Development of a High-Speed Laser Interferometer Using an Acousto-Optic Deflector

Tetsuo Fukuchi, Takuya Nayuki, Koshichi Nemoto, Kiichiro Uchino

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

An acousto-optic laser deflector was used as a shutter for high-speed imaging of laser interference fringes using an ordinary CCD camera. The exposure duration was set by the pulse width of the high frequency signal applied to the acousto-optic deflector. Changes in laser interference fringes due to an impulse discharge in air were obtained at an exposure duration of 4 µs. By applying a sequence of high frequency signals with different frequency, the beam was deflected to four different angles at different times, allowing four interference images to be captured on a single video frame. This was used for time-resolved imaging of the interference fringe pattern.

Original languageEnglish
Pages (from-to)1531-1536
Number of pages6
JournalIEEJ Transactions on Electronics, Information and Systems
Volume123
Issue number9
DOIs
Publication statusPublished - Jan 2003

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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