title: Diode laser direct modulation heterodyne interferometer.
abstract: A new type of heterodyne interferometer was made through direct modulation of a diode laser wavelength. A measurement accuracy of better than lambda/50 and repeatability of lambda/100 were obtained. This interferometer shows promise for use in testing wavefront aberrations, especially in optical disk systems.
authors.forename: K
authors.initials: K
authors.lastname: Tatsuno
authors.forename: Y
authors.initials: Y
authors.lastname: Tsunoda