Arbitrary Waveform Generator Based on GaAs FET and Tapered Micro-Strip Line

Abstract:

In order to improve the output power of laser pulse in the inertia confinement fusion experiment, an arbitrary waveform generator is fabricated to shape the laser pulse. The arbitrary waveform generator is based on the impedance tapered micro-strip line technology and GaAs Field Effect Transistor set which has a good ability of generating voltage-controlled current. With the impedance tapered micro-strip line technology, the arbitrary waveform generator generates shaping electrical pulse with duration less than 10 ns, 330 ps time-domain adjustment. We use the shaping electrical pulse to modulate semiconductor laser which has the characteristic of direct modulate, the experiment results show the shaped laser pulse is obtained based on the shaping electrical pulse.

• Periodical: Advanced Materials Research (Volumes 655-657)
• Pages: 1581-1586
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.655-657.1581
• Online since: January 2013
• Authors: Ping Lin, Bai Yu Liu, Yong Sheng Gou, Yong Lin Bai, Bo Wang, Xue Qing Zhao
• Keywords: Gaas FET, Impedance Tapered Micro-Strip, Laser Pulse Shaping, On-Off Characteristic

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