title: Increasing the output of a Littman-type laser by use of an intracavity Faraday rotator.
abstract: We present a method of external-cavity diode-laser grating stabilization that combines the high output power of the Littrow design with the fixed output pointing of the Littman-Metcalf design. Our new approach utilizes a Faraday-effect optical isolator inside the external cavity. Experimental testing and a model that describes the tuning range and optimal tuning parameters of the laser are described. Preliminary testing of this design has resulted in a short-term linewidth of 360 KHz and a side-mode suppression of 37 dB. The laser tunes mode hop free over 7 GHz, and we predict that much larger tuning ranges are possible.
authors.affiliation: Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA.
authors.forename: Rebecca
authors.initials: R
authors.lastname: Merrill
authors.forename: Rebecca
authors.initials: R
authors.lastname: Olson
authors.forename: Scott
authors.initials: S
authors.lastname: Bergeson
authors.forename: Dallin S
authors.initials: DS
authors.lastname: Durfee