Widely tunable optical parametric generation in a photonic crystal fiber

Abstract

We report on the observation of widely tunable optical parametric generation in a photonic crystal fiber. The frequency shift of the generated sidebands that arise from modulational instability is strongly dependent on the detuning of the pump from the fiber's zero-dispersion wavelength. We are able to demonstrate experimentally more than 450 nm of sideband tunability as we tune the pump wavelength over 10 nm. Excellent agreement has been found between the experimentally measured and theoretically predicted shifts.

A proposal for highly tunable optical parametric oscillation in silicon micro-resonators

“…In this regime, increasing the pump wavelength does not affect much the spectral location of phase-matched signal/idler, except with a decreased bandwidth because of an increased GVD magnitude [9]. In contrast, when the pump wavelength is tuned to the normal-dispersion regime, high order dispersions play a significant role in the phase matching condition [19], which enables phase matching at wavelengths far away from the pump. Such high-order-dispersion assisted phase matching is sensitive to the pump wavelength and [19].…”

“…In contrast, when the pump wavelength is tuned to the normal-dispersion regime, high order dispersions play a significant role in the phase matching condition [19], which enables phase matching at wavelengths far away from the pump. Such high-order-dispersion assisted phase matching is sensitive to the pump wavelength and [19]. The black dashed line shows the location of the ZDWL.…”

Parametric Wavelength Conversion From Conventional Near-Infrared to Visible Band

“…In contrast, silica photonic crystal fiber (PCF) can, in principle, simultaneously guide spectrally distant signal, pump, and idler bands from 400 to 2500 nm. The PCF transverse structure facilitates the nearly arbitrary dispersion profile synthesis required for phase matching between distant signal and pump waves [3], [4]. More importantly, rigorous dispersion control can be combined with high-confinement, providing an elevated effective nonlinear response .…”

Continuous-Wave Band Translation Between the Near-Infrared and Visible Spectral Ranges

“…The performance of the translator is defined in a significant way by the effective bandwidth [10], [11]. While the translation of low-rate single-channel communication can, in principle, be accomplished by cavity-aided crystalline devices [16], [17], a general UBT should be capable of mapping the entire WDM band.…”

“…This deficiency can, in principle, be corrected by silica photonic-crystal-fiber (PCF) structures, which simultaneously guide spectrally distant signal, pump, and idler bands from 400 to 2000 nm. Phase-matched photon exchange in the PCF offers high power efficiency and strict phase fidelity over a wide spectral range [9], [10]. The wavelength-conversion (WC) efficiency generally depends on peak pump power, pumpsignal interaction length, and optical nonlinearity [6], [8].…”