scholarly journals White Rabbit Multi-Point Time Distribution Network

2021 ◽  
Author(s):  
Erik Dierikx ◽  
Yan Xie ◽  
Adrian Savencu ◽  
José Lopez ◽  
José Luis Gutiérrez
Keyword(s):  
Optical Fiber ◽  
Time Distribution ◽  
Performance Study ◽  
Delay Compensation ◽  
Fiber Network ◽  
Precision Time ◽  
Set Up ◽  
Redundant Operation ◽  
Master Clock ◽  
Priority Algorithm

A nanosecond-accuracy, scalable, multi-point time- and frequency dissemination has been set up in an existing DWDM optical fiber network spanning approximately 200 km, using the White Rabbit (WR) Precision Time Protocol (PTP). Presented novelties in this paper are: a performance study of 5 cascaded WR switches allowing a wide fan-out; reference delay compensation ensuring that the time received by the user is synchronized with the reference timescale within a few nanosecond offset; experiments with a master clock priority algorithm for redundant operation and experimental results of hold-over performance.

scholarly journals White Rabbit Multi-Point Time Distribution Network

2021 ◽  
Author(s):  
Erik Dierikx ◽  
Yan Xie ◽  
Adrian Savencu ◽  
José Lopez ◽  
José Luis Gutiérrez
Keyword(s):  
Optical Fiber ◽  
Time Distribution ◽  
Performance Study ◽  
Delay Compensation ◽  
Fiber Network ◽  
Precision Time ◽  
Set Up ◽  
Redundant Operation ◽  
Master Clock ◽  
Priority Algorithm

A nanosecond-accuracy, scalable, multi-point time- and frequency dissemination has been set up in an existing DWDM optical fiber network spanning approximately 200 km, using the White Rabbit (WR) Precision Time Protocol (PTP). Presented novelties in this paper are: a performance study of 5 cascaded WR switches allowing a wide fan-out; reference delay compensation ensuring that the time received by the user is synchronized with the reference timescale within a few nanosecond offset; experiments with a master clock priority algorithm for redundant operation and experimental results of hold-over performance.

Automatic set-up for advanced optical fiber elements manufacturing

2005 ◽  
Author(s):  
Karol Stasiewicz ◽  
Leszek R. Jaroszewicz
Keyword(s):  
Optical Fiber ◽  
Set Up

scholarly journals Reconfigurable optical multiplexer based on liquid crystals for polymer optical fiber networks

2006 ◽  
Vol 14 (4) ◽  
Author(s):  
P. Lallana ◽  
C. Vázquez ◽  
J. Pena ◽  
R. Vergaz
Keyword(s):  
Optical Fiber ◽  
Wavelength Division Multiplexing ◽  
Optical Sensors ◽  
Integrated Circuit ◽  
Electronic System ◽  
Polymer Optical Fiber ◽  
Fiber Network ◽  
Fiber Networks ◽  
Graded Index ◽  
Optical Fiber Networks

AbstractIn this work, different novel 3×1 multiplexer structures for being used in polymer optical fiber networks are proposed. Designs are compact, scalable, and of low consumption, capable of operating in a large wavelength range simultaneously 660, 850, and 1300 nm, due to the use of nematic liquid crystal cells. Light that comes from each input port is handled independently and eight operation modes are possible.Control electronics has been made using a programmable integrated circuit. Electronic system makes available the managing of the optical stage using a computer. An additional four optical sensors have been included for allowing the optical status checking.Finally, a polarization independent multiplexer has been implemented and tested. Insertion losses less than 4 dB and isolation better than 23 dB have been measured. In addition, 30-ms and 15-ms setup and rise times have been obtained. The proposed multiplexer can be used in any polymer optical fiber network, even in perfluorinated graded index one, and it can be specially useful in optical sensor networks, or in coarse wavelength division multiplexing networks.

Performance Study of a Hybrid Heat Pump Dryer based on Numerical Analysis and Experimental Set-up

2020 ◽  
Author(s):  
Mohamed Murshid Shamsuddeen ◽  
Dong-An Cha ◽  
Seon-Chang Kim ◽  
Toshiaki Kanemoto ◽  
Jin-Hyuk Kim
Keyword(s):  
Numerical Analysis ◽  
Heat Pump ◽  
Performance Study ◽  
Hybrid Heat Pump ◽  
Set Up

Transmission Performance Comparison of 16*100 Gbps Dense Wavelength Division Multiplexed Long Haul Optical Networks at Different Advance Modulation Formats under the Influence of Nonlinear Impairments

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Farman Ali ◽  
Yousaf Khan ◽  
Shahryar Shafique Qureshi
Keyword(s):  
Optical Fiber ◽  
Optical Networks ◽  
Dispersion Compensation ◽  
Performance Comparison ◽  
Network System ◽  
Modulation Formats ◽  
Fiber Network ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Modulation Format

AbstractHigher spectral efficiency and data rate per channel are the most cost-effective approaches to meet the exponential demand of data traffic in optical fiber network communication system. In this paper, diverse modulation formats are analyzed for Dense Wavelength Division Multiplexed system at 100 Gbps * 16=1600 Gbps data rates. The performance analysis of proffered system for Non-Return to Zero, Return to Zero, Carrier- Suppressed Return to Zero and Duo binary RZ with duty cycle 0.5 to 0.7 ranges like modulation formats are considered to find optimum modulation format for a 100 Gbps bit rate per channel optical fiber transmission network system. The simulations are analyzed for different values of input power, length of fiber, nonlinear refractive index, nonlinear dispersion and nonlinear effective area for all above mentioned modulation formats with spacing 100 to 250 GHz. to evaluate the effect of modulation format Fiber Bragg Gratting, optical fiber amplifier and Dispersion Compensation Fiber dispersion compensation techniques are enacted on this proposed optical network system.

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