Design of a Passively Mode-locked Microlaser with an Er-doped Microcavity and Carbon Nanotubes

Ultrahigh repetition rate lasers will become vital light sources for many technologies; however, they are difficult to realize because the cavity must be miniaturized. A mode-locked laser with whispering-gallery-mode (WGM) microresonators would provide a cost-effective on-chip solution that would al...

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Bibliographic Details
Published in2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) p. 1
Main Authors Imamura, Riku, Nakashima, Ayata, Nagashima, Keigo, Prugger Suzuki, Tomoki S. L., Ishida, Rammaru, Fujii, Shun, Tanabe, Takasumi
Format Conference Proceeding
LanguageEnglish
Published IEEE 21.06.2021
Subjects
Absorption
Carbon nanotubes
Dispersion
Europe
Laser mode locking
Microcavities
System-on-chip
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Summary:Ultrahigh repetition rate lasers will become vital light sources for many technologies; however, they are difficult to realize because the cavity must be miniaturized. A mode-locked laser with whispering-gallery-mode (WGM) microresonators would provide a cost-effective on-chip solution that would allow us to demonstrate ultra-high repetition rate lasers. However, the required parameters, such as the cavity size, dispersion, minimum gain, and amount of saturable absorption (SA) loss, are unknown; we need to establish a clear guideline if we wish to discuss experimental feasibility and achieve mode locking (ML). Here, we report on a numerical investigation that clarified the optimum design parameters to achieve passive ML with a toroidal WGM microlaser.
DOI:10.1109/CLEO/Europe-EQEC52157.2021.9542565