Contribution to the performances study of Optical Time Division Multiplexing OTDM and OTDM/WDM hybrid multiplexing at 160 Gbps

Kherici, Cheikh; Kandouci, Malika

doi:10.1109/wits.2019.8723826

Cited by 1 publication

(7 citation statements)

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“…To increase network capacity, WDM maximizes the entire bandwidth in optical fiber. The technique combined several signals (λ1, λ2, λ3,…,λN) from a different transmitter in a multiplexer, and the combined signal is transmitted on the same fiber; in this case, each channel has its dedicated bandwidth, and all signals have the same time of arrival [63]. Fig.…”

Section: ) Multiplexing Techniques: A) Mechanism Of Multiplexingmentioning

confidence: 99%

“…Time Division Multiplexing (TDM) is a technique commonly used in digital multiplexing. TDM allows one or more transmitters to transmit low or medium bit rates on the same high-speed channel [63]. The narrow pulses from different channels are interleaved and transmitted sequentially; thus, the single-fiber link bandwidth utilization increases [23].…”

Section: B) Optical Time Division Multiplexingmentioning

confidence: 99%

“…Optical Time Division Multiplexing (OTDM) is an alternative technology developed to increase the digital optical fiber system bit rate to exceed the limits. OTDM system combines optical data at basic bit rate B and the number of channels N in the time domain to obtain a higher associated bit rate (N x B) [63]. Despite using different optical sources, the signals are emitted at the same optical wavelength [23].…”

Section: B) Optical Time Division Multiplexingmentioning

confidence: 99%

“…The pulses from each transmitter are synchronized and delayed by a fraction of clock period ∆t. Crosstalk can be avoided if the source is able to generate optical pulses with a duration of <1/N of the clock period [63].…”

Section: B) Optical Time Division Multiplexingmentioning

confidence: 99%

“…Hybrid multiplexing is a technique that combines different optical signal multiplexing techniques. This technique is used to combine each technique's advantages; in the same way overcomes drawbacks by combining a specific technique to another [23], [63].…”

Section: E) Space-division Multiplexingmentioning

confidence: 99%

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A Comparative Survey of Coding, Multiplexing, and Equalization Techniques Used in Coherent Optical Fiber Communications

Ladrido¹,

Trinidad²,

Molina³

et al. 2021

Int. J. Adv. Sci. Eng. Inf. Technol.

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As the world advances into 5G networks, significant scientific research accomplishments are being conducted for a communication system that could further enhance the current limit of data transmission capacity. Currently, the communication systems with the highest data rate are optical fiber systems. Due to the recent advancement of coherent optical fiber communications by exploiting time, wavelength, phase, amplitude, polarization, and space, optical engineering can break the petabit barrier data rate. Thus, coherent optical fiber communications is a hot topic due to its very high data rate that could be applied or a requirement in 5G and big data analytics. This paper focuses on a comparative survey of the current applied fundamental techniques in fiber communication channels. These fundamental techniques that could be further studied and exploited to increase the bandwidth performance, decrease the error rate and energy consumption are coding, multiplexing, and equalization. At the end of this paper, a comparative result is discussed to explain the difference among the current techniques in the literature for the optical engineering community to improve collective coding, multiplexing, and equalization in coherent fiber systems.

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Section: ) Multiplexing Techniques: A) Mechanism Of Multiplexingmentioning

confidence: 99%

Section: B) Optical Time Division Multiplexingmentioning

confidence: 99%