نتایج جستجو برای: optical wavelength conversion

تعداد نتایج: 417016  

2005
Y. Liu E. Tangdiongga M. T. Hill J.H.C. van Zantvoort E. Smalbrugge T. de Vries H. Binsma

We demonstrate that 80 Gb/s data-packets can be all-optically switched into two different ports employing an optical wavelength converter controlled by a monolithically integrated optical flip-flop memory. The optical wavelength converter consists of a semiconductor optical amplifier and an optical filter. The integrated optical flip-flop exhibits single-mode operation, has 35 dB contrast ratio...

2003
Zhenghao Zhang Yuanyuan Yang

Optical communication is attracting more and more attentions because of its huge bandwidth to meet the ever increasing demand of emerging computing/networking applications. In this paper we study distributed scheduling algorithms to resolve output contentions in WDM optical interconnects with wavelength conversion ability. We consider the general case of limited range wavelength conversion, inc...

2006
J. Lambert B. Van Houdt C. Blondia

In this paper we present an algorithm, called the Wavelength before Time with Preventive Conversion (WTPC) algorithm, that aims at reducing the loss rate in an optical burst switched network. The algorithm resolves contention in both the time and wavelength domain and uses a preventive conversion mechanism for some optical bursts that cause large voids. Without this mechanism our algorithm coin...

Journal: :IEICE Electronic Express 2008
Md. Rakib Uddin Jeong-Sik Cho Yong-Hyub Won

We demonstrate an all-optical single to multi-wavelength converter using gain modulation in a Fabry-Perot laser diode (FP-LD at 10Gb/s. It can simultaneously provide 1 to 4 output channels and support both up and down conversion. We observed over 14 dB extinction ration (ER) and power penalty of around 1.5 dBm at a BER of 10−9. The results ensure to increase the number of output channels. The p...

2000
Shun Yao Biswanath Mukherjee S. J. Ben Yoo Sudhir Dixit

This paper presents a comparative study of contention-resolution schemes based on wavelength, time, and space domains in an unslotted optical packet-switched network with a large irregular mesh topology consisted of 15 nodes. For the first time, to the best of our knowledge, we investigated the effect of selective deflection and limited wavelength conversion. Features and performances of differ...

Journal: :Optics express 2004
Hilmi Demir Vijit Sabnis Onur Fidaner James Harris David Miller Jun-Fei Zheng

We present a dual-diode, InGaAsP/InP quantum-well modulator that incorporates a monolithically-integrated, InGaAs photodiode as a part of its on-chip, InP optoelectronic circuit. We theoretically show that such a dual-diode modulator allows for wavelength conversion with 10-dB RF-extinction ratio using 7 mW absorbed optical power at 10 Gb/s. We experimentally demonstrate unlimited wavelength co...

2006
Haitham S. Hamza Jitender S. Deogun

This paper investigates the problem of designing scalable and cost-effective wavelength division multiplexing (WDM) optical interconnects. We propose a new design for WDM optical interconnect that has several advantages over existing designs. First, wavelength conversion occurs between two predefined wavelengths. This not only eliminates the need for expensive wide-range wavelength converters, ...

Journal: :IEEE Journal on Selected Areas in Communications 1998
Hiroaki Harai Masayuki Murata Hideo Miyahara

Previous analytic approaches for all-optical networks have only allowed a random wavelength assignment policy in spite of the fact that network performance can be improved by other wavelength assignment policies such as first-fit wavelength assignment. In this paper, we develop an approximate analytic method to allow flexible wavelength assignment policies by virtue of a layered-graph approach....

Journal: :Physical review letters 2013
Yuxiang Liu Marcelo Davanço Vladimir Aksyuk Kartik Srinivasan

We demonstrate optomechanically mediated electromagnetically induced transparency and wavelength conversion in silicon nitride (Si3N4) microdisk resonators. Fabricated devices support whispering gallery optical modes with a quality factor (Q) of 10(6), and radial breathing mechanical modes with a Q=10(4) and a resonance frequency of 625 MHz, so that the system is in the resolved sideband regime...

1998
Esa Hyytiä Jorma Virtamo

With wavelength division multiplexing (WDM) several optical signals can be transferred in a single optical ber [6][7]. This technology allows more e cient use of the huge capacity of an optical ber but also poses new network design and management problems, especially when wavelength conversion is not possible in the nodes. In this paper we consider the routing and wavelength assignment problem ...

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