Space-Division Optical Switches Based on Semiconductor Optical Amplifiers

Kalman, Robert F.; Kazovsky, L.G.; Goodman, Joseph W.

doi:10.21236/ada247616

Cited by 1 publication

(1 citation statement)

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“…For what concerns the scalability limit imposed by the OSNR degradation, since the losses of the AWG (around 3-4 dB) employed in the OCTL can be compensated by the amplification provided by the SOAs in the MZI-switches, the OSNR is expected to be reduced steeply after the first SOA-MZI switch, but after that, it degrades gradually. The calculation depends on the amplifier noise figure, the input optical power of the CW signals, and the gain of the amplifier [25]. As a reference, in a recirculation buffer containing four cascaded SOA [26] and with a totally compensated loop losses, an OSNR of 26 dB was measured after eight recirculation loops, which corresponds to 32 cascaded SOAs.…”

Section: Device Scalabilitymentioning

confidence: 99%

All-Optical Packet Switching and Label Rewriting for Data Packets Beyond 160 Gb/s

et al. 2010

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In this paper, two different paradigms to realize a scalable all-optical packet switch with label swapping will be reviewed. The two paradigms are based on wavelength routing switch and space routing switch. All the functions required for switching the packets, namely, the label processor, the label rewriter, and the optical switch, are based on alloptical signal processing with no electronic control. This allows for very fast processing time and potential photonic integration of the systems. We report, for both techniques, experimental results showing the routing operation of the 160-Gb/s packets and beyond. We will discuss and compare both techniques in terms of devices and bit-rate scalability, power consumption, power penalty performance, and cascadability as key parameters for the realization of an all-optical packet switch.

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Section: Device Scalabilitymentioning

confidence: 99%