Raman lasing in a hollow, bottle-like microresonator
2015; Institute of Physics; Volume: 8; Issue: 9 Linguagem: Inglês
10.7567/apex.8.092001
ISSN1882-0786
AutoresYuta Ooka, Yong Yang, Jonathan M. Ward, Síle Nic Chormaic,
Tópico(s)Mechanical and Optical Resonators
ResumoWe report on the fabrication of an ultrahigh quality factor, bottle-like microresonator from a microcapillary, and the realization of Raman lasing therein at pump wavelengths of $1.55~\mathrm{\mu m}$ and $780~\mathrm{nm}$. The dependence of the Raman laser threshold on mode volume is investigated. The mode volume of the fundamental bottle mode is calculated and compared with that of a microsphere. Third-order cascaded Raman lasing was observed when pumped at $780~\mathrm{nm}$. In principle, Raman lasing in a hollow bottle-like microresonator can be used in sensing applications. As an example, we briefly discuss the possibility of a high dynamic range, high resolution aerostatic pressure sensor.
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