Abstract:We investigate frequency-switching coherent reception (FSCR), a hardware-efficient technique for offline coherent optical signal characterization in laboratory environments, enabling bandwidth extension without costly and hardware-intensive parallel receiver architectures. By combining signal gating and local-oscillator frequency switching, FSCR captures multiple spectral slices sequentially using a single receiver front-end and oscilloscope. We experimentally demonstrate characterization of signals at symbol rates up to 288 GBaud beyond the receiver bandwidth limit.
From: Hiroshi Yamazaki [view email]
[v1]
Thu, 2 Apr 2026 05:01:48 UTC (673 KB)
[v2]
Fri, 31 Jul 2026 09:06:00 UTC (1,267 KB)
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