Fabrication of a digitized real-time interferometric autocorrelator

Cheon Min Kim; Choon-Sup Yoon; Jung Chul Seo; Dongho Kim

doi:10.1117/12.209618

30 May 1995 Fabrication of a digitized real-time interferometric autocorrelator

Cheon Min Kim, Choon-Sup Yoon, Jung Chul Seo, Dongho Kim

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209618
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

A real time interferometric autocorrelator was fabricated for characterizing the pulse width and the phase distribution of ultrashort laser pulses. A data acquisition system based on the direct memory access (DMA) was devised in order to monitor the real time autocorelation trace. The system is capable of measuring not only the intensity distribution but also the phase distribution of optical pulses. The output pulses of a femtosecond Ti:sapphire laser were analyzed utilizing the system. Applications were made to demonstrate the characterization of the nonlinear optical processes in KDP and (beta) - BBO crystals. In a (beta) -BBO crystal, the phase mismatch effect was successfully identified and measured in the second harmonic generation (SHG) processes.

Citation Download Citation

Cheon Min Kim, Choon-Sup Yoon, Jung Chul Seo, and Dongho Kim "Fabrication of a digitized real-time interferometric autocorrelator", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209618

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