Optical–Optical Synchronization Between Two Independent Femtosecond Yb-Fiber Lasers With 10 –20 Instability in 105 s

Autor: Haochen Tian, Youjian Song, Jiahe Yu, Haosen Shi, Minglie Hu
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: IEEE Photonics Journal, Vol 9, Iss 5, Pp 1-7 (2017)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2017.2756909
Popis: Optical–optical synchronization between independent mode-locked lasers with attosecond timing precision is essential for arbitrary electric-field waveform generation, subcycle optical pulse synthesis, optical frequency transfer as well as next-generation photon-science facilities, e.g., X-ray free-electron lasers. Long-term stable operation with low timing drift is highly desired for all above applications. Here, we present a five-day uninterrupted timing synchronization between two independent femtosecond Yb-fiber lasers via balanced optical correlation method. The out-of-loop residual timing drift over the entire time frame reaches 733 as rms, corresponding to $1.36\times 10^{{\rm -20}}$ instability at $1.31\times 10^{{\rm 5}}{\rm{\,s}}$. To the best of our knowledge, it is the first characterization of 105 s instability for subfemtosecond optical–optical synchronization based on mode-locked lasers.
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