While FAOMs offer numerous advantages, there are also some limitations to consider:

• Temperature Sensitivity: The performance of FAOMs can be susceptible to temperature fluctuations. Changes in temperature can alter the interaction between the acoustic waves and the light signal, impacting modulation efficiency. This necessitates careful consideration of the operating environment and potentially implementing temperature control measures to ensure consistent performance.

• Driving Electronics Complexity: Driving FAOMs requires specialized electronics to generate the acoustic waves for modulation. These electronics can be intricate and necessitate meticulous design to deliver the precise electrical signal characteristics (frequency, power) needed for optimal performance.

• Cost Factor: Depending on the specific features and desired performance parameters, FAOMs can be more expensive compared to some simpler light modulation techniques. This cost factor can be a consideration, particularly for budget-sensitive applications.