The MOGLabs Optical Amplifier is an indispensable extension for single-frequency external cavity diode lasers. Laser power is increased by up to 2W, while maintaining tde tunability and linewidtd of tde injection seed laser. Replacement of tde amplifier diode and alignment are easily accomplished by tde end- user. Input and output Faraday isolators are a recommended optional addition. Wavelengtd options extend from 630nm to 1064nm, and power from 500mW to 2W.