In this paper, we propose a MAC protocol for a passive optical network (PON) employing wavelength-division multiplexing (WDM) with arrayed-waveguide gratings (AWGs) performing routing functionality at the remote node. In proposed MAC protocol, we employ a Request/Permit based MAC protocol using multipoint control protocol (MPCP). It is simulated using OPNET and their performances are evaluated ...

In order to support the continuous growth of transmission capacity demand, optical packet switching technology is emerging as a strong candidate, promising to allow fast dynamic allocation of wavelength-division multiplexing (channels, combined with a high degree of statistical resource sharing). This work addresses the design of optical switch architectures, based on previous proposals availab...

We proposed and designed novel arrayed-waveguide gratings (AWGs) for time-to-space (T-S) conversion-based high-speed optical signal processing. Recently, the frequency selectivity of AWGs has been considerably improved, offering the possibility of powerful tool for the manipulation of optical spectra. An arrayed-waveguide grating was fabricated, integrated with a 90 degree deflecting mirror. Mo...

A novel technique to interrogate a long-period grating (LPG) using a mechanically scannable arrayed waveguide grating (AWG) is proposed. This technique is implemented based on space-to-wavelength mapping by mechanically scanning the input light beam along the input coupler facet of an AWG. By employing a sampled chirped fiber Bragg grating with multiple peaks as a reference, the central wavelen...

Stuart D. Walker University of Essex, Department of Electronic Systems Engineering, Wivenhoe Park, Colchester, Essex, CO4 3SQ, UK, Tel: +44 1206 872413, Fax: +44 1206 872900, Email: [email protected] Abstract We have identified a comprehensive isomorphism between arrayed-waveguide grating (AWG), fibre Bragg grating (FBG) and photonic crystal (PC) devices, which allows the design characteristic...

We show that spatial phase dislocations can be generated in femtosecond laser beams by computergenerated holograms provided they are build in a setup compensating for the introduced spatial dispersion of the broad spectrum. We present analytical results describing two possible arrangements dispersionless 4f -setup and double-pass grating compressor. Experimental results on the generation of opt...

We propose a scalable all-optical switching architecture towards contention-free data center networking. The arrayed-waveguide-grating router (AWGR) based switching fabric utilizes wavelength parallelism to alleviate contention, to reduce latency, and to improve scalability. ©2010 Optical Society of America OCIS codes: (060.4250) Networks; (200.6715) Switching