Abstract
One can determine the acoustic profile of an acousto-optic tunable filter (AOTF) either by measuring the intensity of a laser diffracted off the surface of an AOTF by the surface acoustic wave (SAW) or by measuring the optical output power of an AOTF as a short burst of rf energy is launched down the device. This rf-burst technique (also called pulse probing) is compared with the established optical diffraction SAW profilometry technique. We demonstrate the usefulness of rf-burst profilometry to measure the acousto-optic coupling as a function of position along an AOTF interaction region. Such a probe can be used to make adjustments to the acousto-optic coupling in real time to achieve passband shape modification in complex AOTF structures.
© 1996 Optical Society of America
Full Article | PDF ArticleMore Like This
D. R. Suhre and J. G. Theodore
Appl. Opt. 35(22) 4494-4501 (1996)
Kwang Jo Lee, In-Kag Hwang, Hyun Chul Park, and Byoung Yoon Kim
Opt. Express 18(12) 12059-12064 (2010)
M. E. Fermann, V. da Silva, D. A. Smith, Y. Silberberg, and A. M. Weiner
Opt. Lett. 18(18) 1505-1507 (1993)