By Jack B. Terry (auth.), George A. Lampropoulos, Jacek Chrostowski, Raymond M. Measures (eds.)

In this publication we current a photo of the cutting-edge in photonics in 1994, displaying ordinary functions and rising new ones; discussing the most important applied sciences in the back of those purposes, their boundaries, and clients. The articles during this booklet are prolonged types of the papers provided on the first foreign convention on functions ofPhotonic expertise (ICAPT'94), held in Toronto, Canada, on June 21-23, 1994. Photonics has been well-known as one of many key applied sciences for the 21 st century, as electronics was once the expertise of the 20 th centrury and electric engineering replaced the lifetime of humans within the nineteenth century. in keeping with the hot document of the association for financial Cooperation and improvement in Paris (OECD), the marketplace for photonics will develop dramatically within the subsequent 10 years with an anticipated world-wide expenditure people $230 billion from a few US $30 billion in 1992. The explosion of data know-how used to be the biggest driver for the deployment of photonic expertise. It created insatiable call for for ever-higher information transmission and processing premiums, which can't be sustained via electronics on my own. Boosted by way of the enonnous funding of the telecommunications and security industries, the call for for photonics (or optoelectronics) is progressively expanding. it's solidly demonstrated within the lengthy­ haul communications, laser printers and CD-ROMs.

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_'b~ 3 ...... MRE·NVC MAE 12 -o-NVC. llne 10-:40 . t! 11550 nm o ~ ~. ""R'*).. - 2 - 10-:35 11'3 km .......... RE ·HVC -Q-NVC· M"E -0- a_Hlln. -33 ·31 ),;1 ~t1 -29 -27 -25 Rece ived Power [dBm] Fig. 3b - Measured BER results for 1550 nrn channel 22 practices on the adding/dropping a signal to/from the high-speed OC-12 at local and remote sites. In the following, we describe a few system experiments and network demonstrations conducted on the BRN which demonstrates the potential and flexibility of the network using SONET technologies and architectures: 1.

The channel controllers are co-located and communicate control information over a low-speed parallel backplane. The DCCN design had two potential system limitations however. The first is an optical power budget limit and the second is a performance limit due to a limited number of wavelengths. EDCCN addresses these limitations through the use of a two level hierarchy which incorporates wavelength spatial reuse. LON Figure 1. EDCCN Physical Architecture Figure 1 illustrates the physical topology.

Multi-point video conferencing has successfully demonstrated the feasibility of sending audio, video and data over OCRlnet when the network is operating near the maximum data rate. Under certain overload conditions on the network some delays have been observed which are related to the both the ATM network configuration and the application. At two recent trade shows in Ottawa, OCRlnet members were connected to the trade show sites, enabling multi-point communication between the various locations and the trade show.

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