title: Laser-linewidth measurement with a Fizeau wavemeter.
abstract: It is shown theoretically and experimentally that a Fizeau wedge wavemeter typically used to measure laser wavelength can also be used to measure the linewidth of a pulsed or cw laser. Linewidths as small as a few hundred megahertz can be measured by choosing the thickness of the wedge properly.
authors.forename: C
authors.initials: C
authors.lastname: Reiser
authors.forename: P
authors.initials: P
authors.lastname: Esherick
authors.forename: R B
authors.initials: RB
authors.lastname: Lopert