1. Evaluation of high-stability optical beats in laser chaos by plasmonic photomixing.
- Author
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Kuwashima F, Jarrahi M, Cakmakyapan S, Morikawa O, Shirao T, Iwao K, Kurihara K, Kitahara H, Furuya T, Wada K, Nakajima M, and Tani M
- Abstract
The stability of optical beats in a chaotically oscillating laser is compared to that of a free-running continuous-wave laser using a highly efficient plasmonic photomixer. Using a chaotically oscillating laser diode, stable optical beats are observed over an operation current range of 60-90 mA. The optical spectra are stable even with frequent mode hopping. In contrast, optical beats in a free-running continuous-wave laser are not stable compared to those of a chaotically oscillating laser, because of intermittent hopping of the laser modes. The high stability of chaotically oscillating lasers makes these lasers promising candidates for optical pump sources in terahertz time-domain spectroscopy systems.
- Published
- 2020
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