AR-TG-SRSI and FASI for broad spectral range few-cycle laser pulses characterization

Qi Kuang; Xiong Shen; Lihua Bai; Jun Liu

doi:10.1117/12.2602197

9 October 2021 AR-TG-SRSI and FASI for broad spectral range few-cycle laser pulses characterization

Qi Kuang, Xiong Shen, Lihua Bai, Jun Liu

Proceedings Volume 11890, Advanced Lasers, High-Power Lasers, and Applications XII; 1189016 (2021) https://doi.org/10.1117/12.2602197
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Conference Poster

Abstract

Full characterization of few-cycle laser pulses is necessary for laser application. FROG is one of the most widely used full characterization techniques so far, and SRSI is another fresh one with attractive capacity. An all-reflective transient-grating based self-referenced spectral interferometry (AR-TG-SRSI) method is proposed for the single-shot characterization of few-cycle near Fourier transform-limited (FTL) laser pulses with a spectral range from UV to mid-IR. What’s more, a simple device FASI is built, which combines the FROG method and the SRSI method based on the same third-order TG effect in a single device. Pulses centered at 800 nm and 1800 nm were characterized by these two devices to verify their capacity. The two devices can characterize few-cycle pulses with a broad spectral range. And can characterize pulse by using the SRSI mode for well-compressed pulses. While, for complete pulses that own large chirp, the TG-FROG mode of the FASI device can also do the work.

Citation Download Citation

Qi Kuang, Xiong Shen, Lihua Bai, and Jun Liu "AR-TG-SRSI and FASI for broad spectral range few-cycle laser pulses characterization", Proc. SPIE 11890, Advanced Lasers, High-Power Lasers, and Applications XII, 1189016 (9 October 2021); https://doi.org/10.1117/12.2602197

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