科研之友
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摘要
A wide bandwidth tunable optical low-frequency shifter is presented in this work. It is based on two acousto-optic devices operating in tandem. The relevant parameters of the specific configurations of acousto-optic interactions in paratellurite material are detailed. Results from numerical computations leading to the practical design parameters are given. The low-frequency shifter has been experimentally tested at a visible wavelength lambda(0) = 514 nm and a high efficiency (%26gt;60%) has been measured. The tuning capability of the optical shifter covers a bandwidth Delta f = 26 MHz.
- 出版日期2013-11-20
