A laser Doppler vibrometer (LDV) is described in which holographic optical elements are used to provide the interferometer reference and object illumination beams. A complementary metal-oxide semiconductor camera, incorporating a digital signal processor, is used to carry out real-time signal processing of the interferometer output to allow multipoint LDV to be implemented.
© 2008 Optical Society of America
Fourier Optics and Signal Processing
Original Manuscript: October 17, 2007
Manuscript Accepted: January 11, 2008
Published: February 8, 2008
Michael J. Connelly, Przemyslaw M. Szecówka, Raghavendra Jallapuram, Suzanne Martin, Vincent Toal, and Maurice P. Whelan, "Multipoint laser Doppler vibrometry using holographic optical elements and a CMOS digital camera," Opt. Lett. 33, 330-332 (2008)