scholarly journals Highly sensitive liquid level monitoring system utilizing polymer fiber Bragg gratings

2015 ◽  
Vol 23 (5) ◽  
pp. 6058 ◽  
Author(s):  
Carlos A. F. Marques ◽  
Gang-Ding Peng ◽  
David J. Webb
Keyword(s):  
Monitoring System ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Liquid Level ◽  
Polymer Fiber ◽  
Highly Sensitive ◽  
Level Monitoring

A low-cost acceleration monitoring system based on dual fiber Bragg gratings

Optik ◽  
2015 ◽  
Vol 126 (19) ◽  
pp. 1803-1805 ◽  
Author(s):  
Yongjiao Wang ◽  
Yinquan Yuan ◽  
Lei Liang
Keyword(s):  
Monitoring System ◽  
Low Cost ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings

Performance analysis of long band passive optical network using amplifier spontaneous noise and fiber Bragg gratings

2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Ranbir Singh Mohal ◽  
Rajbir Kaur ◽  
Charanjit Singh
Keyword(s):  
Fault Detection ◽  
Optical Networks ◽  
Monitoring System ◽  
Dispersion Compensation ◽  
Optical Network ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Passive Optical Network ◽  
Spontaneous Noise ◽  
L Band

Abstract Long band (L-Band) passive optical networks (PONs) are attracting a lot of attention these days, thanks to rising capacity demands. Because of PONs requesting more and more channels, fault detection/monitoring is critical. Fault detection in the conventional band (C-Band) employing reflecting Fiber Bragg Gratings (FBGs) and a probe signal integrating an additional amplified spontaneous noise (ASEN) source has been frequently demonstrated. However, interference occurs when ASEN and transmitter signals are in the same wavelength band, and adding additional ASEN sources to the network raises the overall cost. So, in L-Band PONs, a cost-effective, low-complexity fault detection/monitoring system is required. Therefore, in this work, a fault detection/monitoring system for L-Band PON using C-Band ASEN from inline erbium doped fiber amplifier (EDFA) and dual purpose FBG, i.e. (1) ASEN reflection for fault monitoring and (2) dispersion compensation is proposed. A 4 × 10 Gbps L-Band PON is investigated over 40 km feeder fiber (FF) and 1 km drop fibers (DFs) that serve 32 optical network units (ONUs)/different input powers, dispersion values, and laser linewidths in terms of reflective power of FBGs, eye opening factor, and bit error rate (BER), respectively.

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