The 4th IEEE International Conference on Telecommunications and Photonics (ICTP) 2021

December 22-24, 2021, Dhaka, Bangladesh

Keynote Speech  

Optomechanical Phenomena in Photonic Crystal Fibres



Philip Russell

Max Planck Institute for the Science of Light

Staudtstraße 2, 91341 Erlangen, Germany



Photonic crystal fibre (PCF) technology makes it possible to produce long lengths of very small (scale of 1 µm) glass cores surrounded by hollow channels. Such cores support tightly confined few-GHz acoustic resonances and offer close-to-100% optoacoustic overlap, providing a unique system for achieving stable passive high harmonic mode-locking of fibre lasers [1]. Light can be guided in hollow core PCF over long distances in a well-controlled single mode, allowing the trapping and laser propulsion of small particles to be studied. Among recent experiments in my group include optical binding of particles at cm-scale distances [2], continuous monitoring of PM2.5 particles in the atmosphere [3], precession and nutation of birefringent particles driven by circularly polarized light in chiral PCF [4], ablation-driven rocket-like propulsion of particles by single fs pulses [5] and optomechanically stabilized launching of light into hollow core PCF using a mechanically compliant glass nanospike [6][7].

1. He W, Pang M, Yeh D-H, Huang J, Menyuk CR, Russell PStJ. 2019 Supramolecular transmission of soliton-encoded bit streams over astronomical distances. Nat. Comm. 10, 5756. (doi:10.1038/s41467-019-13746-6) 2. Sharma A, Xie S, Russell PStJ. 2021 Reconfigurable millimeter-range optical binding of dielectric microparticles in hollow-core photonic crystal fiber. Opt. Lett. (doi:10.1364/OL.421885) 3. Sharma A, Xie S, Zeltner R, Russell PStJ. 2019 On-the-fly particle metrology in hollow-core photonic crystal fibre. Opt. Exp. 27, 34496–34504. (doi:10.1364/OE.27.034496) 4. Xie S, Sharma A, Romodina M, Joly NY, Russell PStJ. 2021 Tumbling and anomalous alignment of optically levitated anisotropic microparticles in chiral hollow-core photonic crystal fiber. Sci. Adv. 7, eabf6053. (doi:10.1126/sciadv.abf6053) 5. Romodina MN, Xie S, Sharma A, Tani F, Russell PStJ. 2020 Femtosecond laser micromachining and rocket propulsion of micro-particles optically trapped in hollow-core photonic crystal fibre. CLEO/Europe, paper CM-5.1 THU. Munich, GERMANY. 6. Xie S, Pennetta R, Russell PStJ. 2016 Self-alignment of glass fiber nanospike by optomechanical back-action in hollow-core photonic crystal fiber. Optica 3, 277–282. (doi:10.1364/OPTICA.3.000277) 7. Xie S, Pennetta R, Wang Z, Russell PStJ. 2019 Sustained self-starting orbital motion of a glass-fiber “nanoengine” driven by photophoretic forces. ACS Photonics 12, 3315–3320. (doi:

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Philip Russell is Emeritus Founding Director at the Max Planck Institute for the Science of Light in Erlangen, Germany. Since his PhD at the University of Oxford, he has been fascinated by the behaviour of light in periodic structures. He has worked on photonic crystal fibre (PCF) since inventing it in the early 1990s and has won a number of awards, including The Optical Society’s (OSA) Fraunhofer Award and Burley Prize (2003), IoP's Thomas Young Medal and Prize (2004), the 2005 Körber Prize for European Science, the 2013 EPS Prize for Research into the Science of Light, the 2014 Berthold Leibinger Zukunftspreis, the 2015 IEEE Photonics Award and the 2018 Rank Prize for Optoelectronics. He is Fellow of the Royal Society and OSA and was OSA's President in 2015, the International Year of Light. He is the founder of two start-up companies: BlazePhotonics Ltd (low-loss hollow core PCF for telecomms) and Ultralumina GmbH (pulse compression in gas-filled in hollow-core PCF).