2010/03/31 by Travis C Briles, Travis C. Briles, D. C. Yost +6 · 107 citations
Engineering · Physics and Astronomy · #Acoustics #Actuator #Advanced Fiber Laser Technologies #Advanced Frequency and Time Standards #Astronomical interferometer #Bandwidth (computing) #Computer science #Electrical engineering #Engineering #Frequency response #Interferometry #Materials science #Optics #Physics #Piezoelectricity #Servo #Servo bandwidth #Servo control #Solid State Laser Technologies #Telecommunications #Transducer #Transfer function #physics.optics
paper · pdf · open access · doi:10.1364/oe.18.009739
published in Optics Express 18(10), 9739 (Optica Publishing Group)
arxiv created 2010/03/31 · openalex publication_date 2010/04/26 · arxiv updated 2015/05/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present a high bandwidth piezoelectric-actuated mirror for length stabilization of an optical cavity. The actuator displays a transfer function with a flat amplitude response and greater than 135 masculine phase margin up to 200 kHz, allowing a 180 kHz unity gain frequency to be achieved in a closed servo loop. To the best of our knowledge, this actuator has achieved the largest servo bandwidth for a piezoelectric transducer (PZT). The actuator should be very useful in a wide variety of applications requiring precision control of optical lengths, including laser frequency stabilization, optical interferometers, and optical communications.