[17a-A33-1~11] FS.1 Focused Session "AI Electronics"

9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)

[17a-A33-1] High Fidelity Programmable Photonic Unitary Processor and Its Application to Signal Processing in Long-Haul Space-Division-Multiplexed Transmission

〇Mitsumasa Nakajima¹, Kohki Shibahara², Kohei Ikeda³, Akira Kawai², Takayuki Kobayashi², Yutaka Miyamoto², Toshikazu Hashimoto¹ (1.NTT DTL, 2.NTT NIL, 3.NTT BRL)

Keywords:

Optical computing,Analog computing,Fiber transmission

Programmable photonic unitary circuits, which can execute matrix multiplication on optical domain, have gathered much atention due to their potential for ultrafast and energy efficient computing beyond their electric counter part. One remarkable use-case of photonic processor is signal processor for optical communication to reduce the load of the digital electrical hardware. Here, we show the high fidelity photonic unitary circuits and its application to space-division-multiplexed long-haul fiber transmission. We could achieve 1331-km three-mode transmission with reducing the equalizer length in the DSP by 60%.