Well...45mm is wide....but....what is your exact optical set up ??? Throw a G2 Collimation lens on the LD....
Are you using any Cylindrical lenses for correction ???? I doubt it.... Details ??????
Without details.....I cannot conclude this LD is...or is not a POS !!! Fill us in !!! Please !!!
CDBEAM
Beam Axiom #1 ~The Quantum well is DEEP ! Photons for ALL !!
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Beam Axiom #2 ~Yes...As a matter of fact...I DO wear tinfoil on my head !!
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Beam Axiom #3 ~Whe'n dout...Po ah Donk awn et !!
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Beam Axiom #4 ~A Chicken in every Pot, and a Laser Lumia in every Livingroom !!
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Beam Axiom #5 ~"Abstract Photonic Expressionism"....is "Abstractonimical" !!
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Beam Axiom #6 ~ "A Posse ad Essea" ~ From being possible to being actual ...is the beam target !