Chirped pulse line velocimetry (CPLV) as a new diagnostic tool

PDV is currently the most common velocimetry technique fielded in various dynamic compression experiments. However, PDV is inherently limited to a single point measurement and requires multiple probes and expensive scope channels to obtain spatially resolved information. Line VISAR has been used to detect velocimetry profiles along a continuous line on a surface, but due to complexity and sensitivity of this system it is usually paired only with large scale platforms like the Omega laser facility. Here we present a line velocimetry technique, named chirped pulse line velocimetry (CPLV), which stems from ultrafast laser applications. Taking advantage of the recent advances in fiber optics used by the telecom industry, we demonstrate a prototype system with chirped pulses extending up to 100 ns and open new diagnostic possibilities in laser compression experiments. Key factors of the system architecture are discussed, and a few implementation examples are presented.