Here's one that's really, really old. This RCA type TA2628R GaAs laser was made in February of 1969 according to the data sheet in the box. Looking through old publications, I found the "new product introduction" for it in The Laser Newsletter of December 1966, and the ad below in Laser Focus the following month. It had an output of 4.0 W peak power at 905 nm, and operated at 9 v at 27 C. Its maximum pulse width was 0.2 us, and maximum duty cycle was 0.1%. Running them CW meant using liquid nitrogen to get to 77K.