Terahertz quantum cascade laser bandwidth prediction
- Agnew, Gary
- Grier, Andrew
- Taimre, Thomas
- Lim, Yah Leng
- Ikonić, Zoran
- Dean, Paul
- Khanna, Suraj P.
- Lachab, Mohammad
- Valavanis, Alexander
- Cooper, Jonathan
- Harrison, Paul
- Linfield, Edmund H.
- Davies, A. Giles
- Indjin, Dragan
- Rakić, Aleksandar D.
Publication date
January 2015
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
Recent research shows that terahertz quantum cascade lasers are well-suited to high speed free space communication. The results of both theoretical and laboratory work indicate the devices are able to deliver bandwidths in the gigahertz to tens of gigahertz range without the burden of relaxation oscillations found in diode lasers. Using a novel rate equation model we explore the frequency response characteristics of a real device and report on the finding of a strongly peaked bias current-dependent response
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