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Multi-wavelength selective crossbar switch
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DOI：10.1364/OE.27.005203.png)
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Here we demonstrate an 8x4 multi-wavelength selective ring resonator based crossbar switch matrix implemented in a 220-nm silicon photonics foundry for interconnecting electronic packet switches in scalable data centers. This switch design can dynamically assign up to two wavelength channels for any port-port connection, providing almost full connectivity with significant reduction in latency, cost and complexity. The switch unit cell insertion loss was measured at 0.8 dB, with an out-of-band rejection of 32 dB at 400 GHz channel separation. All the ring resonator heaters were thermally tuned, with heaters controlled by a custom 64-channel DAC driver. Detailed measurements on the whole switch showed standard deviation of 2 dB in losses across different paths, standard deviation of 0.33 nm in resonant wavelength and standard deviation of 0.01 nm/mW in ring heater tuning efficiency. Data transmission experiments at 40 Gbps showed negligible penalty due to crosstalk paths through the switch. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keyword:
OPTICAL SWITCH
SPACE
RESONATORS
THROUGHPUT
SI
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
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引用论文
A scalable silicon photonic chip-scale optical switch for high performance computing systems.png)
OPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
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PREAI
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