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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...
Optimization of Cost Efficient Multilevel-ASK Modulation Formats under the Constraint of Chromatic Dispersion
Modulation Fiber optics communications
2015/6/5
Due to their narrow spectrum, multilevel modulation ASK-formats can increase the chromatic dispersion tolerance of optical systems. Since they suffer more from inter-symbol interference than binary si...
Cost Efficient Directly Modulated DPSK Downstream Transmitter and Colourless Upstream Remodulation for Full-duplex WDM-PONs
Optical communications Phase modulation
2015/6/4
We implement a cost efficient 10.7Gb/s directly modulated DPSK transmitter in a bidirectional WDM-PON, which also remodulates the downstream phase encoded signal for 2.5Gb/s OOK upstream transmission.
Management and Control Scheme Employing Wavelength-Grouped Transmission-Guaranteed Link for Highly-Manageable and Cost-Efficient Transparent Optical Mesh Networks
Employing Wavelength-Grouped Transmission-Guaranteed Link Transparent Optical Mesh Networks
2015/7/17
This paper proposes a GMPLS-based management and control scheme that visualizes the route and available resources considering optical reachability and wavelength assignment in transparent-optical-mesh...
COST-EFFICIENT WDM QAM TRANSMISSION OF 100 Mbit/s OVER 100m 1mm CORE DIAMETER POLYMER OPTICAL FIBER
COST-EFFICIENT WDM QAM TRANSMISSION POLYMER OPTICAL FIBER
2015/8/3
By transporting the I- and Q-baseband QAM components using two inexpensive 460nm and 520nm wavelength LEDs, 100Mbit/s transmission over 100m large core SI PMMA POF has been realized.
Cost Efficient Non-Service Interrupting Monitoring of Optical Fiber Links in FTTH / FTTB Networks
Cost Efficient Non-Service Interrupting Monitoring Optical Fiber Links FTTH / FTTB Networks
2015/7/31
We present recent advances in low cost fiber monitoring techniques for FTTH/FTTB networks employing integrated means for localizing fiber faults and for testing fiber connectivity in PONs.