Effect of pump laser intensity on optically pumped D2O gas terahertz laser | Zendy

He Zhihong | Zendy; Yao Jian-Quan | Zendy; Huafeng Shi | Zendy; Xiao Huang | Zendy; Xizhang Luo | Zendy; Shaoji Jiang | Zendy; Jianrong Li | Zendy; Peng Wang | Zendy

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Effect of pump laser intensity on optically pumped D2O gas terahertz laser

Author(s) -

He Zhihong,

Yao Jian-Quan,

Huafeng Shi,

Xiao Huang,

Xizhang Luo,

Shaoji Jiang,

Jianrong Li,

Peng Wang

Publication year - 2007

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.56.6451

Subject(s) - tera , laser , far infrared laser , materials science , optics , self pulsation , intensity (physics) , laser pumping , gas laser , range (aeronautics) , injection seeder , physics , quantum mechanics , composite material

Based on the semi-classical theorythe pulsed-laser pumped D2O gas tera-Hz laser was theoretically analyzedthe relation between the intensity of pumping laser and the output tera-Hz laser light was studied and numerically calculated. According to the result of calculationthe intensity of the output tera-Hz laser light increased approximately linearly with that of the input laser in a certain rangebut gradually decreased because of the bottleneck effect when the intensity of the input laser exceeded a fixed valueand for given gas pressurecavity length and operating temperaturean optimal intensity of pumping laser exists. A frequency tuning range of the output signal occurred when the intensity of the input laser was strong enough.

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