Performance of a 50 Gbit/s optical time domain multiplexed system using a terahertz optical asymmetric demultiplexer

Sokoloff, J. P.; Glesk, Ivan; Prucnal, Paul R.; Boncek, Raymond K.

doi:10.1109/68.265902

Cited by 87 publications

(23 citation statements)

References 6 publications

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“…The mathematical model suitable for crosstalk simulations has been demonstrated. The simulation results are in good agreement with the practical experimental results, which have been reported by other researchers 8 . It has been shown that there exists a tradeoff between crosstalk and data rate.…”

Section: Resultssupporting

confidence: 82%

<title>Simulation of all-optical time division multiplexed router</title>

et al. 2001

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To date most research on optical networking has concentrated on wavelength-division multiplexing (WDM), which routes different packets according to the wavelength of the optical carrier. Optical time-division multiplexing (OTDM) is considered as an alternative to WDM for future networks and with single stream data rates of 100 Gb/s using a single wavelength at high (up to 100 Gbit/s) data rates [1][2][3] .In this paper we have developed a model of an all optical router based on the terahertz optical asymmetric demultiplexer (TOAD). The model architecture is based on a system which has as its input an OTDM packet containing header and payload information. The model simulates extraction of header information from the data stream using one TOAD, which is subsequently used to make a routing decision. The payload information is routed through a second TOAD according to the information contained in the header.Simulations require the use of the TOAD in two distinct modes 1). A bit level demultiplexer for the header 2). A frame level demultiplexer for the payload. Consequently less stringent requirements are required with regard to the TOAD switch resolution for payload demultiplexing compared to header demultiplexing. However, as our simulations show the wider window allowed in case 1 introduces a higher level of residual crosstalk. In case 2 the higher resolution imposes a greater restriction on the jitter present.At this stage a simple 1 by 2 router is presented, however further work will enhance the model to a network with multiple inputs and outputs.

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Section: Resultssupporting

confidence: 82%

<title>Simulation of all-optical time division multiplexed router</title>

et al. 2001

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“…10 and all use the differential switching scheme. The switching devices based on the Sagnac interferometer are known as SLALOM (semiconductor laser amplifier in a loop mirror [35,36] or TOAD (terahertz optical asymmetric demultiplexer [37,38]. In the Sagnac interferometer, the data pulses are injected into port (1) of the 3-dB coupler and propagate as clockwise and as counterclockwise pulses in the loop.After one round trip in the loop, the clockwise and counterclockwise pulses recombine again at the 3 dB-coupler with a phase difference, which is determined by the control pulse injected into port (C).…”

Section: Switching Based On Cross-phase Modulation (Xpm)mentioning

confidence: 99%

High-speed optical signal processing using semiconductor optical amplifiers

2005

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The authors report on all-optical switching devices based on semiconductor optical amplifiers (SOA) in applications for optical time division multiplexing (OTDM) transmission technology. The report includes a discussion on the basic properties of an SOA on the nonlinear processes of cross-phase modulation and four-wave mixing in the SOA used for all-optical switching and on the application of the SOA as demultiplexer add-drop multiplexer clock recovery and wavelength converter. The devices considered here operate at data rates in excess of \Gb80 where electrical signal processing is not available today

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“…In recent years, the TOAD-based gate has taken an important role in the field of optical communication and information processing (Chattopadhyay and Roy 2008;Chattopadhyay et al 2009a,b;Sokoloff et al 1994;Zoiros et al 2007;Houbavlis and Zoiros 2003a,b;Zoiros et al 2005a,b;Menon et al 2003). Sokoloff et al (1993) demonstrated a new device, the terahertz optical asymmetric demultiplexer (TOAD) capable of demultiplexing data at 50 Gbits/s.…”

Section: Operational Principle Of Toad-based Optical Switchmentioning

confidence: 99%

All-Optical Incrementer/Decrementer with the Help of Semiconductor Optical Amplifier-Assisted Sagnac Switch

Gayen¹,

Roy²,

Pal³

et al. 2010

International Journal of Optomechatronics

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In this article, an all-optical adder based incrementer/decrementer circuit is proposed and described with the help of Semiconductor Optical Amplifier (SOA)-assisted Sagnac switch. The proposed design is more efficient in terms of speed and hardware complexity. The article describes the incrementer/decrementers using a set of optical half adder and full adder. The principle and possibilities of all-optical incrementer/decrementers is explained. A theoretical model is presented and verified through numerical simulation. The new method promises both higher processing speed and accuracy. The model can be extended for studying more complex all-optical circuit of enhanced functionality in which incrementer/decrementers is the basic building block.

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Performance of a 50 Gbit/s optical time domain multiplexed system using a terahertz optical asymmetric demultiplexer

Cited by 87 publications

References 6 publications

<title>Simulation of all-optical time division multiplexed router</title>

<title>Simulation of all-optical time division multiplexed router</title>

High-speed optical signal processing using semiconductor optical amplifiers

All-Optical Incrementer/Decrementer with the Help of Semiconductor Optical Amplifier-Assisted Sagnac Switch

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