A scheme for recording a fast process at nanosecond scale by using digital holographic interferometry with continuous wave laser

作者：Wang, Jun; Zhao, Jianlin^*; Di, Jianglei; Jiang, Biqiang

来源：Optics and Lasers in Engineering, 2015, 67: 17-21.

DOI：10.1016/j.optlaseng.2014.10.008

• Digital holographic interferometry
• Fast process at nanosecond
• Acousto-optical modulator
• Angular multiplexing technique

A scheme for recording fast process at nanosecond scale by using digital holographic interferometry with continuous wave (CW) laser is described and demonstrated experimentally, which employs delayed-time fibers and angular multiplexing technique and can realize the variable temporal resolution at nanosecond scale and different measured depths of object field at certain temporal resolution. The actual delay-time is controlled by two delayed-time fibers with different lengths. The object field information in two different states can be simultaneously recorded in a composite hologram. This scheme is also suitable for recording fast process at picosecond scale, by using an electro-optic modulator.

• 出版日期2015-4
• 单位西北工业大学