Abstract

All-optical dynamic photonic bandgap (PBG) control by an optical Kerr effect (OKE) is investigated in an all-solid double-clad tellurite photonic bandgap fiber (PBGF) which is fabricated based on ${\mathrm{TeO}}_2-{\mathrm{Li}}_2\mathrm{O}-{\mathrm{WO}}_3-{\mathrm{MoO}}_3-{\mathrm{Nb}}_2{\mathrm{O}}_5$ (TLWMN, high-index rod) glass, ${\mathrm{TeO}}_2-\mathrm{ZnO}-{\mathrm{Na}}_2\mathrm{O}-{\mathrm{La}}_2{\mathrm{O}}_3$ (TZNL, inner cladding) glass, and ${\mathrm{TeO}}_2-\mathrm{ZnO}-{\mathrm{Li}}_2\mathrm{O}-{\mathrm{K}}_2\mathrm{O}-{\mathrm{Al}}_2{\mathrm{O}}_3-{\mathrm{P}}_2{\mathrm{O}}_5$ (TZLKAP, outer cladding) glass. To the best of our knowledge, this is the first demonstration of all-optical dynamic PBG control in optical fibers. This PBGF has a high nonlinear refractive index which can lead to a significant OKE and induce the generation of all-optical dynamic PBG control. The transmission spectrum is simulated with the pump peak power increasing from 0 to 300 kW, which shows an obvious PBG shift. Dynamic PBG control is demonstrated both numerically and experimentally at the pump peak power of 200 kW (ON or OFF) at the signal of 1570 nm.

© 2017 Optical Society of America

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