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Chalcogenide glasses are known for their large transparency in the mid infrared and their high refractive index (>2). They present also a high non linear coefficient (n2), 100 to 1000 times larger than for silica, depending on the composition. An original way to obtain single-mode fibers is to design microstructured optical fibers (MOFs). In addition, these fibers present unique optical properties...
Silicon-core optical fibers were fabricated by the “rod-in-tube” method. Optical losses were reduced to the level of 11-12 dB/cm in a wavelength range of 1.5-6.7 μm owing to a post-drawing treatment similar to zone melting.
Ever since slot waveguide was first proposed, its unique photon confinement characteristic has attracted a lot of interest. Its applications in several areas such as silicon light emission device, nonlinear optical device, and optical bio detection have been proposed and experimentally verified. Different merit functions for device design have also been proposed for some specific applications. This...
We demonstrate four-wave mixing in silicon nitride waveguides with -7.1 dB conversion efficiency between the signal and idler. We observe no evidence of nonlinear losses with pump powers as high as 110 W.
In this paper, we investigate the linear and nonlinear properties of GeSbS and AsSe chalcogenide photonic crystal fibers. Through several experimental setups, we have measured the second- and third-order chromatic dispersion, the effective area, losses, birefringence, the nonlinear Kerr coefficient as well as Brillouin and Raman scattering properties.
Silicon nitride /silicon dioxide waveguide using plasma-enhanced chemical vapor deposition is reported, which has the loss of ~4 dB/cm. A ring resonator using the waveguide gives the Q of 12,900 and its nonlinear response is studied.
Add-drop filters based on microring resonators were fabricated in silicon-rich silicon nitride. Third-order microring filters showed an 80 GHz bandwidth, a 4 dB loss from input to drop, and a 24 nm free spectral-range.
Total coupling losses as low as 4.37 dB (fibre to waveguide to semiconductor amplifier and back, excluding amplifier gain) were achieved using entirely passive alignment in a hybrid-integrated optical regenerator. Penalty-free 2R regeneration at 40 Gbit/s was demonstrated
Ultra low nonlinearity pure-silica-core fiber with an effective area of 211 mum2 has been successfully developed. With good microbend resistance, transmission loss as low as 0.159 dB/km has been realized even in the spool condition
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