All-optical network subsystems using integrated SOA-based optical gates and flip-flops for label-swapped networks

Abstract

Avramopoulos, H. (2006). All-optical network subsystems using integrated SOA-based optical gates and flip-flops for labelswapped networks. IEEE Photonics Technology Letters, 18(16) Please check the document version of this publication:• A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal.If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement: www.tue.nl/taverne Take down policy If you believe that this document breaches copyright please contact us at: openaccess@tue.nl providing details and we will investigate your claim. Abstract-In this letter, we demonstrate that all-optical network subsystems, offering intelligence in the optical layer, can be constructed by functional integration of integrated all-optical logic gates and flip-flops. In this context, we show 10-Gb/s all-optical 2-bit label address recognition by interconnecting two optical gates that perform XOR operation on incoming optical labels. We also demonstrate 40-Gb/s all-optical wavelength-switching through an optically controlled wavelength converter, consisting of an integrated flip-flop prototype device driven by an integrated optical gate. The system-level advantages of these all-optical subsystems combined with their realization with compact integrated devices, suggest that they are strong candidates for future packet/label switched optical networks. IndexTerms-Address recognition, Mach-Zehnder interferometer (MZI), optical flip-flop, optical label swapping (OLS), packet switching, semiconductor optical amplifier (SOA), wavelength conversion.

An adaptive stepsize controlled solver for the dynamic WDM semiconductor optical amplifier response

“…In this effort, Semiconductor Optical Amplifiers (SOAs) constitute key-signal processing elements due to their proven credentials of high-speed all-optical switching and enhanced maturity level [2], to the point where a plethora of commercial devices are already available. Exhibiting characteristics of large optical gain, non-linear phenomena, fast response and ease of integration with other functional semiconductor devices, SOAs have been a powerful generic building block extensively deployed in a wealth of telecom [9], [10] and datacom applications [11], [12], while recently are being applied in highspeed multi-wavelength all optical Random Access Memory (RAM) cells [13], [14] and RAM bank architectures [15]. Building-up SOA-based circuits of increased complexity with multiple recirculating Wavelength Division Multiplexed (WDM) signals necessitates also efficient yet accurate time-dependent SOA models supporting large input patterns for statistical signal analysis and system level evaluation.…”

Photonic Combinatorial Network for Contention Management in 160 Gb/s-Interconnection Networks Based on All-Optical 2$\,\times\,$2 Switching Elements

“…Moreover, several research efforts have been undertaken in order to demonstrate the suitability of new schemes for the realization of optical logic gates [21], [22]. Few examples of the simple cascade of two logic gates have been demonstrated [23], [24], while the design and the implementation of more complex digital circuits involving cascades of several logic functions have not been addressed yet.…”

Flip-flops ópticos basados en interferómetros Mach-Zehnder activos con realimentación

“…Esta técnica utiliza una lógica inversa en la comparación de las etiquetas y las direcciones de referencia (se obtiene señal de control cuando las secuencias de datos comparadas son distintas). En cambio, otras técnicas que se basan en correladores [Mar04,Keh06b] utilizan lógica positiva (si coinciden todos los bits de las secuencias comparadas se genera una señal de control). En el primer caso es suficiente con detectar un bit diferente entre las dos secuencias, mientras en el segundo se necesita comparar bit a bit, es decir, se requiere una XOR con realimentación o colocar en cascada tantas XORs como bits tienen las secuencias a comparar.…”