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  1. S

    LuckLaser.com & BigLasers.com (The fine line between fraud and legit)

    Come on, guys. We ORDERED a lab laser (671nm Red DPSS Laser System | BigLasers.com), and asked Colin for their spec on coherence lenght. He replied it was 50cm, which is not unreasonable for this class of lasers and the price. What we got was a laser with <1mm coherence length, which in this...
  2. S

    LuckLaser.com & BigLasers.com (The fine line between fraud and legit)

    We bought a $5K laser from BigLaser.com to do interferometry. Prior to purchase Colin (who is the only live body manning this China drop-ship scam enterprise from time to time) claimed 50cm coherence length, sent us specs and all. What we got was barely 1mm. This is like claimng a color TV, then...


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