Efficient four-wave mixing in an ultra-highly nonlinear suspended-core chalcogenide As_38Se_62 fiber

Abstract

We report a chalcogenide suspended-core fiber with ultra-high nonlinearity and low attenuation loss. The glass composition is As(38)Se(62).With a core diameter as small as 1.13 µm, a record Kerr nonlinearity of 46,000 W(-1) km(-1) is demonstrated with attenuation loss of 0.9 dB/m. Four-wave mixing is experimented by using a 1m-long chalcogenide fiber for 10 GHz and 42.7 GHz signals. Four-wave mixing efficiencies of -5.6 dB at 10 GHz and -17.5 dB at 42.7 GHz are obtained. We also observed higher orders of four-wave mixing for both repetition rates.

Relative intensity noise and frequency noise of a compact Brillouin laser made of As_38Se_62 suspended-core chalcogenide fiber

“…The suspended-core AsSe chalcogenide fiber is a promising Brillouin gain medium since BFLs made of these fibers and operating at a single frequency are compact, exhibit a low threshold, and have very good noise characteristics. BFLs with a threshold power of the order of the milliwatt can be for single-pass pumping, and even at submilliwatt threshold power for resonant pumping, provided a Pound-Drever-Hall frequency-locking technique is used [17], can be achieved by the use of reported AsSe MOFs with smaller effective area and equivalent linear losses (1.15 μm 2 and 0.9 dB∕m) [18].…”

Effects of pressurization and surface tension on drawing Ge-Sb-Se chalcogenide glass suspended-core fiber

“…The small central core structure provides tight confinement of light, and high nonlinearity [1]. Combined with chalcogenide glasses, which have high transmission in the infrared region (up to 20 µm), and large nonlinearity (1000 times that of silica) [2], suspended-core fibers have been used to realize cascaded Raman shifts [3], highly efficient four-wave mixing [4] and especially to generate supercontinuum in the mid-infrared region [5,6]. One of the most important advantages of suspended-core fiber to be used for generating supercontinuum is that it can shift the zero-dispersion wavelength to shorter values, permitting pumping by a commercially available laser source [7,8].…”

All‐optical time‐domain demultiplexing of 170.8 Gbit/s signal in chalcogenide GeAsSe microstructured fibre

“…These parameters must match the specifications of demultiplexers which in general have low power consumption, high bandwidth and compactness. Due to their recent growth, chalcogenide microstructured fibres [5] now offer great potential for implementing all‐optical signal demultiplexing at high bit rate.…”