the kilohertz level has been accomplished by use of electronic servo techniques. With this active feedback, an 8.5-mu m QC distributed-feedback laser is locked to the side of a rovibrational resonance of nitrous oxide (N2O) at 1176.61 cm(-1). A stabilized frequency-noise spectral density of 42 Hz/root Hz has been measured at 100 kHz; the calculated laser linewidth is 12 kHz. (C) 1999 Optical Society of America OCIS codes: 000.2170, 120.5050, 120.4820, 140.5960, 000.2170.
引用
收藏
页码:1844 / 1846
页数:3
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