  We describe a high-power, frequency-tunable, external cavity diode laser
(ECDL) system near 626 nm useful for laser cooling of trapped $^9$Be$^+$ ions.
A commercial single-mode laser diode with rated power output of 170 mW at 635
nm is cooled to $\approx - 31$ C, and a single longitudinal mode is selected
via the Littrow configuration. In our setup, involving multiple stages of
thermoelectric cooling, we are able to obtain $\approx$130 mW near 626 nm,
sufficient for efficient frequency doubling to the required Doppler cooling
wavelengths near 313 nm in ionized Beryllium. In order to improve nonlinear
frequency conversion efficiency, we achieve larger useful power via injection
locking of a slave laser. In this way the entirety of the slave output power is
available for frequency doubling, while analysis may be performed on the master
output. We believe that this simple laser system addresses a key need in the
ion trapping community and dramatically reduces the cost and complexity
associated with Beryllium ion trapping experiments.
