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Proceedings Paper

Passive and active whispering gallery mode microresonators in optical engineering
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Paper Abstract

The paper illustrates both review and original simulation results obtained via the modelling of different set-ups based on optical microresonators for applications in optical sensing, lasing and spectroscopy. Passive microbubbles and microspheres coupled via long period fiber gratings (LPGs) and tapered fibers are designed and/or constructed for sensing of biological fluids in the near infrared (NIR) wavelength range. Rare earth doped chalcogenide glass integrated microdisks are designed for active sensing in the medium infrared (MIR) wavelength range. A home-made numerical code modelling the optical coupling and the active behavior via rate equations of ion population is employed for a realistic design, by taking into account the most important active phenomena in rare earths, such as the absorption rates, the stimulated emission rates, the amplified spontaneous emission, the lifetime and branching ratios, the ion-ion energy transfers and the excited state absorption. Optical coupling is obtained by employing ridge waveguides, for micro-disks, and tapered fibers, for microspheres and microbubbles. Different dopant rare earths as Erbium (Er3+) and Praseodymium (Pr3+) are considered.

Paper Details

Date Published: 4 March 2019
PDF: 8 pages
Proc. SPIE 10904, Laser Resonators, Microresonators, and Beam Control XXI, 1090417 (4 March 2019); doi: 10.1117/12.2512038
Show Author Affiliations
Dario Laneve, Politecnico di Bari (Italy)
Mario C. Falconi, Politecnico di Bari (Italy)
Giuseppe Palma, Politecnico di Bari (Italy)
Cosimo Scarnera, Politecnico di Bari (Italy)
Francesco Chiavaioli, Istituto di Fisica Applicata "Nello Carrara" (Italy)
Daniele Farnesi , Istituto di Fisica Applicata "Nello Carrara" (Italy)
Tetsuo Kishi, Tokyo Institute of Technology (Japan)
Andrea Chiappini, CNR-Istituto di Fotonica e Nanotecnologie (Italy)
Gualtiero Nunzi Conti, Istituto di Fisica Applicata "Nello Carrara" (Italy)
Museo Storico della Fisica e Ctr. Studi e Ricerche "Enrico Fermi" (Italy)
Silvia Soria, Istituto di Fisica Applicata "Nello Carrara" (Italy)
Virginie Nazabal, Univ. de Rennes 1 (France)
Francesco Baldini, Istituto di Fisica Applicata "Nello Carrara" (Italy)
Maurizio Ferrari, CNR-Istituto di Fotonica e Nanotecnologie (Italy)
Museo Storico della Fisica e Ctr. Studi e Ricerche "Enrico Fermi" (Italy)
Francesco Prudenzano, Politecnico di Bari (Italy)


Published in SPIE Proceedings Vol. 10904:
Laser Resonators, Microresonators, and Beam Control XXI
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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