title: Efficiency enhancements for Fabry-Perots used in velocimetry.
abstract: This Letter discusses the premise that using a Fabry- Perot for velocity measurements wastes most of the energy arriving at the input mirror and suggests a way to use more of the energy.
authors.forename: C F
authors.initials: CF
authors.lastname: McMillan
authors.forename: N L
authors.initials: NL
authors.lastname: Parker
authors.forename: D R
authors.initials: DR
authors.lastname: Goosman