Tunable frequency-up/down conversion in gas-filled hollow-core photonic crystal fibers.

Based on the interplay between photoionization and Raman effects in gas-filled photonic crystal fibers, we propose a new optical device to control frequency conversion of ultrashort pulses. By tuning the input-pulse energy, the output spectrum can be either down-converted, up-converted, or even frequency-shift compensated. For low input energies, the Raman effect is dominant and leads to a redshift that increases linearly during propagation. For larger pulse energies, photoionization starts to take over the frequency-conversion process and induces a strong blueshift. The fiber-output pressure can be used as an additional degree of freedom to control the spectrum shift.

[1]  Philipp Hölzer,et al.  Theory of photoionization-induced blueshift of ultrashort solitons in gas-filled hollow-core photonic crystal fibers. , 2011, Physical review letters.

[2]  J. Dudley,et al.  Supercontinuum generation in photonic crystal fiber , 2006 .

[3]  A. Saenz.  Behavior of molecular hydrogen exposed to strong dc, ac, or low-frequency laser fields. II. Comparison of ab initio and Ammosov-Delone-Krainov rates , 2002 .

[4]  W. Chang,et al.  Combined soliton pulse compression and plasma-related frequency upconversion in gas-filled photonic crystal fiber. , 2013, Optics letters.

[5]  F. Bloch.  Über die Quantenmechanik der Elektronen in Kristallgittern , 1929 .

[6]  P. Russell,et al.  Ultrafast nonlinear optics in gas-filled hollow-core photonic crystal fibers [Invited] , 2011 .

[7]  Amir Abdolvand,et al.  Hollow-core photonic crystal fibres for gas-based nonlinear optics , 2014, Nature Photonics.

[8]  Ferenc Krausz,et al.  Light Propagation in Field-Ionizing Media: Extreme Nonlinear Optics , 1999 .

[9]  Herrmann,et al.  Phase relations, quasicontinuous spectra and subfemtosecond pulses in high-order stimulated raman scattering with short-pulse excitation , 2000, Physical review letters.

[10]  Fabio Biancalana,et al.  Plasma-induced asymmetric self-phase modulation and modulational instability in gas-filled hollow-core photonic crystal fibers. , 2012, Physical review letters.

[11]  F. Benabid,et al.  High harmonic generation in a gas-filled hollow-core photonic crystal fiber , 2009 .

[12]  L. Mollenauer,et al.  Discovery of the soliton self-frequency shift. , 1986, Optics letters.

[13]  G. Korn,et al.  Observation of Raman Self-Conversion of fs-Pulse Frequency due to Impulsive Excitation of Molecular Vibrations , 1998 .

[14]  P St J Russell,et al.  Bright spatially coherent wavelength-tunable deep-UV laser source using an Ar-filled photonic crystal fiber. , 2011, Physical review letters.

[15]  Truong X. Tran,et al.  Interaction between optical fields and their conjugates in nonlinear media. , 2013, Optics express.

[16]  R. Buczyński.  Photonic Crystal Fibers , 2004 .

[17]  J V Moloney,et al.  Nonlinear optical pulse propagation simulation: from Maxwell's to unidirectional equations. , 2004, Physical review. E, Statistical, nonlinear, and soft matter physics.

[18]  P St J Russell,et al.  Photoionization-Induced Emission of Tunable Few-Cycle Midinfrared Dispersive Waves in Gas-Filled Hollow-Core Photonic Crystal Fibers. , 2015, Physical review letters.

[19]  Katsumi Midorikawa,et al.  Generation of sub-10-fs, 5-mJ-optical pulses using a hollow fiber with a pressure gradient , 2005 .

[20]  M F Saleh,et al.  Femtosecond nonlinear fiber optics in the ionization regime. , 2011, Physical review letters.

[21]  Dyer,et al.  Temperature dependence of the Raman linewidth and line shift for the Q(1) and Q(0) transitions in normal and para-H2. , 1986, Physical review. A, General physics.

[22]  Federico Belli,et al.  Vacuum-ultraviolet to infrared supercontinuum in hydrogen-filled photonic crystal fiber , 2015 .

[23]  Paul Kinsler.  Optical pulse propagation with minimal approximations , 2010 .

[24]  C. Zener.  A theory of the electrical breakdown of solid dielectrics , 1934 .

[25]  E. Dianov,et al.  Stimulated-Raman conversion of multisoliton pulses in quartz optical fibers , 1985 .

[26]  Truong X. Tran,et al.  Raman-induced temporal condensed matter physics in gas-filled photonic crystal fibers. , 2014, Optics express.

[27]  F. Benabid,et al.  Stimulated Raman Scattering in Hydrogen-Filled Hollow-Core Photonic Crystal Fiber , 2002, Science.