Photonic wavelength-division and time-division hybrid switching system utilizing coherent optical detection

1990 ◽  
Vol 2 (4) ◽  
pp. 301-303 ◽  
Author(s):  
N. Shimosaka ◽  
M. Fujiwara ◽  
S. Murata ◽  
N. Henmi ◽  
K. Emura ◽  
...  
Keyword(s):  
Optical Detection ◽  
Switching System ◽  
Wavelength Division ◽  
Time Division ◽  
Hybrid Switching

scholarly journals Applications of matrix-geometric solutions for queueing performance evaluation of a hybrid switching system

1989 ◽  
Vol 31 (2) ◽  
pp. 219-239 ◽  
Author(s):  
Moshe Zukerman
Keyword(s):  
Steady State ◽  
Packet Delay ◽  
Arrival Process ◽  
Exact Results ◽  
Queue Size ◽  
Switching System ◽  
Hybrid Switching ◽  
Geometric Solutions ◽  
Best Fit ◽  
Queueing Performance

AbstractWe consider a hybrid switch which provides integrated packet (asynchronous) and circuit (isochronous) switching. Queue size and delay distribution of the packet switched traffic in the steady state are derived by modelling the packet queue as a queue in a Markovian environment. The arrival process of the packets as well as of the circuit allocation requests are both modelled by a Poisson process. The analysis is performed for several circuit allocation policies, namely repacking, first-fit (involving static or dynamic renumbering) and best-fit. Both exact results and approximations are discussed. Numerical results are presented to demonstrate the effect of increase in packet and circuit loading on the packet delay for each of the policies.

Radio Over Fiber-Based Wavelength Division Multiplexed/Time Division Multiplexed Passive Optical Network Architecture Employing Mutual Injection Locked Fabry-Perot Laser Diodes

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Binoy Das ◽  
Paulomi Mandal ◽  
Khaleda Mallick ◽  
Rahul Mukherjee ◽  
Gour Chandra Mandal ◽  
...  
Keyword(s):  
Optical Network ◽  
Laser Diodes ◽  
Radio Over Fiber ◽  
Injection Locking ◽  
Passive Optical Network ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Fabry Perot ◽  
Time Division ◽  
Mutual Injection Locking

AbstractWe demonstrate a radio-over-fiber-based hybrid wavelength-division-multiplexed/time division multiplexed passive optical network (PON) to transmit 5 Gbps data rate to serve 32 subscribers. A broadband light source (BLS) is realized by mutual injection locking between two Fabry-Perot laser diodes at the transmission section to seed wavelength-division-multiplexed channels. Mutual injection locking technique is used to enhance the performance over single Fabry-Perot laser diode and 15  dB/Hz improvements in relative intensity noise(RIN) is realized in our proposed network system. All-optical up-conversion of a 10-GHz 1.25 Gbps on off keying radio frequency (RF) signal is achieved using one single-arm Mach-Zehnder modulator (MZM). Transmission performance over 25-km single mode fiber is investigated. Low bit error rate with enhanced eye-diagram is obtained in our proposed system. As a result, the radio over fiber (ROF)-based wavelength-division-multiplexed/time division multiplexed PON set up employing mutually injection locked Fabry-Perot laser diodes can be a better choice in high speed long-haul optical communication system.

scholarly journals OPTICAL ADD DROP MULTIPLEXERS (OADMS) IN UW-WDM OPTICAL PASSIVE COMMUNICATION NETWORKS

2010 ◽  
pp. 152-164
Author(s):  
Abd El-Naser A. Mohammed ◽  
Ahmed Nabih Zaki Rashed ◽  
Mahmoud M.A. Eid
Keyword(s):  
Optical Networks ◽  
Communication Networks ◽  
Wavelength Division Multiplexing ◽  
Bit Rate ◽  
Wavelength Division ◽  
Major Interest ◽  
Wide Range ◽  
Soliton Transmission ◽  
Time Division ◽  
Maximum Transmission

In the present paper, we have been modeled numerically and parametrically the high and best performance functions of optical add drop multiplexers (OADMs) for ultra wide wavelength division multiplexing technique with ultra wide space division multiplexing technique in advanced optical communication networks and photonic networking over the assumed set of parameters. Moreover, we have analyzed and investigated the maximum time division multiplexing (MTDM) and soliton transmission techniques to be processed to handle bit rate either per link or per channel for cables of multi-links (20-120 links/core). Where maximum number of transmitted channels in the range of 1000-4800 channels are processed to handle the product of bit rate either per channel or per link for cables of multilinks of silica cable core fabrication material. The MTDM or soliton transmission bit rates either per link or per channel are also treated over wide range of the affecting parameters under the ambient temperature variations. Also, the performance characteristics of the OADMs are taken as the major interest in optical networks to handle maximum transmission bit rates for the supported subscribers.

A photonic wavelength-division switching system using tunable laser diode filters

1990 ◽  
Vol 8 (5) ◽  
pp. 660-666 ◽  
Author(s):  
S. Suzuki ◽  
M. Nishio ◽  
T. Numai ◽  
M. Fujiwara ◽  
M. Itoh ◽  
...  
Keyword(s):  
Laser Diode ◽  
Tunable Laser ◽  
Switching System ◽  
Wavelength Division ◽  
Tunable Laser Diode ◽  
Wavelength Division Switching
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