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Compact bends for multi-mode photonic crystal waveguides with high transmission and suppressed modal crosstalk
Nanophotonics photonic crystals Integrated optics devices Photonic crystal waveguides
2015/8/7
We demonstrate an extremely compact bend for a photonic crystal waveguide supporting three spatial modes. The bend exhibits nearly 100% transmission over a relative bandwidth of 1% with less than 1% c...
Upper Bound on the Modal Material Loss Rate in Plasmonic and Metamaterial Systems
Modal Material Loss Rate Plasmonic Metamaterial Systems
2015/8/7
A better understanding of optical loss in plasmonic and metamaterial systems is of increasing importance for both basic and applied research in a broad range of topics including sensors, antennas,opti...
Real-Time Monitoring of the Modal Content of Monolithic Large-Mode-Area Fiber Lasers
Fiber characterization Lasers fiber Fiber Bragg gratings Fabry-Perot
2015/6/9
A method for the real-time monitoring of the modal content of a monolithic LMA fiber laser is reported for the first time. It allows for the direct observation of the dynamics of transversal mode comp...
10.3-Gb/s Operation over a Wide Temperature Range in 1.3-μm Quantum-dot DFB Lasers with High Modal Gain
Lasers distributed-feedback Quantum dot devices
2015/6/8
Temperature-stable 10.3-Gb/s operation was attained for 1.3-μm quantum-dot DFB lasers with high modal gain. Clearly-opened eye diagrams with the extinction ratio of over 5.2 dB were obtained from -40o...
Reducing Modal Noise in Short-Range Radio over Multimode Fibre Links
Fiber optics links subsystems Radio frequency photonics
2015/6/4
Reducing gain fluctuations in Short Range Radio over Multimode Fiber Links requires Central Launch. Furthermore, the quality of today’s optical connectors gives importance to the combined effect of fi...
Miniature refractometer based on modal interference in a hollow-core photonic crystal fiber with collapsed splicing
photonic crystal fiber modal interference refractometer collapsed splicing
2013/5/27
A miniature modal interferometer based on a hollow-core photonic crystal fiber (HC-PCF) for refractive index measurement is demonstrated. The modal interferometer is fabricated by splicing the two end...
Modal analysis and coupling in metal-insulator-metal waveguides
coupling metal-insulator-metal waveguides
2015/8/10
This paper shows how to analyze plasmonic metal-insulator-metal waveguides using the full modal structure of these guides. The analysis applies to all frequencies, particularly including the near infr...
Numerical optimization of polarizing beam splitter gratings and modal explanation
diffractive optics rigorous coupled-wave analysis modal method polarizing beam splitter
2011/5/6
We describe high-density deep-etched fused-silica transmission polarizing beam splitter (PBS)
gratings and their simple physical explanation. Optimized numerical results of the grating depth
and per...
Simple Modal Analysis Method for Multi-Mode Fibers
Simple Modal Analysis Method Multi-Mode Fibers
2015/7/16
We demonstrate a simple technique to measure the modal content of a multi-mode optical fiber by using a tunable source and a camera, and processing the near-field images measured at the fiber output.
Influence of modal filtering on the bandwidth of multimode optical fibers
telecommunications LAN
2011/5/3
The multimode (MM) optical fiber maximum operational range is defined by the fiber bandwidth (related to the intermodal dispersion) rather than by the fiber attenuation. The relationship between the m...
Anomalous modal structure in a waveguide with a photonic crystal core
Anomalous modal structure waveguide photonic crystal core
2015/8/11
We analyze a dielectric waveguide with a photonic crystal core. Using constant frequency contour analysis,we show that the modal behavior of this structure is drastically different from that of a conv...