| Autor: |
K. Habara, Y. Yamada, M. Tsukada, K. Yukimatsu, K. Sasayama, T. Matsunaga, Akira Misawa |
| Rok vydání: |
1998 |
| Předmět: |
|
| Zdroj: |
Journal of Lightwave Technology. 16:2202-2211 |
| ISSN: |
0733-8724 |
| DOI: |
10.1109/50.736586 |
| Popis: |
A rack-mounted prototype of a broadcast-and-select (B and S) photonic ATM switch is fabricated. This switch has an optical output buffer utilizing wavelength division multiplexed (WDM) signals. The WDM technology solves. The cell-collision problem in a broadcast-and-select network and leads to a simple network architecture and the broadcast/multicast function. The prototype can handle 10-Gb/s nonreturn-to-zero (NRZ) coded cells and 5-Gb/s Manchester-coded cells and has a switch size of four. In this prototype, the level and timing design are key issues. Cell-by-cell level fluctuation is overcome by minimizing the loss difference between the optical paths and adopting a differential receiver capable of auto-thresholding. The temperature control of delay lines was successful in maintaining the phase synchronization. Using these techniques, we are able to provide a WDM highway with a bit error rate of less than 10/sup -12/. Fundamental photonic ATM switching functions, such as optical buffering and fast wavelength-channel selection, are achieved. We show our experimental results and demonstrate the high performance and stable operation of a photonic ATM switch for use in high-speed optical switching systems as an interconnect switch for a modular ATM switch and an ATM cross-connect switch. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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