Narrow-linewidth quantum cascade laser at 8.6 μm

被引:29
|
作者
Fasci, Eugenio [1 ]
Coluccelli, Nicola [2 ,3 ]
Cassinerio, Marco [2 ,3 ]
Gambetta, Alessio [2 ,3 ]
Hilico, Laurent [4 ,5 ]
Gianfrani, Livio [1 ]
Laporta, Paolo [2 ,3 ]
Castrillo, Antonio [1 ]
Galzerano, Gianluca [2 ,3 ]
机构
[1] Univ Naples 2, Dipartimento Matemat & Fis, I-81100 Caserta, Italy
[2] CNR, Ist Foton & Nanotecnol, I-20133 Milan, Italy
[3] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy
[4] UEVE, Lab Kastler Brossel, F-91025 Evry, France
[5] Univ Paris 06, CNRS, ENS, F-75252 Paris, France
关键词
ENHANCED ABSORPTION-SPECTROSCOPY; FREQUENCY NOISE; ROOM-TEMPERATURE; OPTICAL-FEEDBACK; DIODE-LASER; STABILIZATION;
D O I
10.1364/OL.39.004946
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report on a narrow-linewidth distributed-feedback quantum cascade laser at 8.6 mu m that is optical-feedback locked to a high-finesse V-shaped cavity. The spectral purity of the quantum cascade laser is fully characterized using a high-sensitivity optical frequency discriminator, leading to a 1 ms linewidth of less than 4 kHz and a minimum laser frequency noise spectral density as low as 0.01 Hz(2)/Hz for Fourier frequencies larger than 100 kHz. The cumulative standard deviation of the laser intensity is better than 0.1% over an integration bandwidth from 2 Hz to 100 MHz. (C) 2014 Optical Society of America
引用
收藏
页码:4946 / 4949
页数:4
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