tron_ccp

Hello everyone, this is my first post and the reason I joined. I have a semiconductor laser from Thorlabs https://www.thorlabs.com/thorproduct.cfm?partnumber=LDM635 Which has a transverse mode that's not ideal for my application. I need a beam profile as close to a tem00 free of aberrations, and I get what's usual with laser diodes, which is an elliptical mode. I would like your opinions regarding which is the best (simple, cheap, optimal) way to circularize an elliptical beam. Thanks in advance for your time and apologies if this is the wrong forum, I couldn't find anything labeled "optics", "laser" or "lab gear".