THz waves generated from the optical beats between longitudinal mode of a multimode cw laser daide. Efficiency of optical beats in a chaotically oscillating la-ser is confirmed comparing that of free running CW laser using a highly efficient plasmonic photomixer. The great potential of chaotically oscillating lasers is verified for THz systems.
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 (Antenna). Numerical calculations were also performed for the multimode semiconductor laser with optical delayed feedback system. As a result, fundamental results on modes simultaneity in laser chaos is obtained.
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 (Anttena). The high stability of optical beats in chaotically oscillating lasers is verified. Near to the laser threshold level, this stability of optical beats is maintained.
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 (Anttena). The high stability of optical beats in chaotically oscillating lasers is verified.
Stable THz waves are obtained from the multimode-laser diode excited photoconductive antennas using a laser chaos. Because the many longitudinal modes oscillate simultaneously. This THz wave is suitable for the spectroscopy. Stable THz waves are obtained from the multimode-laser diode excited photoconductive antennas using a laser chaos. Because the many longitudinal modes oscillate simultaneously. This THz wave is suitable for the spectroscopy.
The generation of a wide-range THz wave is investigated from a photoconductive antenna excited using a chaotic oscillation multimode semiconductor laser with optical delayed feedback by an external mirror. The stable THz wave is obtained from the multimode-laser diode excited photoconductive antenna by using a laser chaos. For a high sensitive detection, a metal V-grooved waveguide (MVG) is also used. About 10 times high amplitude signal is obtained using laser chaos. The signal is also increased about 1.6 time using MVG compared to Si lens. As the MVG gap is narrower from 200 to 20[μm], the detected signal is increased about twice.
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