Amplification of Picosecond Pulses with a Photonic-Band-Gap Gyro-TWT

被引：0
|
作者：
Nanni, Emilio A. [1 ,2 ]
Jawla, Sudheer [1 ]
Lewis, Samantha M. [1 ]
Shapiro, Michael [1 ]
Temkin, Richard J. [1 ]
机构：
[1] MIT, 77 Mass Ave, Cambridge, MA 02139 USA
[2] Stanford Univ, SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
来源：
2016 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) | 2016年
关键词：
gyrotron; gyro-TWT; gyrotron amplifier; THz; photonic band gap; DNP NMR;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We report the amplification of 250 GHz pulses as short as 150 ps without observation of pulse broadening using a photonic-band-gap (PBG) gyrotron traveling-wave-amplifier. The gyrotron amplifier operates with 38 dB of device gain and 8 GHz of instantaneous bandwidth. The operational bandwidth of the amplifier can be tuned over 16 GHz by adjusting the operating voltage of the electron beam and the magnetic field. The amplifier uses a 30 cm PBG interaction circuit to confine the desired TE03 operating mode while suppressing lower order modes which can result in undesired oscillations. The circuit gain is >55 dB for a beam voltage of 23 kV and a current of 700 mA. These results demonstrate the wide bandwidths and high gain achievable with gyrotron amplifiers.
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页数：2
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