Crosstalk reduction in multi-channel acousto-optic modulators

An acousto-optic modulator (AOM) system, the system comprising:

• a substrate with a plurality of radio-frequency (RF) antennas patterned on one side to form a plurality of channels of the AOM system and an RF absorber on the other side of the substrate, the substrate being configured to deflect one or more optical beams and shift a frequency of the one or more optical beams in a time-dependent manner;
• and
• a plurality of arbitrary waveform generators (AWGs), each of which is associated with a respective channel of the plurality of channels,
• wherein the plurality of AWGs are configured to:
• generate and apply a separate radio-frequency (RF) signal to each of a portion of channels of the plurality of channels to turn on the portion of channels, causing a combined crosstalk effect on at least one remaining channel of the plurality of channels that is not turned;
• and
• generate and apply a correcting RF signal to each of the at least one remaining channel to produce an acoustic wave that at least partially corrects for the combined crosstalk effect caused by the portion of the channels of the plurality of channels when the respective RF signal is applied thereto.

A quantum information processing (QIP) system, comprising:

• an acousto-optic modulator (AOM) having a plurality of channels;
• a plurality of arbitrary waveform generators (AWGs), each of which is associated with a respective channel of the plurality of channels;
• a trap having a plurality of trapped atomic-based elements;
• and
• an optical source configured to emit one or more optical beams to respective channels of the plurality of channels to change a state of a respective one of the plurality of trapped atomic-based elements to implement a quantum operation,
• wherein the plurality of AWGs are configured to:
• generate and apply a separate radio-frequency (RF) signal to each of a portion of channels of the plurality of channels to turn on the portion of channels, causing a combined crosstalk effect on at least one remaining channel of the plurality of channels that is not turned;
• and
• generate and apply a correcting RF signal to each of the at least one remaining channel that produces an acoustic wave that at least partially corrects for the combined crosstalk effect caused by the portion of the channels of the plurality of channels when the respective RF signal is applied thereto.