title: Portable high-resolution laser monochromator-interferometer with multichannel electronic readout.
abstract: A high-resolution 0.4-m monochromator is described for use in wavelength diagnosis of tunable pulsed and cw laser sources in the 3000-10000-A region. The f/20 design uses an echelle grating in an over-andunder Ebert configuration with a scanned photodiode array to provide a real-time multichannel display of spectral output. Absolute wavelength may be determined to 0.1 A with the monochromator, and a Fabry- Perot interferometer attachment extends linewidth measurement capability to 0.01 A or better. Spectra are displayed on a storage oscilloscope, and calculation of laser parameters is explained. The instrument measures 70 cm long x 15 cm wide x 20 cm high.
authors.forename: M B
authors.initials: MB
authors.lastname: Morris
authors.forename: T J
authors.initials: TJ
authors.lastname: McLirath