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Thulium-doped fiber amplifier for optical communications at 2µm
We report the realization of a thulium doped fiber amplifier designed for optical communications providing high gain (>35dB) and low noise figure (<;6dB) over 1910nm-2020nm with a maximum saturatedExpand
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Ultracompact in-line broadband Mach-Zehnder interferometer using a composite leaky hollow-optical-fiber waveguide.
We report on an ultracompact fiber optic Mach-Zehnder interferometer (MZI) using a novel concatenated structure, single-mode-fiber (SMF)-hollow optical fiber (HOF)-SMF. An optimized air-hole size inExpand
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All-optical mode and wavelength converter based on parametric processes in a three-mode fiber
We demonstrate, both experimentally and numerically, all-optical mode and wavelength conversion both within the C-band and between the C- and L-bands. This is achieved by exploiting phase-matchedExpand
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32-core Dense SDM unidirectional transmission of PDM-16QAM signals over 1600 km using crosstalk-managed single-mode heterogeneous multicore transmission line
TLDR
We demonstrate 32-core dense space-division multiplexed (DSDM) unidirectional transmission of PDM-16QAM 20-WDM signals over 1644.8 km, which is more than three times longer than our previous DSDM transmission [9] with over 30 spatial multiplicity. Expand
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Heterogeneous space-division multiplexing and joint wavelength switching demonstration
TLDR
We demonstrate a six spatial-mode wavelength-routing network interoperable with few-mode, coupled-multi-core, and single-mode fiber spans using a custom 57-port wavelength-selective switch configured for joint-switching of spatial channels. Expand
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High Capacity Mode-Division Multiplexed Optical Transmission in a Novel 37-cell Hollow-Core Photonic Bandgap Fiber
We present the first demonstration of combined wavelength-division multiplexed (WDM) and mode-division multiplexed (MDM) optical transmission in a hollow-core photonic bandgap fiber (HC-PBGF). ForExpand
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Demonstration of ultra-low NA rare-earth doped step index fiber for applications in high power fiber lasers.
In this paper, we report the mode area scaling of a rare-earth doped step index fiber by using low numerical aperture. Numerical simulations show the possibility of achieving an effective area ofExpand
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Highly birefringent silica microfiber.
A highly birefringent silica microfiber was successfully developed by adiabatically tapering a low-birefringence flat fiber at a low temperature. Owing to the high fiber cross-sectional ellipticityExpand
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Optical probe based on double-clad optical fiber for fluorescence spectroscopy.
We report an optical probe based on a single double-clad fiber (DCF), which is suitable for fluorescence spectroscopy. The excitation light is delivered through the small diameter core of the DCF andExpand
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