Terahertz quantum cascade laser as local oscillator in a heterodyne receiver

被引：142
|
作者：
Hübers, HW
Pavlov, SG
Semenov, AD
Köhler, R
Mahler, L
Tredicucci, A
Beere, HE
Ritchie, DA
Linfield, EH
机构：
[1] German Aerosp Ctr DLR, D-12489 Berlin, Germany
[2] Scuola Normale Super Pisa, I-56126 Pisa, Italy
[3] INFM, NEST, I-56126 Pisa, Italy
[4] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[5] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England
来源：
OPTICS EXPRESS | 2005年 / 13卷 / 15期
关键词：
D O I：
10.1364/OPEX.13.005890
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Terahertz quantum cascade lasers have been investigated with respect to their performance as a local oscillator in a heterodyne receiver. The beam profile has been measured and transformed in to a close to Gaussian profile resulting in a good matching between the field patterns of the quantum cascade laser and the antenna of a superconducting hot electron bolometric mixer. Noise temperature measurements with the hot electron bolometer and a 2.5 THz quantum cascade laser yielded the same result as with a gas laser as local oscillator. (C) 2005 Optical Society of America.
引用
收藏
页码：5890 / 5896
页数：7
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