Temporal nonlinear beam dynamics in infiltrated photonic crystal fibers

Francis Bennet, Christian Romer Rosberg, Dragomir N. Neshev, Per Dalgaard Rasmussen, Ole Bang, Wieslaw Krolikowski, Anders Overgaard Bjarklev, Yuri S. Kivshar

Research output: Contribution to conferencePosterResearchpeer-review

Abstract

Liquid-infiltrated photonic crystal fibers (PCFs) offer a new way of studying light propagation in periodic and discrete systems. A wide range of available fiber structures combined with the ease of infiltration opens up a range of novel experimental opportunities for optical detection and bio-sensing as well as active devices for all-optical switching at low (mW) laser powers. Commercially available PCFs infiltrated with liquids also provide a versatile and compact tool for exploration of the fundamentals of nonlinear beam propagation in periodic photonic structures. To explore the full scientific and technological potential of liquid-infiltrated PCFs it is important to understand the temporal dynamics of nonlinear beam propagation in such structures. In this work we consider thermally induced spatial nonlinear effects in infiltrated photonic crystal fibers. We experimentally study the temporal dynamics of nonlinear beam reshaping occurring on a short time scale before the establishment of a steady state regime. In experiment, a 532nm laser beam can be injected into a single hole of an infiltrated PCF cladding structure, and the temporal dynamics of the nonlinear response is measured by monitoring the evolution of the fiber output beam in the few micro or milliseconds after the beam is turned on. The characterization of the temporal behavior of the thermal nonlinear response provides important information about the nonlocality associated with heat diffusion inside the fiber, thus enabling studies of long-range interactions in nonlinear discrete media.
Original languageEnglish
Publication date2007
Publication statusPublished - 2007
EventSPIE: Microelectronics, MEMS and Nanotechnology 2007 - Canberra, Australia
Duration: 4 Dec 20077 Dec 2007

Conference

ConferenceSPIE: Microelectronics, MEMS and Nanotechnology 2007
CountryAustralia
CityCanberra
Period04/12/200707/12/2007

Cite this

Bennet, F., Rosberg, C. R., Neshev, D. N., Rasmussen, P. D., Bang, O., Krolikowski, W., Bjarklev, A. O., & Kivshar, Y. S. (2007). Temporal nonlinear beam dynamics in infiltrated photonic crystal fibers. Poster session presented at SPIE: Microelectronics, MEMS and Nanotechnology 2007, Canberra, Australia.