物理学报2012,Vol.61Issue(3):201-206,6.
GaP波导型发射器产生频率可调谐太赫兹脉冲
Frequency tunable terahertz pulses generated from GaP waveguide emitter
摘要
Abstract
We report on a frequency-tunable terahertz pulse train generated from a rectangular GaP waveguide emitter pumped by a pulse width tunable femtosecond photonic crystal fiber amplifier.The THz frequency can be tuned by varying the pump pulse duration.The dispersion of the emitter can be controlled via the geometry of the waveguide,and the coherent buildup length can be increased to scale up the output power.Waveguides with different cross sections can be used to tune the THz spectrum.Combined with the pump pulse duration tuning technique,THz pulses with a precisely tunable frequency can be obtained.In the experiment,tunable THz radiation is obtained from a GaP waveguide emitter with a cross section of 1 mm×0.7 mm.Finally,a GaP emitter array is designed to achieve a wider tuning range.关键词
超快太赫兹波/频率调谐/GaP波导/光子晶体光纤飞秒激光Key words
ultrafast terahertz wave/frequency tuning/GaP waveguide/femtosecond photonic crystal fiber laser分类
信息技术与安全科学引用本文复制引用
刘丰,王清月,李毅,石俊凯,胡晓堃,李江,栗岩锋,邢岐荣,胡明列,柴路..GaP波导型发射器产生频率可调谐太赫兹脉冲[J].物理学报,2012,61(3):201-206,6.基金项目
国家重点基础研究发展计划(“973”计划) ()
国家自然科学基金 ()
高等学校博士学科点专项科研基金 ()
全国优秀博士学位论文作者专项基金 ()
“111”计划 ()
教育部新世纪优秀人才支持计划(批准号:NCET-07-0597)资助的课题 ()