f***@oliveiracastro.com
2014-11-22 14:51:55 UTC
Hi,
I'm sorry if this is too basic but I'm trying to find a suitable laser diode for a research project and I can't seem to understand some of the options available on the market.
I need 50 to 100mJ laser pulses. The wavelength is not really important. I'd rather use visible lasers but it seems that high power lasers are easier to find on the near infrared zone.
The ideal pulse width is 1ms but for that I would have to use a 50 to 100W laser diode.
I could find a few 25 to 40W diodes and maybe I could use 2-3ms pulses (research will tell) but all of them are driven by currents of 40 to 50 Amps. Thats a lot. A few questions that I couldn't answer through days and days of googling are:
1) I couldn't find millisecond pulse diodes. I presume I'd have to use a CW and leave the pulses to the driver. Am I correct?
2) Are there any higher voltage diodes so I don't need 50 Amps of current to drive them? I could find a couple fiber coupled lasers in the range of 60 to 100W that ask for only 10 to 15Amps because they use a higher voltage like 25V. (http://en.real-light.com/downloadRepository/4aad7c0c-4a5a-4d60-889a-e6b798d7a48f.pdf). I don't know if this laser costs more than my house but I'm glad I could find something that wouldn't need a small power plant to drive.
3) Do you know of any milisecond pulses capable driver/power supply that outputs 50 to 100Amps without needing a direct cable from the nearest nuclear power plant?
Thank you,
Felipe
I'm sorry if this is too basic but I'm trying to find a suitable laser diode for a research project and I can't seem to understand some of the options available on the market.
I need 50 to 100mJ laser pulses. The wavelength is not really important. I'd rather use visible lasers but it seems that high power lasers are easier to find on the near infrared zone.
The ideal pulse width is 1ms but for that I would have to use a 50 to 100W laser diode.
I could find a few 25 to 40W diodes and maybe I could use 2-3ms pulses (research will tell) but all of them are driven by currents of 40 to 50 Amps. Thats a lot. A few questions that I couldn't answer through days and days of googling are:
1) I couldn't find millisecond pulse diodes. I presume I'd have to use a CW and leave the pulses to the driver. Am I correct?
2) Are there any higher voltage diodes so I don't need 50 Amps of current to drive them? I could find a couple fiber coupled lasers in the range of 60 to 100W that ask for only 10 to 15Amps because they use a higher voltage like 25V. (http://en.real-light.com/downloadRepository/4aad7c0c-4a5a-4d60-889a-e6b798d7a48f.pdf). I don't know if this laser costs more than my house but I'm glad I could find something that wouldn't need a small power plant to drive.
3) Do you know of any milisecond pulses capable driver/power supply that outputs 50 to 100Amps without needing a direct cable from the nearest nuclear power plant?
Thank you,
Felipe