Although the importance of the impedance matching and cavity tuning
has been already found and discussed in medicine for microwave exposure to biological tissue  (at, obviously, a low temperature), those aspects are rarely evoked in hightemperature microwave processes.
The field of piezo motion devices for laser applications has expanded rapidly in recent years and today's optical engineers have a wealth of different piezo technologies at their disposal, from small piezo stacks for cavity tuning
to tip/tilt platforms and long travel motors with high dynamics and precision.
The system includes options such as PZT cavity tuning
, variable output power, external modulation input and an internal pointer.