title: High-power 894 nm monolithic distributed-feedback laser.
abstract: A ridge-waveguide InGaAs/GaAsP laser, emitting up to 250 mW in a single lateral and longitudinal mode at a wavelength of 894 nm, is presented. The distributed feedback is provided by a second order grating, formed into an InGaP/GaAs/InGaP multilayer structure. Owing to the stable lasing frequency, the large side mode suppression ratio (> 40 dB) and small spectral line width (< 200 kHz) the diode laser is well suited for caesium D1 spectroscopy. This was verified by the measurement of the hyperfine structure of the D1 line.
authors: A
authors: A
authors: Klehr
authors: H
authors: H
authors: Wenzel
authors: O
authors: O
authors: Brox
authors: F
authors: F
authors: Bugge
authors: G
authors: G
authors: Erbert
authors: T-P
authors: TP
authors: Nguyen
authors: G
authors: G
authors: Tränkle