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1.
A high speed and scalable ATM switch architecture, the TORUS-switch, is proposed. The switch is an internal speed-up crosspoint switch with cylindrical configuration. The self-bit-synchronisation technique is adopted to achieve high speed cell transmission without requiring high-density implementation technology. Distributed contention control based on the fixed output-precedence scheme is adopted. This control is so simple that the control circuit is achieved with only one gate in each crosspoint. A TORUS-switch is fabricated as an ultrahigh speed crosspoint LSI using the advanced Si-bipolar process. Measured results confirm that the TORUS-switch can be used to realise an expandable terabit-rate ATM switch that is also efficient 相似文献
2.
Experiments on selecting 56 byte optical cells out of a four-channel bit-interleave multiplexed 55 Gbit/s pulse stream are carried out using a nonlinear optical loop mirror (NOLM) including a chalcogenide glass fibre 相似文献
3.
A scalable 10 Gbit/s 4×2 ATM switch LSI circuit has been fabricated. It employs a new distributed contention control technique that makes the LSI circuit expandable. To increase the LSI circuit throughput, 0.2 μm CMOS/SIMOX (separation by implanted oxygen) technology is used. It allows the LSI circuit to offer 221 I/O pins, an operating speed of 1.25 Gbit/s and 7 W power consumption 相似文献
4.
Kawano R. Yamanaka N. Oki E. Yasukawa S. Okazaki K. Ohki A. Usui M. Sato N. Katsura K. Ando Y. Kagawa T. Hikita M. 《Advanced Packaging, IEEE Transactions on》2001,24(1):91-98
For an ATM switch system, we have developed a 100-Gb/s input/output (I/O) throughput optical I/O interface ATM switch multichip module (MCM) that has 320-ch optical I/O ports. This MCM is fabricated using ceramic (MCM-C) technology and very-small highly-parallel O/E and E/O optical converters. It uses 0.25-μm complementary metal oxide semiconductors (CMOS) ATM switch large scale integrations (LSIs) and has a total I/O throughput of up to 160 Gb/s. A prototype module with total I/O throughput of 100 Gb/s has been partially assembled using eight optical I/O interface blocks, each composed of a 40-ch O/E converter and a 40-ch E/O converter; the data rate per channel is from dc to 700 Mb/s. Using this module we developed an optical I/O interface ATM switch system and confirmed the operation of the optical interface 相似文献
5.
80 Gbit/s pulsewidth-maintained wavelength conversion based on a high-nonlinearity dispersion shifted fibre nonlinear optical loop mirror (DSF-NOLM) is realised and penalty-free transmission over 80 km conventional single mode fibre and 12 km dispersion compensating fibre of the converted signal is demonstrated for the first time 相似文献
6.
Min-Chung Ho Guinn K. Zhihao Lao Shing Lee Yu M. Mu-Lang Xu Radisic V. Wang K.C. 《Electronics letters》2003,39(5):415-416
A high bandwidth automatic-gain-control (AGC) amplifier has been designed and characterised. Fabricated in InP single-heterojunction-bipolar transistor (SHBT) technology, the measured bandwidth of the amplifier is 36 GHz with maximum small signal gain 22 dB. Capable of operating at 43 Gbit/s, this is believed to be the fastest AGC amplifier reported to date. 相似文献
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8.
Plaza P. Merayo L.A. Diaz J.C. Conesa J.L. 《Very Large Scale Integration (VLSI) Systems, IEEE Transactions on》1996,4(3):405-416
The design and implementation of two application specific integrated circuits used to build an ATM switch are described. The chip set is composed of the CMC which is an input/output processor of ATM cells implemented on a BICMOS 0.7 μm technology and the ICM, a 0.7 μm CMOS IC, that performs cell switching at 68 MHz. The ATM switch exploits parallelism and segmentation to perform 2.5 Gb/s switching per input/output. The main advantage of the high-speed link rates in the range of Gb/s, is the exploitation of statistical gain with bursty high peak rate sources. Another feature of the high speed ATM switches is that the number of interface devices and stages is reduced on an ATM network. To demonstrate the usefulness of the switch, an evaluation of the network efficiency improvement by using statistical gain is presented in the paper 相似文献
9.
Introduces cell processing large-scale integrated circuits (LSIs) suitable for byte-oriented systems operating at 2.4 Gbit/s. The LSIs are based on a newly proposed cell delineation circuit which uses a pipeline processing technology to realise byte-by-byte shift operations, an error-detect and error-correct circuit and a descrambling circuit. Prototype LSIs, constructed with a super-selfaligned process technology (SST), are tested at up to 3.7 Gbit/s.<> 相似文献
10.
A 25 Gbit/s decision circuit, a 34 Gbit/s multiplexer, and a 40 Gbit/s demultiplexer IC have been realised with selective epitaxial silicon bipolar technology using 0.8 mu m lithography. The data rates achieved are the highest values reported for these types of circuit in any IC technology.<> 相似文献
11.
A novel method for all-optical all-channel simultaneous demultiplexing based on OTDM-to-WDM conversion by four-wave mixing with a highly chirped rectangular shaped supercontinuum source is proposed. Error-free 80 to 10 Gbit/s demultiplexing operation in eight channels is experimentally demonstrated 相似文献
12.
A 40 Gbit/s 1V limiting output buffer for an AC-coupled 50 /spl Omega/ load with a differential output swing of 660 mV and a gain of 18 dB is presented. A power consumption of only 24 mW and a simulated risetime of 11 ps are achieved by means of a systematic buffer optimisation. 相似文献
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14.
Tsukada M. Wen De Zhong Matsunaga T. Asobe M. Oohara T. 《Lightwave Technology, Journal of》1996,14(9):1979-1985
An optical ATM switch is proposed in which cells from individual input channels are time-division multiplexed in a bit-interleave manner. This switch can easily handle multicast switching because it is based on a broadcast-and-select network. Compared to an alternative switch that uses a cell-interleave time-division multiplexing scheme, the proposed optical switch has a much simpler structure. It does not need a cell compressor at each input and a cell expander at each output, which greatly reduces hardware complexity. Feasibility analyzes showed that a 64×64 photonic ATM switch with 2.5 Gb/s input/output is possible using the proposed technology. In an experimental demonstration, 4 b cells were selected from a 55 Gb/s bit-interleave multiplexed cell stream by using a new nonlinear optical fiber switch. With its high switch throughput, our switch is a strong candidate for future large-capacity optical switching nodes 相似文献
15.
《Solid-State Circuits, IEEE Journal of》2006,41(10):2215-2223
In this paper, a monolithically integrated clock and data recovery (CDR) circuit with 1:2 demultiplexer (DEMUX), which is intended for use in 80 Gbit/s optical fiber links, is presented. The integrated circuit (IC) is manufactured using an in-house InP double heterostructure bipolar transistor (DHBT) technology, exhibiting cut-off frequency values of more than 220 GHz for both$f_T$ and$f_max $ . The CDR circuit in the topology of a phase-locked loop (PLL) is mainly composed of a half-rate linear phase detector including a 1:2 demultiplexer (DEMUX), a loop filter, and a voltage-controlled oscillator (VCO). Hence, the corresponding architecture of each of these components as well as the applied circuit design technique are extensively addressed. Concerning the performance achieved by the CDR/DEMUX IC, the recovered and demultiplexed 40 Gbit/s data from an 80 Gbit/s input signal feature clear eye opening with a signal swing as high as 600$hboxmV_ pp$ . The extracted 40 GHz clock signal shows a phase noise as low as$- hbox98~dBc/hboxHz$ at 100 kHz offset frequency. The corresponding rms jitter amounts to 0.37 ps while the peak-to-peak jitter is as low as 1.66 ps. At a single supply voltage of$-hbox4.8~V$ , the power consumption of the full CDR/DEMUX IC amounts to 1.65 W. To the authors' best knowledge, this work demonstrates the first CDR circuit at the achieved data rate, regardless of all the competing semiconductor technologies. 相似文献
16.
A high-speed dynamic reference single-ended ECL input-interface circuit has been fabricated for advanced ATM switching MCMs. To improve I/O pin number limits, the single-ended ECL circuit operates with a reference signal directly generated from the input signal itself. The reference level can change dynamically to achieve a larger noise margin for the input signal. Experimental results show that operation up to 3.4 Gbit/s with a large level margin can be attained 相似文献
17.
Yu J. Qian Y. Clausen A.T. Poulson H.N. Jeppesen P. Knudsen S.N. 《Electronics letters》2000,36(19):1633-1635
The authors present results showing that walkoff and dispersion effects are reduced when only 1 km HNL-DSF fibre is used in a nonlinear optical loop mirror (NOLM). Broadband and pulsewidth-maintained wavelength conversion at 40 Gbit/s based on a high-nonlinearity DSF-NOLM is obtained 相似文献
18.
Kamitsuna H. Yamane Y. Tokumitsu M. Sugahara H. Muraguchi M. 《Electronics letters》2005,41(9):532-534
A low-power 2/spl times/2 switch IC using InP HEMTs as cold FETs is presented. It has a logic-level-independent interface since no signal line is grounded. The IC yields low insertion loss of 1.5-2.7 dB and high isolation of >21.2 dB below 30 GHz. When two 40 Gbit/s signals were input, error-free operation was confirmed with virtually zero power dissipation. 相似文献
19.
WDM transmission experiment at 80 Gbit/s (8×10 Gbit/s, 0.8 nm channel spacing) over 1171 km of standard singlemode fibre has been performed with a 90.1 km recirculating loop incorporating a dispersion compensation fibre and gain-equalising optical bandpass filters 相似文献
20.
80 Gbit/s wavelength conversion using MQW electroabsorption modulator in delayed-interferometric configuration 总被引:1,自引:0,他引:1
Absorption recovery time and cross-phase modulation characteristics of an MQW electroabsorption modulator (EAM) were experimentally analysed. 80 Gbit/s error-free operation of a wavelength converter using the MQW EAM in a delayed-interferometer configuration was demonstrated for the first time. 相似文献