Widely tunable terahertz source based on intra-cavity frequency mixing in quantum cascade laser arrays

Aiting Jiang; Seungyong Jung; Yifan Jiang; Karun Vijayraghavan; Jae Hyun Kim; Mikhail A. Belkin

doi:10.1063/1.4923374

Widely tunable terahertz source based on intra-cavity frequency mixing in quantum cascade laser arrays

Aiting Jiang, Seungyong Jung, Yifan Jiang, Karun Vijayraghavan, Jae Hyun Kim, Mikhail A. Belkin

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We demonstrate a compact monolithic terahertz source continuously tunable from 1.9 THz to 3.9 THz with the maximum peak power output of 106 μW at 3.46 THz at room temperature. The source consists of an array of 10 electrically tunable quantum cascade lasers with intra-cavity terahertz difference-frequency generation. To increase fabrication yield and achieve high THz peak power output in our devices, a dual-section current pumping scheme is implemented using two electrically isolated grating sections to independently control gain for the two mid-IR pumps.

Original language	English
Article number	261107
Journal	Applied Physics Letters
Volume	106
Issue number	26
DOIs	https://doi.org/10.1063/1.4923374
State	Published - 29 Jun 2015
Externally published	Yes

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title = "Widely tunable terahertz source based on intra-cavity frequency mixing in quantum cascade laser arrays",

abstract = "We demonstrate a compact monolithic terahertz source continuously tunable from 1.9 THz to 3.9 THz with the maximum peak power output of 106 μW at 3.46 THz at room temperature. The source consists of an array of 10 electrically tunable quantum cascade lasers with intra-cavity terahertz difference-frequency generation. To increase fabrication yield and achieve high THz peak power output in our devices, a dual-section current pumping scheme is implemented using two electrically isolated grating sections to independently control gain for the two mid-IR pumps.",

author = "Aiting Jiang and Seungyong Jung and Yifan Jiang and Karun Vijayraghavan and Kim, {Jae Hyun} and Belkin, {Mikhail A.}",

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AU - Jiang, Aiting

AU - Jung, Seungyong

AU - Jiang, Yifan

AU - Vijayraghavan, Karun

AU - Kim, Jae Hyun

AU - Belkin, Mikhail A.

PY - 2015/6/29

Y1 - 2015/6/29

N2 - We demonstrate a compact monolithic terahertz source continuously tunable from 1.9 THz to 3.9 THz with the maximum peak power output of 106 μW at 3.46 THz at room temperature. The source consists of an array of 10 electrically tunable quantum cascade lasers with intra-cavity terahertz difference-frequency generation. To increase fabrication yield and achieve high THz peak power output in our devices, a dual-section current pumping scheme is implemented using two electrically isolated grating sections to independently control gain for the two mid-IR pumps.

AB - We demonstrate a compact monolithic terahertz source continuously tunable from 1.9 THz to 3.9 THz with the maximum peak power output of 106 μW at 3.46 THz at room temperature. The source consists of an array of 10 electrically tunable quantum cascade lasers with intra-cavity terahertz difference-frequency generation. To increase fabrication yield and achieve high THz peak power output in our devices, a dual-section current pumping scheme is implemented using two electrically isolated grating sections to independently control gain for the two mid-IR pumps.

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U2 - 10.1063/1.4923374

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VL - 106

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 26

M1 - 261107

ER -

Widely tunable terahertz source based on intra-cavity frequency mixing in quantum cascade laser arrays

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