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A Prototype of Signal Degradation Monitor Based on Wavelength Resolved Stokes Vector Analysis Featuring a Function of Identification of the Cause of Degradation
Optical communications Networks
2015/5/26
We resolved signal degradations due to DGD and OSNR from a single monitor source.We verified a precision of +/-0.2dB of Q-value experimentally with a monitor prototype and 160Gb/s signal.
Minimally Intrusive Identification of Traffic-Bearing Optical Fibers
Traffic-Bearing Optical Fibers Minimally Intrusive Identification
2015/5/18
An ongoing problem in any network finds craft personnel opening incorrect optical circuits for diagnosis. We demonstrate an instrument that non-intrusively induces a time-varying loss on optical fiber...
OTM- and OTDR-based cost-efficient Fiber Fault Identification and Localization in Passive Optical Network
OTM Passive Optical Network OTDR-based cost-efficient Fiber Fault
2015/5/18
PON monitoring based on combined Optical Time Domain Reflectometry (OTDR) and Optical Transceiver Monitoring (OTM) is presented. The results on a 25-km 1:32 PON prove the concept and show ~0.02 dB acc...
650 Gbit/s OTDM Transmission over 80 km SSMF Incorporating Clock Recovery, Channel Identification and Demultiplexing in a Polarisation Insensitive Receiver
Fiber optics communications Optical communications
2015/6/10
Error free low penalty 650 Gbit/s OTDM transmission is demonstrated using a polarisation independent receiver based on FWM for demultiplexing. Spectral shaping in the transmitter and filtering in the ...
Novel Optical Fiber Identification Method for PONs Based on Polarization Modulation Caused by Pressure-Induced Retardation
Optical Fiber PONs Polarization Modulation Caused Pressure-Induced Retardation
2015/7/17
We proposed a new technique for identifying fibers in PONs using polarization-modulation caused by a transverse force. We demonstrate our method using conventional and bend-insensitive fibers in a bra...
New Optical Fibre Line Testing System Function for Facility Location and Identification Using Multivalued Brillouin Frequency Shift Assigned Fibre
Optical Fibre Line Testing System Function IMultivalued Brillouin Frequency Shift Assigned Fibre
2015/7/17
We propose a new optical fibre line testing system function for locating and identifying facilities in optical fibre networks with high accuracy by using 1 cm of multivalued Brillouin frequency shift ...
Bit Rate Identification Using Asynchronous Delay-tap Sampling
Bit Rate Identification Asynchronous Delay-tap
2015/7/31
We demonstrate a method for determining the bit rate with an accuracy of better than 0.5% based upon second-order autocorrelation and asynchronous delay-tap sampling for NRZ, NRZ-DPSK and RZ formats.
Demonstration of Master-Slave Type Deskew Function for Optical Virtual Concatenation using OTU3 Multiframe Identification
Master-Slave Type Deskew Function Optical Virtual Concatenation OTU3 Multiframe Identification
2015/7/31
Deskew function using OTU3 multiframe identification is demonstrated. Master-slave type deskew method with simple configuration is proposed to realign skewed parallel data. Skew is successfully compen...
An Image Identification System of Seal with Fingerprint Based on CMOS Image Sensor
CMOS image sensor USB2.0 interface Image identification system MCU
2011/12/12
CMOS image sensors now become increasingly competitive with respect to their CCD counterparts, while adding advantages such as no blooming, simpler driving requirements and the potential of on-chip in...
Calibration free laser-induced breakdown spectroscopy (LIBS) identification of seawater salinity
laser-induced breakdown spectroscopy (LIBS)
2011/5/3
Laser-induced breakdown spectroscopy (LIBS) has been used as a remote sensing system to analyze seawater samples and to identify their salinities without ordinary calibration curves. The plasma is gen...