Towards a THz Backward Wave Amplifier in European FP7 OPTHER Project

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Towards a THz Backward Wave Amplifier in European FP7 OPTHER Project

Authors
Keywords
  • Terahertz
  • Slow Wave
  • Travelling Wave Tube
  • Backward Wave Amplifier
  • Cold Cathode

Abstract

Within the EC funded international project OPTHER (OPtically Driven TeraHertz AmplifiERs) a considerable technological effort is being undertaken, in terms of technological development, THz device design and integration. The ultimate goal is to develop a miniaturised THz amplifier based on vacuum-tube principles The main target specifications of the OPTHER amplifier are the following: - Operating frequency: in the band 0.3 to 2 THz - Output power: > 10 mW ( 10 dBm ) - Gain: 10 to 20 dB. The project is in the middle of its duration. Design and simulations have shown that these targets can be met with a proper device configuration and careful optimization of the different parts of the amplifier. Two parallel schemes will be employed for amplifier realisation: THz Drive Signal Amplifier and Optically Modulated Beam THz Amplifier.

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