For a project I need to make a custom laser driver for a dot green laser module.

Below and here 1 you can find my design, the laser I've using now is a PLT5 510 OSRAM, the VSYS is 3,7 V DC from a Li-Ion battery.

The optical power output measured with this set-up are around 1.5 mW, I need to increase the optical power output around 10 times more. I can adjust the feedback current changing the value of the resistors.

If I increase the optical power output, the temperature of the module increase a lot, 90 degrees instead 35 degrees in the normal use.

How can I make a good regulation of the current of the laser module, and get almost 10 mW of optical power output, with a less temperature in the module?

I've no idea if I can use PWM to drive the laser and how to make this regulation, because the laser has a Feeback PIN and I'm thinking about the PWM can affect to the normal and properly running of the laser module.

Please can anybody help me?

Thanks in advance!