100 channel optical FDM technology and its applications to optical FDM channel-based networks

Nosu, K.; Toba, H.; Inoue, Kyo; Oda, Kazuhiro

doi:10.1109/50.233239

Cited by 42 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…I N OPTICAL frequency division multiple access (OFDMA), a number of channels can be concurrently established [1]. For OFDMA, conventional access protocols such as token ring and carrier sense multiple access/code division (CSMA/CD) invite poor performance as the propagation delay becomes long compared to the packet length [2].…”

Section: Introductionmentioning

confidence: 99%

Carrier sense using subcarrier-multiplexed signaling for optical frequency division multiple access

Kitayama

1997

J. Lightwave Technol.

View full text Add to dashboard Cite

A novel subcarrier multiplexing based carrier sense technique called SCM-CS is proposed and is experimentally demonstrated. It can prevent the contention in optical frequency division multiple access networks that use an access protocol based on a fixed-wavelength transmitter and wavelength-tunable receiver. When two or more SCM signals on the same subcarrier frequency at different wavelengths simultaneously address the same destination node, SCM-CS detects the sum of the subcarrier frequencies by using RF heterodyne detection and denies the access. SCM-CS permits node access only if the carrier sense is negative which means that the destination node is idle. In the experiment, SCM-CS is successfully performed for 6.2 Mb/s SCM signals of the subcarrier frequency of 164 MHz with the frequency difference of the optical carriers up to 40 GHz.Index Terms-Heterodyning, local area networks, optical fiber communication, subcarrier multiplexing, wavelength division multiplexing.

show abstract

Section: Introductionmentioning

confidence: 99%

Carrier sense using subcarrier-multiplexed signaling for optical frequency division multiple access

Kitayama

1997

J. Lightwave Technol.

View full text Add to dashboard Cite

show abstract

“…Photonic frequency-division-multiplexing (FDM) systems have recently been widely studied for possible use in future large-capacity transport networks [1]- [5]. In addition, FDM technologies make it possible to design a compact, distributed network architecture by using frequency to perform such system-oriented functions as routing, switching, and service segregation.…”

mentioning

confidence: 99%

FRONTIERNET: frequency-routing-type time-division interconnection network

Sasayama

Yamada

Habara

et al. 1997

J. Lightwave Technol.

View full text Add to dashboard Cite

This paper describes a photonic time division multiplexing (TDM) highway switch, called FRONTIERNET, that uses optical frequency as routing information. This switch architecture can be applied to asynchronous transfer mode (ATM) switching systems. The N 2 N switch consists of N tunable frequency convertors and N frequency-division-multiplexed (FDM) output buffers connected through an N 2 N frequency router. The router can interconnect N input highways with N output highways in a completely noninterfering way. It is possible to address each output highway uniquely by the choice of frequency (frequency routing) and each output highway can receive any given frequency from only one input. This switch architecture therefore has three advantages: its novel output buffering scheme achieves the best possible performance, there is no need for a complicated contention resolution mechanism between input highways, and there is no splitting loss of the transmitted optical power. An experimental switch with a one-cell FDM buffer was constructed. The tunable frequency convertor based on fast tunable frequency lasers can transmit high-speed optical cells to which frequencies are assigned on a cell-by-cell basis. The frequency router is an integrated-optic arrayed-waveguide grating 16 2 16 filter produced by using planar-lightwave- circuit (PLC) technology. The one-cell FDM output buffer based on optical fiber delay lines can store FDM cells and selectonly one cell at each timeslot over the output highway. A 2.5-Gb/s experimental switch was successfully operated. And an experimental FDM loop buffer was also demonstrated. This stores two cells at a data rate of 2.5 Gb/s. The bit error rate (BER) of the cells after up to 10 circulations is <10 09 . The performance of the buffer in terms of the probability of cell loss and the cell waiting time in the buffer is analyzed numerically. It is concluded that fewer optical buffers are needed to satisfy the desired probability of the cell loss compared with the conventional electronic buffers. The scale of the switch can be expanded in a modular fashion in two ways: using a multistage frequency router and a multistage switching network. And the multihop FRONTIERNET architecture is proposed to reduce the required frequency channels rather than the single-hop FRONTIERNET. The switch scale is also very easy to expand by connecting the frequency-router-based switching submodules.

show abstract

“…Optical transmission over single-mode optical fiber (SMF) offers serialized channel transmission rates of 10 GHz (Sonet OC-12) which are likely to increase to >40 GHz over the next several years, and the demonstrated potential for 100-channel WDM systems [9]. Unfortunately, such SMF technology is unsuitable for robust, cost-effective computer interconnects and embedded systems for several reasons.…”

Section: Optical Interconnect Hardware Approachmentioning

confidence: 99%

High-performance parallel processors based on star-coupled WDM optical interconnects

Groot

Deri²,

Haigh³

et al.

Proceedings of Massively Parallel Processing Using Optical Interconnections

View full text Add to dashboard Cite

April 1996This is a preprint of a paper intended for publication in a journal or proceedings. Since changes may be made before publication, this preprint is made available with the understanding that it will not be cited or reproduced without the permission of the author. PREPRINT AbstractAs the performance of individual processing elements within parallel processing systems increases, increased capability to communicate information between individual processor and memory elements is required. Since the limited performance of today's electronic interconnects will likely prevent the system from achieving its ultimate performance, there is great interest in using fiber optics to improve interconnect communication. Many groups have considered approaches based on WDM, star-coupled fiber optics for moderate size multiprocessors. Here we propose a fiber optic transceiver approach to such systems that can provide low latency, high bandwidth channels using a robust multimode fiber technology. We use instruction-level simulation to quantify the bandwidth, latency, and concurrency requirements that enable a multiple bus-type optical interconnect based on such transceivers to scale to 256 nodes, each operating at GFLOPS performance. Our key conclusion is that scalable performance, to ≈100 GFLOPS, is achievable for scientific application kernels using a small number of wavelengths (8 to 32), one optical bus receiver per node, and achievable optoelectronic bandwidth and latency requirements.2

show abstract

100 channel optical FDM technology and its applications to optical FDM channel-based networks

Cited by 42 publications

References 22 publications

Carrier sense using subcarrier-multiplexed signaling for optical frequency division multiple access

Carrier sense using subcarrier-multiplexed signaling for optical frequency division multiple access

FRONTIERNET: frequency-routing-type time-division interconnection network

High-performance parallel processors based on star-coupled WDM optical interconnects

Contact Info

Product

Resources

About