The first order beam is normally used for most applications. The intensity of the first order light is controlled by the amplitude of the RF signal. Either digital (on-off) or analog (video) AO modulation of the first order spot can be produced, depending on the type of driver selected.

For detailed information on AO Modulators, we refer you to the pdf below.

These AO deflectors allow full electronic control of spot position, with no moving parts, for linear scan and random access. With certain limitations, two AO deflectors may be mounted orthogonally to provide XY (dual-axis) capability.

Their extensive experience with AO devices and in-house crystal growth, fabrication, vacuum bonding, and anti-reflection coating capability allows them to quickly fabricate custom devices. They will choose the appropriate AO Q-switch configuration (i.e. acousto-optic material, Brewster or AR-coated ends, etc.) to meet customer specifications. BFi OPTiLAS interacts directly with the customer to ensure the device will meet his/her requirements. AO Q-switches are typically used in cw-pumped (both diode and lamp) solid state lasers to produce output at a pulse repetition frequency of 0.5 to >50 kHz. When RF is applied (top), the cavity loss rises due to diffraction produced by the AO Q-switch and the population inversion in the laser medium increases. As long as the loss exceeds the gain produced by the laser medium, laser emission will be inhibited. After the RF is switched off (bottom), the cavity loss drops and a laser pulse is emitted. By periodically turning the RF on and off, a pulse train is emitted.

For detailed information on AO Q-Switches we refer you to the pdf below.

Compared to conventional techniques, AOTFs offer continuous and agile tunability, fast access times and narrow spectral bandwidths, making these filters ideal for a wide range of spectroscopy and remote sensing applications.

For detailed information on AO Tunable Filters and Filter Drivers, we refer you to the pdf below.