AOM Rise Time & Bandwidth calculator

Modulation rise time set by the acoustic transit across the beam waist.

Category: Active Optics

Formula: T = D/v · tr = 0.6408·T · f−3dB = 0.7496/T (Gaussian beam, Ø = 1/e²)

Inputs

InputParameterUnitDefault
Beam Ø in crystaldµm100
Acoustic velocity (m/s)v4200

Result with the default inputs

  • Transit time: 23.8095 ns
  • Rise time (10–90 %): 15.2566 ns
  • Modulation BW (−3 dB): 31.4816 MHz

Open it with your own values: put each input in the address as a parameter, for example /calculators/aom-rise-time-bandwidth?d=100. A unit other than the listed one goes in <parameter>_unit.

Read more: Wikipedia: Acousto-optic modulator

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