Electro-Optic Modulator
EOM-01-xx-yy
This low-cost EOM is available at frequencies from 5 to 20 MHz (standard models listed below), with other frequencies possible on request. It is the perfect solution for researchers wishing to stabilise single-frequency lasers by modulating a probe beam in a Frequency Modulation spectroscopy set-up, while leaving the main beam unaffected. The EOM can be mounted in a standard 1”mirror mount, allowing for simple placement and alignment within your optical setup.
The unit may be supplied with a suitable optional low-voltage oscillator. Coatings for different wavelength ranges are available.
Applications
Generation of side-bands on single-frequency lasers for high resolution locking techniques, such as frequency modulation saturation spectroscopy or stabilization to an optical resonator.
Specifications EOM-01
| Resonant Frequency (xx MHz) | 5, 6.25, 10, 12.5, 15, 20 (choose) |
| A.R. Coated (yy = λ range) | U = 400nm-700nm V = 650nm-1000nm IR = 1100nm-1500nm |
| Aperture Diameter | 3 mm |
| Crystal Material | Lithium Niobate |
| Crystal Flatness | Lambda/10 |
| SWR at resonance | <1.1:1 (typical) |
| Impedance at resonance | 50 Ω (nominal) |
| Modulation Bandwidth | 600kHz (-3dB) typical |
| Diameter | 25.4 mm (1”) |
| Length | 35 mm |
Optional Driver
| Manufacturer | Thurlby Thandar |
| Model | TG120 |
| Description | Function Generator |
| Frequency | 0.2Hz to 20MHz |
| Output Voltage | 10mV to 20V (pk-pk) |
Optional Amplifier
| Frequency Response | 0.4-150 MHz |
| Gain | 20dB |
| Max Input | 1 |
| Max Output | 10V |
| Input/Output Impedance | 50 Ω/50 Ω |
| Dimensions (HxWxL) | 67mm x 204mm x 180mm |
| Weight | 1.6 kg |
| Power Supply | 240Vac(Max power 50VA) |
| Connectors | BNC Input and Output |