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Pulsed laser driver

This question is answered
Nasser Kardan
Posted by Nasser Kardan
on Oct 03 2011 11:57 AM
Prodigy50 points

I am looking for a chip with the following spec for pulsed laser drive:

- Max current 2A
- Min pulse width 1 or 1.5nsec
- Max repetition Rate  20MHz
- VCC= 5V  Max =12V

MOSFETs could be  included or not.  Does anybody could help.

Thanks

laser driver
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  • Alex Davidson
    Posted by Alex Davidson
    on Oct 06 2011 08:27 AM
    Expert4820 points
    ieee_laser_driver.pdf

    The laser drivers in our portfolio are for gigabit communication links and can not provide this much current.

    Providing 2A of current in 1ns is challenging. This will most likely need to be a descrete design. I have attached a paper showing a pulsed laser driver that can provide 2.5A of current but the risetime was around 17ns. The risetime was 8ns for 1A.

    I aso found a company called Avtech with pulsed laser drivers with sub-nanosecond rise times. Maybe you can check into this.

    http://www.avtechpulse.com/laser/avo-9f1/

    Regards,

    Alex.

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  • Nasser Kardan
    Posted by Nasser Kardan
    on Nov 07 2011 11:08 AM
    Verified Answer
    Verified by Alex Davidson
    Prodigy50 points

    Thanks the information you provided is very helpful.

    Regards,

    Nasser

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