The PZ2 provides the most extensive stretch of our stretcher product family. It is a fiber wound piezoelectric element for use in a wide range of optical interferometric measurement and sensing system applications. Typical uses include open loop demodulation, sensor simulation, white-light scanning interferometry and large angle modulation of interferometric phase. The PZ2 is ideal for use in OCT [Optical Coherence Tomography] and OCDR [Optical Coherence Domain Reflectometry] applications requiring scattering or boundary definition measurements.