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First Demonstration of a Broadband 37-cell Hollow Core Photonic Bandgap Fiber and Its Application to High Capacity Mode Division Multiplexing
a Broadband 37-cell Hollow Core Photonic Bandgap Fiber Application to High Capacity Mode Division Multiplexing
2014/11/6
We report fabrication of the first low-loss, broadband 37-cell photonic bandgap fiber.Exploiting absence of surface modes and low cross-talk in the fiber we demonstrate mode division multiplexing over...
Broadband light management using low-Q whispering gallery modes in spherical nanoshells
Broadband light management whispering gallery modes spherical nanoshells
2013/8/7
Light trapping across a wide band of frequencies is important for applications such as solar cells and photodetectors. Here, we demonstrate a new approach to light management by forming whispering-gal...
Broadband Sharp 90-degree Bends and T‑Splitters in Plasmonic Coaxial Waveguides
plasmonics coaxial waveguide transmission line bend splitter integrated optical circuit
2013/8/7
We demonstrate numerically that sharp 90°bends and T-splitters can be designed in plasmonic coaxial waveguides at deep-subwavelength scale to operate without reflection and radiation over a broa...
Design for broadband on-chip isolator using stimulated Brillouin scattering in dispersion-engineered chalcogenide waveguides
Nonlinear optics Stimulated scattering modulation Nonlinear optics devices
2012/8/7
We propose a scheme for on-chip isolation in chalcogenide(As2S3) rib waveguides, in which Stimulated Brillouin Scattering is used to induce non-reciprocal mode conversion within a multi-moded waveguid...
Thermodynamic Upper Bound on Broadband Light Coupling with Photonic Structures
Thermodynamic Broadband Light Coupling Photonic Structures
2012/8/7
The coupling between free space radiation and optical media critically influences the performance of optical devices. We show that, for any given photonic structure, the sum of the external coup...
Dielectric nanostructures for broadband light trapping in organic solar cells
Solar energy Nanophotonics photonic crystals Diffraction gratings
2011/8/10
Organic bulk heterojunction solar cells are a promising candidate for low-cost next-generation photovoltaic systems. However,carrier extraction limitations necessitate thin active layers that sacri...
High-speed and broadband electro-optic silicon switch with submilliwatt switching power
High-speed broadband electro-optic silicon switch submilliwatt switching power
2011/5/26
We present a 2x2 silicon electro-optic switch with a submilliwatt switching power (0.6 mW), a broad bandwidth (60 nm), and ultrafast speed (6 ns). Free-carrier injection Mach-Zehnder interferometers a...
A Novel Wireless over Fiber Access Architecture Employing Moving Chain Cells and RoF Technique for Broadband Wireless Applications on the Train Environment
Networks ptical communications
2011/5/26
We have demonstrated a hybrid optical/wireless system based on moving chain cells and radio-over-fiber techniques. This scheme can improve power efficiency, cell-edge coverage,system throughput and fl...
Broadband Ubiquitous Network Based on RoF-DAS over WDM-PON
Fiber optics communications Networks combinatorial network design
2011/5/26
This report is the first demonstration of RoF-DAS over WDM-PON with TDM techniques to realize a broadband ubiquitous wireless access with a gigabit-class throughput. The optical transmission performan...
Real-Time Ultra-broadband Group Delay Monitoring through Quasi-Incoherent Processing
Fiber Bragg gratings Fiber optics communications Fiber optics components Bragg reflectors Dispersion compensation devices
2011/5/25
Simple method for real-time ultra-broadband group delay measurement of photonic devices is reported, demonstrating accurate group delay ripple monitoring of a 10m-long chirped fiber grating over the f...
Broadband Wavelength Conversion with S/C/L-band Flexible Operation Using Cross-Gain-Modulation in a Single Quantum Dot SOA
All-optical devices Quantum-well dot devices
2011/5/22
We experimentally demonstrated operating original and converted wavelengths flexible wavelength conversion using cross-gain-modulation in a single quantum dot semiconductor optical amplifier with cove...
Time-Stretch Analog-to-Digital Conversion Using Phase Modulation and Broadband Balanced Coherent Detection for Improving Resolution
Fiber optics links subsystems Radio frequency photonics
2011/5/22
We introduce a novel implementation of time-stretch analog-to-digital conversion which uses phase modulation and balanced coherent detection for improving resolution. Proof of concept experiment demon...
Compact broadband polarizer based on shallowly-etched silicon-on-insulator ridge optical waveguides
Compact broadband polarizer based shallowly-etched silicon-on-insulator ridge optical waveguides
2011/5/21
A novel type of optical polarizer based on silicon-on-insulator shallowly-etched ridge waveguide is designed,fabricated and characterized. The present polarizer is compact, broad-band, and easy-fabric...
Low Power and Broadband 2 X 2 Silicon Thermo-Optic Switch
Low Power Broadband Thermo-Optic Switch
2011/5/21
We present a 2X2 silicon thermo-optic switch which requires a switching power of only ～12.5 mW and has a response time of 5.4 μs. The measured extinction ratio of the switch is >～20 dB across the C an...
A Broadband, Spectrally Flat, High Rep-rate Frequency Comb: Bandwidth Scaling and Flatness Enhancement of Phase Modulated CW through Cascaded Four-Wave Mixing
Broadband Spectrally Flat High Rep-rate Frequency Comb Bandwidth Scaling Flatness Enhancement Phase Modulated CW Cascaded Four-Wave Mixing
2011/5/20
We demonstrate a scheme to scale the bandwidth by several times while enhancing spectral flatness of frequency combs generated by intensity and phase modulation of CW lasers using cascaded four-wave m...