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  1. R

    DTR BDR-209 405nm Laser Diode shows a blurry square light.

    Thanks I'll look into Spatial filtering and Edmund Optics will assure for quality control in expense for extra cost.
  2. R

    Pioneer 16X BDR-209DBK

    anyone knows who manufactures the laser diodes for pioneer 16x blu ray drives? I'm having problems with my BDR-209 405nm diodes, they give a bad beam profile. I want to buy some blu ray diodes but want to avoid at best from buying the actual expensive blu ray drives...
  3. R

    DTR BDR-209 405nm Laser Diode shows a blurry square light.

    That is true, but with white paper I can see the true beam profile for leaking artifacts. I'll be using this laser diode for exposing PCB photoresist material. Any hint of leakage of UV light will expose the UV sensitive material.
  4. R

    DTR BDR-209 405nm Laser Diode shows a blurry square light.

    That's the weird part, the laser modules was increasing the output while I increase it's current and voltage. It was extremely dumb bright lol. Wearing laser goggles was a must.
  5. R

    DTR BDR-209 405nm Laser Diode shows a blurry square light.

    Yeap thats true, laser diodes are really sensitive, best to under drive them. But wow they pop even under driven really sucks.
  6. R

    DTR BDR-209 405nm Laser Diode shows a blurry square light.

    DTR advertises them to go close to 900mw, but will damage the diode most likely: https://www.ebay.com/itm/900mW-405nm-Blu-Ray-BDR-209-Laser-Diode-In-Copper-Module-W-Leads-G-2-Glas-Lens/173770604774?hash=item28758900e6:g:aj8AAOSwf29cUpoc
  7. R

    DTR BDR-209 405nm Laser Diode shows a blurry square light.

    So I drove the laser at 5.2 volts and around 220mA, still the same results. You can't really see the box artifact because the iPhone 6S Plus camera sensor is too sensitive even behind laser googles, but you can still see the artifact around position 5 O'clock and 6 O'clock. It's really terrible...
  8. R

    DTR BDR-209 405nm Laser Diode shows a blurry square light.

    Thank You for the helpful tip.
  9. R

    DTR BDR-209 405nm Laser Diode shows a blurry square light.

    Hello guys, So I was finally able to power up the laser diode from DTR. I got two of these modules. It is a "900mW 405nm Blu-Ray BDR-209 Laser Diode In Copper Module W/Leads & G-2 Glas Lens": I have the IC-Haus IC-HKB-S08-TP laser driver chips but for testing purposes of the laser module...
  10. R

    DTR BDR-209 405nm Laser Diode Complete Datasheet?

    Yes, seems like the Sony's "Sld3237vf" diode is the one used by "BDR-209 405nm Blu Ray Drives". Here's the datasheet is anyone interested: https://datasheetspdf.com/pdf-file/905921/SonyCorporation/SLD3237VF/1
  11. R

    DTR BDR-209 405nm Laser Diode Complete Datasheet?

    Thanks will take look on that.
  12. R

    DTR BDR-209 405nm Laser Diode Complete Datasheet?

    I bought the DTR BDR-209 405nm Laser Diode with the G2 Lens from DTR store. I'm trying to find the datasheet for the BDR-209 405nm Laser Diode. I'm sure it should have one since it is a quality laser diode. The reason I ask is because I'm trying to find the beam quality M2 values for it. Thanks.
  13. R

    How to achieve 0.01mm laser spot size?

    So I ended up buying the famous 405nm "BDR-209" laser module with the G2 lens from "DTR" at eBay. Seems like Mr. "DTR" is a serious laser guy, with over 7K 5-stars at eBay, I gotta say thanks to Mr. "Giannis_TDM" and "Alien Laser" for providing such reputable laser source, I always seeks for the...
  14. R

    How to achieve 0.01mm laser spot size?

    https://www.nakulaser.com/index.php?main_page=product_info&products_id=142 Wow, this is a solid state module for around $100, not bad... But it can only outputs about 10mJ of energy... Which could be "doable" for exposing the photoresist, but will require for me to scan the surface for much...
  15. R

    How to achieve 0.01mm laser spot size?

    I remember from every other year to year always wanting to buy UV-A (315-400 nm), UV-B (280-315 nm) or UV-C (100-280 nm) lasers, but there's no such technology available in the market as of now. Where did you see a gas UV laser shorter than 405nm? I just went on eBay and couldn't find any...
  16. R

    How to achieve 0.01mm laser spot size?

    I think it would be better to use a laser with a shorter wavelength such as 300-355nm, the G2 lens will cause the laser beam to be much shorter focal point than using a 405nm laser. But not sure how much of a difference it would make...
  17. R

    How to achieve 0.01mm laser spot size?

    So you think it's better to have the Sony BDR laser to be expanded before or after the G2 lens?
  18. R

    How to achieve 0.01mm laser spot size?

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6066758/#:~:text=Compared%20with%20CD%2FDVD%20laser,imaging%20depending%20on%20the%20dose. Wow, interesting... here's a quote: "Compared with CD/DVD laser, the Blu-ray 405 nm laser has a focal point of approximately 250 nm, thus being suitable for...




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