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physics.optics2026
Hollow-Core Fiber for Long-Span Optical Frequency Transfer: Improved Instability and Extended Single-Span Reach
Qian Zhou, Ru Yuan, Xiang Zhang +12
Phase-coherent optical frequency transfer is essential for optical clock networking, relativistic geodesy, and distributed precision metrology. However, realizing coherent optical…
physics.optics2026
Design of Angular-offset Interstitial-Tube- Assisted Hollow-Core Fibers with Ultrahigh Mode Purity and Ultralow Loss
Hao Chen, Jiayi Chen, Dawei Ge +5
Antiresonant hollow-core fibres (AR-HCFs) have recently reached attenuation far below the Rayleigh-scattering limit of silica, but their inherently multimode nature remains a major…
physics.optics2025
1-Tb/s/λ Transmission over Record 10714-km AR-HCF
Dawei Ge, Siyuan Liu, Qiang Qiu +12
We present the first single-channel 1.001-Tb/s DP-36QAM-PCS recirculating transmission over 73 loops of 146.77-km ultra-low-loss & low-IMI DNANF-5 fiber, achieving a record transmi…