Development of a low noise heterodyne receiver using two phase-locked THz-QCLs as local oscillators

Yoshihisa Irimajiri,Motohiro Kumagai,Shigeo Nagano,Yoshinori Uzawa,Isao Morohashi,Satoshi Ochiai,Iwao Hosako,Akira Kawakami

doi:10.1109/irmmw-thz.2017.8066949

Development of a low noise heterodyne receiver using two phase-locked THz-QCLs as local oscillators

Yoshihisa Irimajiri, Motohiro Kumagai + Show 6 more

https://doi.org/10.1109/irmmw-thz.2017.8066949

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Publication Date: Aug 1, 2017

Citations: 4

Affiliation: National Institute of Information and Communications Technology

#Hot Electron Bolometer Mixer #Terahertz Quantum Cascade Laser + Show 8 more

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Abstract

We have developed a phase-locking system of a terahertz quantum cascade laser (THz-QCL) using a hot electron bolometer mixer (HEBM) and a terahertz reference such as an amplifier/multiplier chain (AMC) or an optical-comb generator followed by a UTC-PD. We have demonstrated simultaneous phase-locking of two THz-QCLs. The phase-locked THz-QCLs can be used as local oscillators (LOs) of an HEBM. This technique is useful for atmospheric and astronomical observations.

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