PMID- 33379663
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201231
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 28
IP  - 24
DP  - 2020 Nov 23
TI  - Simultaneous measurement of the absolute and relative time delay of a 
      tiled-aperture coherent beam combination via the double-humped spectral beam 
      interferometry.
PG  - 35498-35505
LID - 10.1364/OE.405430 [doi]
AB  - Coherent beam combination (CBC) is a promising technology for achieving several 
      hundred petawatts and even EW-level lasers. However, the measurement of the 
      synchronization error and the time jitter of CBC is one of key technical issues, 
      especially in the few-cycle PW-level laser facilities. In this paper, we 
      demonstrate that the absolute time delay (ATD) and the relative time delay (RTD) 
      for a tiled-aperture CBC can simultaneously be measured by using the 
      double-humped spectral beam interferometry. The experimental study also was 
      demonstrated. A root-mean-square deviation of approximately lambda/38 (70 as) and a 
      combining efficiency of 87.3% at 1 Hz closed feedback loop was obtained, 
      respectively. Due to the wide adjustment range and a vast resisting beam energy 
      disturbance capacity, this technique provide an effective and practical solution 
      for measuring simultaneously the ATD and the RTD in the few-cycle PW-level laser 
      pulses CBC.
FAU - Liu, Keyang
AU  - Liu K
FAU - Song, Liwei
AU  - Song L
FAU - Liu, Yanqi
AU  - Liu Y
FAU - Wang, Xinliang
AU  - Wang X
FAU - Huang, Zhiyuan
AU  - Huang Z
FAU - Tang, Yunhai
AU  - Tang Y
FAU - Wang, Xiaobin
AU  - Wang X
FAU - Liu, Zhengzheng
AU  - Liu Z
FAU - Leng, Yuxin
AU  - Leng Y
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
SB  - IM
EDAT- 2021/01/01 06:00
MHDA- 2021/01/01 06:01
CRDT- 2020/12/31 01:04
PHST- 2020/12/31 01:04 [entrez]
PHST- 2021/01/01 06:00 [pubmed]
PHST- 2021/01/01 06:01 [medline]
AID - 442490 [pii]
AID - 10.1364/OE.405430 [doi]
PST - ppublish
SO  - Opt Express. 2020 Nov 23;28(24):35498-35505. doi: 10.1364/OE.405430.