Evaluation of high-stability optical beats in laser chaos by plasmonic photomixing
| Autor: | Hideaki Kitahara, Kazuyoshi Kurihara, Kazuyuki Iwao, Takashi Furuya, Makoto Nakajima, Masahiko Tani, Fumiyoshi Kuwashima, Semih Cakmakyapan, Osamu Morikawa, Takuya Shirao, Mona Jarrahi, Kenji Wada |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Laser diode business.industry Terahertz radiation Physics::Optics 02 engineering and technology 021001 nanoscience & nanotechnology Laser 7. Clean energy 01 natural sciences Atomic and Molecular Physics and Optics law.invention Terahertz spectroscopy and technology Nonlinear Sciences::Chaotic Dynamics 010309 optics Optical pumping Photomixing Optics law 0103 physical sciences Physics::Atomic Physics 0210 nano-technology business Spectroscopy Plasmon |
| Zdroj: | Optics express. 28(17) |
| ISSN: | 1094-4087 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|