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Broadband electric-field-induced LP01 and LP02 second harmonic generation in Xe-filled hollow-core PCF

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Menard,  Jean-Michel
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Köttig,  Felix
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell,  Philip St. J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Menard, J.-M., Köttig, F., & Russell, P. S. J. (2016). Broadband electric-field-induced LP01 and LP02 second harmonic generation in Xe-filled hollow-core PCF. Optics Letters, 41(16), 3795-3798. doi:10.1364/OL.41.003795.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6295-7
Abstract
Second harmonic (SH) generation with 300 fs pump pulses is reported in a xenon-filled hollow-core photonic crystal fiber (PCF) across which an external bias voltage is applied. Phase-matched intermodal conversion from a pump light in the LP01 mode to SH light in the LP02 mode is achieved at a particular gas pressure. Using periodic electrodes, quasi-phase-matched SH generation into the low-loss LP01 mode is achieved at a different pressure. The low linear dispersion of the gas enables phase-matching over a broad spectral window, resulting in a measured bandwidth of similar to 10 nm at high pump energies. A conversion efficiency of similar to 18%/ mJ is obtained. Gas-filled anti-resonant-reflecting hollow-core PCF uniquely offers pressure-tunable phase-matching, ultra-broadband guidance, and a very high optical damage threshold, which hold great promise for efficient three-wave mixing, especially in difficult-to-access regions of the electromagnetic spectrum. (C) 2016 Optical Society of America