How can you work out peak power from average power?

August 10th, 2009

If I power a laser using a pulse generator which I set to 680kHz with a pulse width of 105ns and amplitude of 1A; and subsequently measure the AVERAGE optical power produced as 3.3mW how can I work out what the peak power is?

Since RMS values are usually the square root of two from the peak values, I think it is just done in reverse, multiply average power by square root of two (1.414).
Peak power = 3.3mW * 1.414 = 4.6662 mW

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2 Responses to “How can you work out peak power from average power?”

  1. Comment by biire2u
    August 11th, 2009

    Since RMS values are usually the square root of two from the peak values, I think it is just done in reverse, multiply average power by square root of two (1.414).
    Peak power = 3.3mW * 1.414 = 4.6662 mW
    References :

  2. Comment by guru
    August 11th, 2009

    680 KHz is 1.47µS so 105nS is 7.124% of the time
    3.3/7.124*100= 46.32W

    I think!

    Hope this properly answers your question

    PS
    he square root of 2 is for sinewave only

    Guru
    References :