We present details of the construction and performance of an optomechanical amplitude modulator. The heart of the modulator is an oscillating small mirror which makes it a low-power low-voltage device. The modulation frequency is fixed, but, in our model, it can be changed from 10 to 20 kHz by simple adjustments, and the modulator has high transmission. Because it is an all-reflective device, it is achromatic with respect to modulation depth. Calculations for uniform and Gaussian beams are compared to experimental results obtained with He–Ne and CO2 lasers. The results are similar to those achievable with other types of modulator.
© 1986 Optical Society of America
Original Manuscript: December 23, 1985
Published: June 15, 1986
Denis Vincent, "Achromatic optomechanical modulator," Appl. Opt. 25, 1982-1990 (1986)