Single-shot detection time-stretched interferometer with attosecond precision

Xian, Tianhao; Zhan, Li; Zhang, Wenchao; Zhang, Wenyan; Gao, Lirun

doi:10.1364/ofc.2020.m1c.4

Cited by 1 publication

(2 citation statements)

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“…The analogy to diffraction propagation is implemented by large dispersion in DTI, after which the interference arises in time-domain and the interferogram can be captured by oscilloscope. This method was firstly proposed to monitor the time signal imposed on the paths, which can probe the time difference from attosecond to picosecond with sub-20as resolution 26 . Here, we introduce the DTI technique to mode-locked laser and employ it to capture the pulse-to-pulse and pulse-to-cavity-parameters interactions in ultrafast lasers.…”

Section: Resultsmentioning

confidence: 99%

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Time-resolved single-shot revealing pulse evolution dynamics in ultrafast lasers

Xian¹,

Wang²,

Zhan³

2021

Preprint

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Mode-locked lasers are the ideal source for precise measurements, from frequency combs to precise timing, which relies on the accurate control of the intracavity parameters in the lasers to stabilize the pulse. However, by the lack of accurate measurements, the interplays between intracavity parameters and the mode-locked pulse is still not real-time observable. Here, using the dispersive temporal interferometer, we report a method to single-shot probe the pulse evolution dynamics in time domain in the mode-locked laser. As a typical example, we demonstrate the first single-shot observation on the roundtrip time and phase evolutions of intracavity pulse during its buildup and relaxation. Three distinct evolution regimes for pulse buildup are unveiled for the first time. Moreover, the physical mechanism of the time-location and phase changes in these three regimes has also been analyzed, respectively. Our researches present a novel method to observe the intracavity-parameters-to-pulse interaction, which will improve laser design, ultrafast diagnostics, and nonlinear optics.

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Section: Resultsmentioning

confidence: 99%

“…, a typical feature of DTI-based time sensor 26 . The central fringe location reflects the relative phase 12  in Eq.…”

Section: Resultsmentioning

confidence: 99%

Time-resolved single-shot revealing pulse evolution dynamics in ultrafast lasers

Xian¹,

Wang²,

Zhan³

2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Single-shot detection time-stretched interferometer with attosecond precision

Abstract: A single-shot time-stretched interferometer for femtosecond and picosecond time detection is proposed and demonstrated. The time precision is ~40 attosecond. This technique succeeds in charactering the motion of delay-line and in fabricating vibrating sensor.

Cited by 1 publication

References 5 publications

Time-resolved single-shot revealing pulse evolution dynamics in ultrafast lasers

Time-resolved single-shot revealing pulse evolution dynamics in ultrafast lasers

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