B BVCXZAQ1 New member Joined Aug 10, 2021 Messages 1 Aug 10, 2021 #1 How can I achieve a 6 millimeters laser spot focusing a 5 mw 950nm laser diode at 100 meters ?
RedCowboy 0 LPF Site Supporter Joined Jul 10, 2015 Messages 11,964 Aug 11, 2021 #2 Use a beam expander like this.
WizardG 0 LPF Site Supporter Joined May 9, 2011 Messages 1,226 Aug 11, 2021 #3 And starting with a single mode laser makes things easier. Not easy, but easier.
