All-optic scheme for automatic polarization division demultiplexing

All-optic scheme for automatic polarization division demultiplexing.

We describe a cost effective scheme to automatically separate two polarization channels in a polarization division multiplexing (PDM) system, without having to modify the existing transmitter or receiver electronics or software. We experimentally validate the concept by achieving an extinction ratio of more than 28-dB between two demultiplexed channels. Finally, we successfully demonstrate the ...

Ultrafast time-division demultiplexing of polarization-entangled photons.

Maximizing the information transmission rate through quantum channels is essential for practical implementation of quantum communication. Time-division multiplexing is an approach for which the ultimate rate requires the ability to manipulate and detect single photons on ultrafast time scales while preserving their quantum correlations. Here we demonstrate the demultiplexing of a train of pulse...

A Very Compact, High Speed and Rugged Acousto-Optic Tunable Filter for Wavelength Division Demultiplexing in Fiber Optic Communication Networks

Eecient Demultiplexing of Network Packets by Automatic Parsing Eecient Demultiplexing of Network Packets by Automatic Parsing

Packet lters are a mechanism for eeciently demultiplexing network packets to application endpoints. There is currently no general, formal speciication method for packet lters that allows for easy or eecient composition of speciications. In this paper we present an automatic approach that achieves all of these goals. We approach packet lter speciication as a language recognition problem: each lt...

Narrowband, polarization insensitive all-fiber acousto-optic tunable bandpass filter.

We demonstrate an all-fiber acousto-optic tunable bandpass filter exhibiting narrow optical bandwidth and negligible polarization dependence by employing a novel ultraviolet (UV)-induced core-mode blocker written in a high numerical aperture (NA) fiber. It was demonstrated that the device had the measured 3-dB optical bandwidth of 0.65 nm, the polarization-dependent center-wavelength splitting ...