Optical Characteristics of Second-Order Distributed Feedback Terahertz Quantum Cascade Laser

Xin, 李鑫 Li; Jian, 王健 Wang; Ning, 杨宁 Yang; Weidong, 楚卫东 Chu

doi:10.3788/aos201838.0414002

光学学报

2018

DOI: 10.3788/aos201838.0414002

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Optical Characteristics of Second-Order Distributed Feedback Terahertz Quantum Cascade Laser

李鑫 Li Xin¹,

王健 Wang Jian²,

杨宁 Yang Ning³

et al.

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2023

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Output characteristics of distributed feedback 3.0 terahertz quantum cascade lasers

Luo¹,

Jiang²,

Zhan³

et al. 2023

Appl. Opt.

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Distributed feedback quantum cascade lasers lased at 3.0 THz were prepared and their output performance was analyzed. The optimized grating parameters were obtained by theoretical analyses. Single-mode emission was obtained and a maximum output power of more than 166 mW at 15 K was achieved. The corresponding threshold current density was 257 A / c m 2 , and the side-mode suppression ratio was more than 15 dB. By changing the input voltage, the frequency was stable with a variation of less than 3 GHz. A beam with obviously fast and slow axis features was observed. Further improvement and the potential application of distributed feedback quantum cascade lasers are discussed.

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Output characteristics of distributed feedback 3.0 terahertz quantum cascade lasers

Luo¹,

Jiang²,

Zhan³

et al. 2023

Appl. Opt.

View full text Add to dashboard Cite

show abstract

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Optical Characteristics of Second-Order Distributed Feedback Terahertz Quantum Cascade Laser

Cited by 1 publication

References 0 publications

Output characteristics of distributed feedback 3.0 terahertz quantum cascade lasers

Output characteristics of distributed feedback 3.0 terahertz quantum cascade lasers

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