AOM Bragg Angle & Deflection calculator
Bragg incidence and full deflection angle for an acousto-optic modulator.
Category: Active Optics
Formula: θB = λ·f/(2·v) in air (λ·f/(2·n·v) in the crystal) · Δθ = 2·θB = λ·f/v
Inputs
| Input | Parameter | Unit | Default |
|---|---|---|---|
| Wavelength | lam | nm | 532 |
| RF frequency | f | MHz | 80 |
| Acoustic velocity (m/s) | v | 4200 | |
| Index n | n | 2.26 |
Result with the default inputs
- Bragg angle (air): 5.0667 mrad
- Deflection Δθ (air): 10.1334 mrad
- Bragg angle (crystal): 2.2419 mrad
- θB air (deg): 0.2903 °
Open it with your own values: put each input in the address as a parameter, for example /calculators/aom-bragg-angle-deflection?lam=532. A unit other than the listed one goes in <parameter>_unit.
Read more: Wikipedia: Acousto-optic modulator