Generation of a stable and wide range THz wave using an optical fiber and laser chaos

Kuwashima, Fumiyoshi; Shirao, Takuya; Tani, Masahiko; Kurihara, Kazuyoshi; Yamamoto, Kohji; Hangyo, Masanori; Nagashima, Takeshi; Iwasawa, Hiroshi

doi:10.15248/proc.1.660

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2019

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“…Some groups have reported that photomixing systems using LDs with several oscillating modes cause terahertz radiation with discrete spectra. [18][19][20] Although their systems can be used to measure rough shapes of the spectra of transmittance and phase shifts, those systems do not have sufficient resolution for the spectroscopy of solids. Ref.…”

Section: Introductionmentioning

confidence: 99%

Extension of spectral region of sub-terahertz spectroscopic system with multimode laser diodes by simple configuration for photomixing technique

Morikawa¹

2019

Jpn. J. Appl. Phys.

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The photomixing technique is applied to a sub-terahertz spectroscopic system with continuous-wave multimode laser diodes (CW-MLDs) to extend the spectral range. I employ two CW-MLDs which have equal spectral widths and slightly different central wavelengths, where sophisticated techniques such as external cavities are not required. I observe that photomixing causes generation of new spectral components of the signal in the frequency region of about 0.5–0.65 THz, while spectral components are limited below about 0.5 THz before the photomixing technique is applied. The generation of spectral components implies that the spectral range covered by the spectroscopic system is extended to higher-frequency regions.

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Section: Introductionmentioning

confidence: 99%

Extension of spectral region of sub-terahertz spectroscopic system with multimode laser diodes by simple configuration for photomixing technique

Morikawa¹

2019

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

show abstract

Generation of a stable and wide range THz wave using an optical fiber and laser chaos

Cited by 1 publication

References 4 publications

Extension of spectral region of sub-terahertz spectroscopic system with multimode laser diodes by simple configuration for photomixing technique

Extension of spectral region of sub-terahertz spectroscopic system with multimode laser diodes by simple configuration for photomixing technique

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