Optical packet compressor for ultra-fastpacket-switched optical networks

Deng, Kung-Li; Kang, Kai; Glesk, Ivan; Prucnal, Paul R.; Shin, Seoyong

doi:10.1049/el:19970822

Cited by 26 publications

(11 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, minimization of the signal's spectral width for the corresponding bit rate is also desirable in terms of effective wavelength utilization. Recently, optical packet compression and/or decompression have been demonstrated using a fiber delay line lattice [11,12] or a fiber delay loop [13,14].…”

Section: Bit-rate Convertermentioning

confidence: 99%

“…Although many attempts have been made to implement such highly functional packet processing with all-optical schemes [8][9][10][11][12][13][14][15][16][17][18], at present, these approaches remain impractical. In contrast, electrical signal processing is successfully performed by CMOS circuits; however, it becomes more difficult to handle optical packets by all-electronic means as their bit-rate increases.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High-speed optical packet processing technologies based on novel optoelectronic devices

et al. 2004

View full text Add to dashboard Cite

To cope with the explosive growth of IP traffic, we must increase both the link capacity between nodes and the node throughput. These requirements have stimulated research on photonic networks that use optical technologies. Optical packet switching (OPS) is an attractive solution because it maximizes the use of the network bandwidth. The key functions in achieving such networks include synchronization, label processing, compression/decompression, regeneration, and buffering for high-speed asynchronous optical packets. However, it is impractical to implement such functions by using all-optical approaches. We have proposed a new optoelectronic system composed of a packet-by-packet optical clock-pulse generator (OCG), an all-optical serial-to-parallel converter (SPC), a photonic parallel-to-serial converter (PSC), and CMOS circuitry. The OCG provides a single optical pulse synchronized with the incoming packet, and the SPC carries out a parallel conversion of the incoming packet. The parallel converted data are processed in the smart CMOS circuit, and reconstructed into an optical packet by the photonic PSC. Our system makes it possible to carry out various functions for high-speed asynchronous optical packets. This paper reviews our recent work on high-speed optical packet processing technologies such as buffering, packet compression/decompression, and label swapping, which are key technologies for constructing future OPS networks.

show abstract

Section: Bit-rate Convertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-speed optical packet processing technologies based on novel optoelectronic devices

et al. 2004

View full text Add to dashboard Cite

show abstract

“…When the packet is dropped at its destination, it must be decompressed to local rate. Recently, several methods for optical compression and decompression have already been proposed [3][4][5][6]. Some schemes [3,4] are based on an optical recirculating loop and a sampling technique.…”

Section: Introductionmentioning

confidence: 99%

“…Some schemes [3,4] are based on an optical recirculating loop and a sampling technique. Compared with other schemes [5,6], those have the advantage in reduction of required devices, but they are more sensitive to temperature variation. Complicate temperature stabilization setup are required.…”

Section: Introductionmentioning

confidence: 99%

Packet Compression/decompression for 100 Gbit/s OTDM Networks

Wang¹,

Jian²,

Jin-tong³

2007

Journal of Optical Communications

View full text Add to dashboard Cite

In this paper, we build up a mathematical model for a fiber delay line based compressor, which can perform both compression and decompression of optical time division multiplexed (OTDM) packets. With this model, we discuss several questions associated with the compressor: Differentia Budget, Effects of Time-out. At last, compression of 2.5 Gbit/s 16 bit packet to 100 Gbit/s is experimentally demonstrated.At the input of the compressor, the signal can be given by:

show abstract

“…At the end-user side, however, low to moderate speeds are acceptable but the number of the end-users can be huge and, preferably, the existing electronic network units will remain in use, given the current prevalence of electronic communication networks. Interfacing the high speed, all optical network backbone with the low to moderate speed, preferably electronic accessing network has become a critical issue [6][7][8]. Since the cost of electronics grows exponentially with the processing speed, an ideal interface between high speed optical network backbones and low speed electronic accessing network is to convert the electronic signals of low or moderate speeds, which are inexpensive, directly into optical signals of high speed, which are readily supported by the optical channels used in the network backbone.…”

mentioning

confidence: 99%

High-ratio Electro-optical Data Compression for Massive Accessing Networks Using AOM-based Ultrafast Pulse Shaping

Yang¹,

Fetterman²,

Goswami³

et al. 2001

Journal of Optical Communications

View full text Add to dashboard Cite

High-ratio (10 5 ) direct Electro-optical data compression using AOM-based ultrafast pulse shaping at 1550 nm has been demonstrated for massive accessing network applications. Based on this technology, an optimal interface between high speed optical network backbones and low speed electronic accessing network is proposed with the potential of massive accessing, low cost, and high throughput.With recent advances in high-speed/high-throughput optical network backbones, data rates have reached from several hundred Gbit/s to more than 1 Tbit/s [1][2][3][4][5]. At the end-user side, however, low to moderate speeds are acceptable but the number of the end-users can be huge and, preferably, the existing electronic network units will remain in use, given the current prevalence of electronic communication networks. Interfacing the high speed, all optical network backbone with the low to moderate speed, preferably electronic accessing network has become a critical issue [6][7][8]. Since the cost of electronics grows exponentially with the processing speed, an ideal interface between high speed optical network backbones and low speed electronic accessing network is to convert the electronic signals of low or moderate speeds, which are inexpensive, directly into optical signals of high speed, which are readily supported by the optical channels used in the network backbone. This ideal interface minimizes the use of high speed electronics and therefore dramatically reduces system cost. We propose and demonstrate here such an interface implemented using the acousto-optic modulator (AOM) based ultrafast optical pulse shaping technique [9][10][11][12]. The proposed scheme greatly improves channel resource efficiency and allows thousands of end-users to share the optical channel. In particular, we demonstrate the compression of a 3.5 Mbit/s electronic data packet into an optical data packet with 700-Gbit/s effective data rate. The compressed optical data packet can be subsequently decompressed in the optical domain using lump dispersion devices. Combined with high speed optical add-drops [1][2][3][4][5], this high ratio data compression technique enables thousands of electronic end-users to share the bandwidthabundant optical channel directly and simultaneously. For example, in the data compression case demonstrated below, the 3.5 Mbit/s electronic data stream has been compressed to data bursts lasting only 20 ps for every 4 [is. The rest of the original 4 μβ time window is now freed up for channel multiplexing. High-speed optical add-drops, therefore, can be used to take the full advantage of this data compression capability. To illustrate this further, consider the example of a high-speed OTDM (Optical Time-Domain Multiplexing) system with a switching window of 20 ps. This system is capable of a 50 Gbit/s data transmission rate of in optical form. To generate 50 Gbit/s optical data, 50 GHz electronics must be used if direct electro-optical (EO) modulation is to be implemented. The AOM-based pulse shaping, however, will compress ...

show abstract

Optical packet compressor for ultra-fastpacket-switched optical networks

Abstract: Based on a feed-forward fibre-optic delay line structure, a 16 bit optical compression technique is demonstrated for ultra-fast packet-switched optical networks. An incoming bit rate of 100Mbit/s is converted to an outgoing bit rate of 100Gbit/s with 10.0 ± 0.9ps bit spacing

Cited by 26 publications

References 1 publication

High-speed optical packet processing technologies based on novel optoelectronic devices

High-speed optical packet processing technologies based on novel optoelectronic devices

Packet Compression/decompression for 100 Gbit/s OTDM Networks

High-ratio Electro-optical Data Compression for Massive Accessing Networks Using AOM-based Ultrafast Pulse Shaping

Contact Info

Product

Resources

About