This laser driver, ATLS6A214, is an electronic module that has all the valuable and important, but often difficult to achieve simultaneously, features simultaneously: wide input and output voltage range, high output current capability, high efficiency, low output noise (but it has an output 4mVpp ripple voltage at 500kHZ), wide modulation bandwidth, and small size.
Product page: http://www.analogtechnologies.com/atls6a214.html
