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Bandwidth Measurement of Multimode Fibers through System Level Bit Error Rate Testing
Bandwidth Measurement Multimode Fibers Bit Error Rate Testing
2015/5/18
A new bandwidth measurement method for multimode fibers is developed through measuring bit error rate and power penalty associated with the testing system. Experimental calibration procedure and actua...
300 Mbps Transmission with 4.6 bit/s/Hz Spectral Efficiency over 50 m PMMA POF Link Using RC-LED and Multi- Level Carrierless Amplitude Phase Modulation
300 Mbps Transmission 4.6 bit/s/Hz Spectral Efficiency PMMA POF Link Multi- Level Carrierless Amplitude Phase Modulation
2015/5/18
Successful transmission of up to 300 Mbps over a 50 m long POF link using a commercially available Fast Ethernet capable RC-LED is presented. Carrierless Amplitude Phase modulation was used with 16- a...
Full inversion of a two-level atom with a single-photon pulse in one-dimensional geometries
Full inversion two-level atom single-photon pulse one-dimensional geometries
2015/8/10
We analyze a system comprising a one-dimensional single-mode waveguide (a) coupled directly to a two-level atom (b) side-coupled to a cavity containing a two-level atom and show that in both cases it ...
Fiber Based Ultrashort Pulse System with Kilowatt Level Average Power
Fiber optics amplifiers oscillators Ultrafast Lasers
2015/6/9
We report on the generation of 830 W of compressed average power at 78 MHz pulse repetition frequency and 640 fs pulse duration. We discuss further power scaling including the issue of transversal spa...
A “Linear” High-Contrast Gratings Hollow-Core Waveguide and its System Level Performance
Gratings Nonlinear Systems Waveguides
2015/6/9
The high-contrast gratings assisted hollow-core waveguide demonstrates an ultra-low nonlinearity (<6×10 -13 /W/m). Digital and analog system-level simulations further show that the waveguide does not...
Theory of single-photon transport in a single-mode waveguide. I. Coupling to a cavity containing a two-level atom
single-photon transport single-mode waveguide cavity containing two-level atom
2015/8/10
The single-photon transport in a single-mode waveguide, coupled to a cavity embedded with a two-level atom, is analyzed. The single-photon transmission and reflection amplitudes, as well as the ...
High Linearity and High Responsivity UTC Photodiode for Multi-Level Formats Applications
High Linearity High Responsivity UTC Photodiode Multi-Level Formats Applications
2015/7/20
We present an evanescent waveguide InGaAs/InGaAsP UTC PD with respectively a bandwidth > 50 GHz, a responsivity of 0.55 A/W and an IP3 of 19.7 dBm at 10 mA and 20 GHz.
Watt-Level Bi-Doped Fiber Lasers:Breakthrough into 1300 – 1500 nm Wavelength Region
Watt-Level Bi-Doped Fiber Lasers Wavelength Region
2015/7/16
Watt-level ~20% efficiency Bi fiber lasers have been demonstrated at 1340 and 1480 nm for the first time. Optical properties of Bi-doped phosphogermanosilicate fibers depending on core composition wer...
Single Frequency free-runing low noise compact External-Cavity VCSELs at high power level (50mW)
Single Frequency free-runing low noise compact External-Cavity VCSEL high power level
2015/8/6
We present a highly coherent semiconductor device formed by a ½-VCSEL and an external concave mirror. The low noise single-frequency TEM00 laser exhibits 50mW output power with a linewidth <1kHz.
Multi-level Burst Power Transient Suppression using Semiconductor Optical Amplifiers in Gigabit Access Links
Power Transient Suppression Semiconductor Optical Amplifiers Gigabit Access Links
2015/8/6
For 10 Gb/s transmission limited by multi-level burst transients to non error-free performance, including an SOA reduces the penalty to 0.4 dB relative to back-to-back transmission.