Highly nonlinear and anomalously dispersive lead silicate glass holey fibers

Abstract

Abstract:In this paper we present significant progress on the fabrication of small-core lead-silicate holey fibers. The glass used in this work is SF57, a commercially available, highly nonlinear Schott glass. We report the fabrication of small core SF57 fibers with a loss as low as 2.6 dB/m at 1550 nm, and the fabrication of fibers with a nonlinear coefficient as high as 640 W -1 km -1. We demonstrate the generation of Raman solitons at ~1550 nm in a short length of such a fiber which highlights the fact that the group velocity dispersion can be anomalous at these wavelengths despite the large normal material dispersion of the glass around 1550nm.

Mid-IR Supercontinuum Generation From Nonsilica Microstructured Optical Fibers

“…This technique has now been used to produce a broad range of fiber geometries in a number of compound glass materials including lead silicate [35], bismuth oxide [29], and tellurite [36] glass materials. The geometry that has been used for many of these demonstrations is the so-called "wagon-wheel" (WW) fiber, which is a micrometer-scale solid core suspended by three long fine glass struts that optically isolate the core within a robust solid jacket.…”

Extrusion of complex preforms for microstructured optical fibers

“…A promising alternative technique is billet extrusion, which has been shown to be a versatile, reproducible single-step approach to fabrication of soft glass and polymer preforms with up to 12 holes [5][6][7][8][9]. However, to produce even these relatively simple structures, extrusion dies with relatively complex internal structures were used.…”

Multisoliton Newton's cradles and supersolitons in regular and parity-time-symmetric nonlinear couplers

“…In this case, normalized propagation distance ζ = 500 in the figures corresponds to the fiber length ∼ 5 km, with the coupling coefficient ∼ 0.1 m For the PT -symmetric coupler, the gain and loss coefficients are 0.43 dB/km. The propagation distance can be further reduced by increasing the input power or using highly-nonlinear fibers [70].…”