Results 271 to 280 of about 4,419,608 (325)

Optical buffering and switching in packet switched optical networks

IEEE AFRICON. 6th Africon Conference in Africa,, 2003
Optical packet switching provides the advantages of transparency and the efficient use of the bandwidth provided by WDM on optical transport networks. There are however various impediments to deploying this technology in an all-optical fashion: optical buffering is inefficient, and all-optical signal processing has not been implemented in networks.
R. Geldenhuys, F. Leuschner
openaire   +1 more source

Technical specifications for an all-optical switch for information storage and processing systems

The European Physical Journal Plus, 2021
A. Rashed, Walid Fawzy Zaky, Hazem M. El-Hageen, A. Alatwi   +3 more
semanticscholar   +1 more source

Optical switching networks using tree‐structured waveguide optical switches

Electronics and Communications in Japan (Part I: Communications), 1987
AbstractTo make a large‐sized optical matrix is an important subject in realizing optical switching systems. Although optical matrices using waveguide optical switches have potential from the viewpoint of high speed and circuit integration, they are limited in the number of input/output terminals (up to between 4 and 8) due to the insertion loss and ...
Keishi Habara, Katsuaki Kikuchi
openaire   +1 more source

Optical switch for multimode optical-fiber systems

Optics Letters, 1979
A new type of optical switch is constructed of graded-index rod lenses. It is operated mechanically by small electromagnets. This switch is compatible with practical multimode-fiber communication systems. It has many outstanding features, such as low insertion loss (1.3–1.4 dB), low crosstalk ( 2 × 106 times), and small size (40 × 50 × 25 mm3).
M, Nunoshita, Y, Nomura, T, Matsui, T, Nakayama   +3 more
openaire   +2 more sources

Optical switching technologies for fast optical packet switching

Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551), 2003
A survey of optical switching technologies being candidates for an optical packet switched (OPS) network is presented. Switching time range for optical switching fabrics is found through analysis. In light of this, and based on reported switch devices, switching technologies are identified as candidates for OPS.
openaire   +1 more source

OPTICAL SWITCHING

2015
An optical switch (10) comprising: inputs (12) to receive input optical signals at respective wavelengths and having planar wavefronts; conversion apparatus (14) to convert each input optical signal into a respective optical signal having a respective helical wavefront, each helical wavefront having a different orbital angular momentum, OAM; optical ...
SCAFFARDI, MIRCO, ANDRIOLLI, Nicola, BOGONI, ANTONELLA, CERUTTI, Isabella, CASTOLDI, Piero   +4 more
openaire   +4 more sources

Packet switching or optical switching?

IEEE Internet Computing, 2000
One of history's main benefits is that it lets us detect trends that help predict the future. Over the past 30 years since the Internet started (1970-2000), many clear trends have emerged. The article very briefly examines the most critical of these trends, the one that led to the creation of the Internet: the packet switching cost trend.
openaire   +1 more source

Optical Switching Technologies and Switching in Optical Future Networks

2006 International Conference on Transparent Optical Networks, 2006
Compared with the large range of optical switching technologies that have been the subject of research, very few have been deployed on a significant scale in telecommunications networks. From an industrial and commercial viewpoint, this paper describes the current status of the more successful ones and relates them to their network applications and to ...
openaire   +1 more source

Integrated Optical Acousto-Optic Switching

SPIE Proceedings, 1985
Acousto-optic interactions are well known and widely used since long. The main applications for bulk optic devices are Bragg-cells for beam deflection and frequency shifting. Acousto-optic interactions using integrated otpical (I0) waveguides and surface acoustic waves (SAW) are very promising because of expected high efficiency.
openaire   +1 more source

Design of an Optical Switch and Sensor Based on a MIM Coupled Waveguide Using a DNA Composite

Journal of Electronic Materials, 2020
Maryam Bazgir, Majid Jalalpour, F. Zarrabi, Afsaneh Saee Arezoomand   +3 more
semanticscholar   +1 more source