780nm Space AOM Series
An acousto-optic modulator is a kind of acousto-optic product that modulates laser intensity and shifts its frequency by using acousto-optic interaction principle. The RF signal changes into an ultrasonic signal after passing through the piezoelectric transducer, thus changing the refractive index of the acousto-optic medium. After the beam passes through the acousto-optic medium, diffraction occurs, and its frequency and intensity will be changed.Acousto-optic modulators can control speed and modulate light intensity far beyond that of mechanical shutters. The wavelengths range from the ultraviolet to the mid-infrared. Use the recommended companion drivers for optimal performance and a wider range of application options.
Characteristics of 780nm Space AOM Series
- Fast modulation speed
- High diffraction efficiency
- High-temperature stability and reliability
- Small size
Applications of 780nm Space AOM Series
- Lidar
- Material processing
- Laser Doppler system
- Image processing
- Cold atomic physics
Ordering Information of 780nm Space AOM Series
This indicator is a typical optical wavelength indicator, and other wavelengths and frequencies can be selected.
| Parameter | Unit | SGT80-780-2TA | SGT110-780-1TA | SGT200-780-0.5TA | SGT300-780-0.3TA | SGT800-780-0.1PB | SGT1200-780-0.1PB | SGT1500-780-0.1PB | |
| Wavelength | nm | 700-900 | 700-800 | ||||||
| Polarization state of input light | – | arbitrarily | ∥ | ||||||
| Center frequency | MHz | 80 | 110 | 200 | 300 | 800 | 1200 | 1500 | |
| Diffraction efficiency | % | ≥85 | ≥85 | ≥75 | ≥70 | ≥50 | ≥40 | ≥30 | |
| Frequency shift bandwidth | MHz | 20 | 30 | 40 | 50 | ||||
| Optical aperture | mm | 2 | 1 | 0.5 | 0.3 | 0.1 | |||
| Diffraction light separation angle | mrad | 14.9 | 20.4 | 37.1 | 55.7 | 99 | 148 | 186 | |
| Drive power | W | ≤2 | ≤1 | ||||||
| Rise time of light pulse | ns/mm | 160 | 110 | ||||||
| Damage threshold | W/mm2 | 10 | 1 | ||||||
| Static transmissivity | % | ≥95 | ≥70 | ||||||
| Package | – | TA | PB | ||||||
| Extinction ratio | – | ＞1000:1 | |||||||
| RF connector | – | SMA | |||||||
| Input impedance | Ω | 50 | |||||||
| VSWR | – | ＜1.3：1 | |||||||
| Cooling mode | – | Conduction cooling | |||||||
Low-power N-type Acousto Optic Driver for 780nm Space AOM Series
Acousto-optic drivers are RF signal sources optimized for acousto-optic modulators and frequency shifters with driving power below 3W. The radio-frequency signal generated by it excites ultrasonic waves in the medium of the acousto-optic device. The modulation depth, deflection Angle, or tuning frequency of the incident beam is directly controlled by the characteristics of the applied RF signal, including its frequency and amplitude. The driver features efficient thermal management that ensures enhanced temperature stability when paired with compatible acousto-optic devices.
| Supporting Drive | Model SGXXXX-33-N-ab SGXXXX: Base model identifier -33: Denotes RF output power (e.g., 33dBm) -N: Designates package type (specify available options) -X: Function code: Y: Frequency shift function T: Modulation function -A: Power supply voltage: 1: 24V 2: 12V -b: Modulation input type: D: Digital TTL modulation A: Analog modulation | ||||||
| SGT80-33-N-1D SGT80-33-N-1A1 SGT80-33-N-1A5 | SGT110-33-N-1D SGT110-33-N-1A1 SGT110-33-N-1A5 | SGT200-33-N-1D SGT200-33-N-1A1 SGT200-33-N-1A5 | SGT300-33-N-1D SGT300-33-N-1A1 SGT300-33-N-1A5 | ||||
Performance of Low-power N-type Acousto Optic Driver on Space AOM
- Small size
- Fast response time
- Low power consumption
- High-temperature stability and reliability
| Item | Unit | Specifications of the modulation input interface | |||
| Specifications of the modulation input interface | |||||
| Modulated signal input | – | Digital modulation (high level 3.3-5V; low level 0-0.2V@1k Ω) Analog modulation (A1: 0-1V@50 Ω） Analog modulation (A5: 0-5V@1k Ω） | |||
| Interface | – | SMA | |||
| RF output interface specification | |||||
| Output signal frequency | MHz | 80 | 110 | 200 | 300 |
| Frequency stability | ppm | 20 ( 1 Special) | |||
| Rise and fall time | ns | <25 | <20 | <10 | <7 |
| Output signal power | W | ＜2 | |||
| Switching ratio | dB | ≥60 | |||
| Harmonic suppression ratio | dBc | >25 | |||
| Signal output standing wave ratio | – | ≤1.3 | |||
| Interface | – | SMA | |||
| Complete machine specification | |||||
| Maximum power consumption | W | 10 | |||
| Working voltage | Vdc | 24±1V（Optional 12±0.5） | |||
| Power interface | – | Through core capacitance (core wire is connected to positive, solder lug is connected to negative) | |||
| Package | – | N/N2 | |||
