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Thread: Laser-wave to CNI Compare Test

  1. #11
    Join Date
    Dec 2007
    Posts
    7

    Default

    Hi Phritzler,

    Where is the laserwave laser on this picture ?
    http://img91.imageshack.us/img91/1579/img0017jt2.jpg

    left or right ?

    Can you test the beam diameter at a determined distance, like 10m.
    And what is the beam diameter at the aperture ?

    thanks,
    Geo

  2. #12
    Join Date
    May 2007
    Location
    Austria/Vienna
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    308

    Default

    Quote Originally Posted by Radiums View Post
    Hi Phritzler,

    Where is the laserwave laser on this picture ?
    http://img91.imageshack.us/img91/1579/img0017jt2.jpg

    left or right ?

    Can you test the beam diameter at a determined distance, like 10m.
    And what is the beam diameter at the aperture ?

    thanks,
    Geo
    Hello!
    It is the right laser. The beam is on begin 3,2mm+corona
    After 10m it is ca. 11mm, so it has nice Divergence!!
    Thanks,
    Phil

  3. #13
    Join Date
    Dec 2007
    Posts
    7

    Default

    Humm

    Ok thank you...
    with your measurment the beam has a divergence of 0.8mrad...excellent
    It's really curious that there not annonce this performance on there website...

    Has someone test theirs 1W DPSS 532nm laser ?
    I will perhaps buy the 1W source and test it with my coherent instruments, i would say.

    But (i think it's an effect with the photo) the beam of the laserwave laser seems to be much larger than CNI laser at the aperture..is it right ?

  4. #14
    Join Date
    May 2007
    Location
    Austria/Vienna
    Posts
    308

    Default

    Hello!
    Yes, the CNI has ca. 1,5mm at begin , but after 10m it has 13mm.
    fG
    Phil

  5. #15
    Join Date
    Oct 2006
    Location
    Austria
    Posts
    60

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    Hi,

    i bought 2x 1W @ 532nm. Received it allready last saturday. I have to lend out a ophir laser powermeter, because my lasercheck only write "---" on the disply (means overload) :-)
    Allready tested it shortly last night. A friend of me is 7,2 km direct line away from me and he could see the beam very clear in the sky!!!

    I will make an exact test this week. But the laser is great.

    Best regards
    Karl

  6. #16
    Join Date
    Oct 2006
    Location
    Austria
    Posts
    60

    Default

    a small pic. sorry for bad quality.

    CW with no fog or smoke... daylight!
    Attached Thumbnails Attached Thumbnails Bild015.jpg  


  7. #17
    Join Date
    Dec 2007
    Posts
    7

    Default

    thank you !
    It's a good information fo me.

    So you have a powercheck coherent and with "---" the beam power is over the watt.
    When i will test this laser we will see the exactly the optical power (LM-10 PW) after some hours.

    I think the focus lenght is different, i prefer a large beam and smaller divergence, so the laserwave configuration seems good in comparison to CNI laser.

    stardbust,

    Can you tell me the beam diameter at the aperture and after 10m ?
    Just for calculate the real divergence. thank you

    Have you a project to couple the 2 beams with a polarization cube ?
    For this the beams need polarizing 100:1, i'm not sure that it's possible, perhaps when rotate one of the 2 beam at 90° with 2 mirrors and mix them with a cube.

    Best regards,
    Geo

  8. #18
    Join Date
    Oct 2006
    Location
    Austria
    Posts
    60

    Default

    Hi Geo,

    The beam diameter at the aperture is 2 mm. I haven`t measured the diameter at a varius distance, but i will do tonight.

    I build 2 projektors. Not a Single with 2W.
    I allready measured with a 50% beamsplitter. And that was 620 mW and the other 670 mW. So more then 1,2W both!!!

    All the best

  9. #19
    Join Date
    May 2007
    Location
    Milwaukee WI
    Posts
    1,355

    Default

    Quote Originally Posted by Radiums View Post
    with your measurment the beam has a divergence of 0.8mrad...excellent
    It's really curious that there not annonce this performance on there website...

    Has someone test theirs 1W DPSS 532nm laser ?
    I will perhaps buy the 1W source and test it with my coherent instruments, i would say.
    From my experience with dealing with Bridge and Laser-Wave they have been really modest, which is great for us. As far as I have seen everything they have provided has been over spec. I think from a business standpoint if they did increase the specs to that of the average unit they produce they would see more sales, but also as the components wear down they would fall under spec faster - thus more complaints etc.

    I think from their standpoint, saying that there is a 1.2mr divergence when it really is .8mr that is great! And a nice surprise for us but then again people might not purchase the product because of that... Personally I think the word of mouth in this case will let everyone know how good the product really is.

    Personally I have a 800mw that is performing at about 1 watt CW. Unfortunately I am not in the position to ship it out to have you run your tests on it. I am going to upgrade my meter soon, one with logging capabilites. That way I can get some much better information and hard data for everyone to see.

  10. #20
    Join Date
    Dec 2007
    Location
    Fuzhou
    Posts
    7

    Default cni laser

    I get cni laser-532nm 200mw for two years.
    but I do that for three month, the output power beginning reduce. later the laser unstability.
    Lasertec designs, grows, manufactures, and supplies the highest quality crystal and precision optics products, lenses, coatings for laser application
    sales@lcoptical.com www.lcoptical.com

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