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Thread: Review Lasever DPSS 532nm 1W LSR532H

  1. #11
    Join Date
    May 2007
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    Austria/Vienna
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    Hello!
    "TTL 10kHz / Analogue 10kHz to 30kHz analogue"
    Its nice that a driver can do more thank 10kHz modulation, for a diode laser its no problem to reach this frequencies. But for DPSS Lasers there isnīt more than 10kHz needed - they canīt reach 30kHz itself from principe, and if, the power will be about a really small fraction of the normal power which the lasers has.
    Greets,
    Phil

  2. #12
    Join Date
    Jan 2010
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    Paris
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    43

    Default CNI / Lasever

    Quote Originally Posted by badger1666 View Post
    well i can asure you that laser was not made by lasever they just dont make anthing that powerful
    they do buy in cni oem moduals and tweek them a bit ask david i am sure he will tell you
    This thread have good picture of 1W CNI : http://www.photonlexicon.com/forums/...NI-bonus-gift-!

    * All aluminum parts are identical, but are not the same screws, and not the same aperture module ! -> it's not a genuine CNI head.

    * CNI dont sell this nice small 5V OEM Driver -> STFW not give any result....

    * Re-Matching a custom driver + custom screw + open the CNI head tu change aperture block + refill a neutral gaz + on a CNI head is not a good business for Lasever ! lol !!!

    * But they can buy aluminum parts from CNI or clone the head -> possible business !

    -> For me Lasever make this not expensive and nice laser...

    Edit : I have another proof that Lasever actually manufactures this laser head ! An genuine threaded aluminium optical with the infrared cutoff filter.
    Originally, Lasever mount this optical block inside the laser. But after many hour at this power, the filter no longer work. Lasever give the complete optical mount as external filter, because Laser is filled with neutral gaz and cannot be opened. Over 300mW this IRcut filter is deteriorating rapidly.

    Pascal
    Last edited by Serveurperso; 02-02-2010 at 02:36.
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  3. #13
    Join Date
    Nov 2005
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    Melbourne, Australia
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    I think they are all pretty weak arguments TBH!!

    There are a few different nose sections the CNI make, the one in your pictures looks the same as the CNI heads that I have sitting here!

    CNI are more than happy to sell the head only...

    Generally CNI dont include the IR filter on the higher power models unless asked to. And it is external like the one in your pictures...

    Discussions with CNI in the past have led to CNI admitting that Lasever indeed buy lasers off them, and possibly run them over spec..
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  4. #14
    Join Date
    Jan 2010
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    Paris
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    Quote Originally Posted by dave View Post
    I think they are all pretty weak arguments TBH!!

    There are a few different nose sections the CNI make, the one in your pictures looks the same as the CNI heads that I have sitting here!

    CNI are more than happy to sell the head only...

    Generally CNI dont include the IR filter on the higher power models unless asked to. And it is external like the one in your pictures...

    Discussions with CNI in the past have led to CNI admitting that Lasever indeed buy lasers off them, and possibly run them over spec..
    Do you have recent pictures of CNI head ?
    On Lasever head, all screws is not anodized.
    On CNI head, all screws is black anodized.

    They probably use the same industry standard box...
    http://www.photonlexicon.com/forums/...h-Power-Lasers

    Pascal
    Connect your Raspberry PI to teleoperate, make and share securely any type of robots
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  5. #15
    Join Date
    Jan 2009
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    1,622

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    Quote Originally Posted by Serveurperso View Post
    Do you have recent pictures of CNI head ?
    On Lasever head, all screws is not anodized.
    On CNI head, all screws is black anodized.

    They probably use the same industry standard box...
    http://www.photonlexicon.com/forums/...h-Power-Lasers

    Pascal
    In the above link, in post #7 the head pictured (lasever) has black anodized screws..

  6. #16
    Join Date
    Jan 2010
    Location
    Paris
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    Yes it's true !

    I get a CNI laser head ?! with this nice 5V driver...
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  7. #17
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    Jan 2009
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    It is possible, but as long as it hasn't been overdriven there's really no problem with that. CNI has a long standing good reputation, and they do supply many other laser distributors. Really I woudn't be overly worried since you have a warranty with lasever. If it dies prematurely, you should be able to get support.

  8. #18
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    Jan 2010
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    Paris
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    Default General DPSS / pump ld efficiency question...

    Quote Originally Posted by ElektroFreak View Post
    It is possible, but as long as it hasn't been overdriven there's really no problem with that. CNI has a long standing good reputation, and they do supply many other laser distributors. Really I woudn't be overly worried since you have a warranty with lasever. If it dies prematurely, you should be able to get support.
    They certified me to have slightly decreased the power to use the laser >12/24 (advertising) ! Normaly I have a underpowered laser > 10000H + MTBF ! But I could not know with only one year waranty/usage...

    This is the CNI module : http://www.cnilaser.com/PDF/MGL-H-532.pdf
    I suppose that for any output power inside this scale, it's the same power for pump diode ?
    Simply measuring the consumption of the diode + output power to know the efficiency Vs. a genuine 1W CNI ?

    Edit : I notice that I have some rare fluctuations in beam profile. I do not know if this is normal for lasers of this power...

    Pascal
    Last edited by Serveurperso; 02-02-2010 at 10:47.
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  9. #19
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    Jan 2009
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    Quote Originally Posted by Serveurperso View Post
    They certified me to have slightly decreased the power to use the laser >12/24 (advertising) ! Normaly I have a underpowered laser > 10000H + MTBF ! But I could not know with only one year waranty/usage...

    This is the CNI module : http://www.cnilaser.com/PDF/MGL-H-532.pdf
    I suppose that for any output power inside this scale, it's the same power for pump diode ?
    Simply measuring the consumption of the diode + output power to know the efficiency Vs. a genuine 1W CNI ?

    Edit : I notice that I have some rare fluctuations in beam profile. I do not know if this is normal for lasers of this power...

    Pascal
    The fluctuations are completely normal, especially when modulating or during warmup (15 min after startup). With high-powered Chinese lasers (linear cavity) this is often very pronounced. These lasers are not actually true TEM00, so the profile will change shape often under the above conditions..

  10. #20
    Join Date
    Jan 2007
    Posts
    142

    Default Lasever is able

    Thank you Pascal for the great review! And thanks for friends' and clients' concern on Lasever! I am proud to state that Lasever is able to make the laser! We insist on supplying better products for lower prices. We have experts in the concentrated fields and work for the requirements of customers professionally.

    David
    Last edited by Lasever; 02-03-2010 at 01:10.
    Professional manufacturer for High Power DPSS and Diode Lasers.
    1~8W 638nm Red
    1~8W 520nm Green
    1~20W 445/465nm Blue
    3~10W RGB laser
    http://www.lasever.com/
    Email: sales@lasever.com

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