Acousto-Optic Modulators for Quantum Technology and Laser Velocimetry
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Ships from:
China
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Sold by:
Guangao Technology -
On FindLight:
since 2025
Description
The Acousto-Optic Q-Switch (AOQS) is a technology that utilizes the interaction between sound and light to control the optical cavity loss. Acousto-optical Q-switching is to form ultrasonic waves through electro-acoustic conversion to make the refractive index of the modulating medium change periodically. The changes cause diffraction of the incident light, leading to diffraction losses and a decrease in the Q-factor, and the threshold for population inversion required to form a laser is very high, so laser oscillation cannot be formed. At a certain moment when the population inversion
on the upper energy level accumulates and approaches the threshold under the excitation of the optical pump, the loss of the resonant cavity is suddenly reduced, that is, the Q switch is turned on, then the Q value in the cavity increases sharply, the threshold for population inversion suddenly decreases, as a result, the accumulated
population inversion in the cavity far exceeds the threshold, allowing the stored energy to be released in an extremely short time, generating an intense laser pulse output.
The acousto-optic Q switch can modulate continuous laser into giant pulse lasers with different frequencies, different pulse widths, and different codes. It features high peak power, narrow pulse width, high repetition frequency, fast modulation speed, high on-off extinction ratio. The losses in the "off" state are extremely low, can maximize the output intensity and has excellent reliability.
Acousto-Optic Modulators for Quantum Technology and Laser Velocimetry
Specifications |
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|---|---|
| Center Wavelength: | 1064 nm |
| Operational Wavelength Range: | 1064 – 1550 nm |
| Acoustic Mode: | Transverse |
| Light Polarization: | Linear |
| Optical Power Density: | 1000000 KW/cm2 |
| Wavelength Range: | Ultraviolet to Infrared |
| R&D And Production Base Size: | 3,000 square meters |
Features
- High peak power
- Narrow pulse width
- High repetition frequency
- Fast modulation speed
- High on-off extinction radio
Applications
- Laser marking
- Laser engraving
- Laser medicine
- Laser ranging
Frequently Asked Questions
GuangAo Technology (Wuhan) Co., Ltd is specialized in the field of sound and light technology, particularly in the research, development, production, and sales of acousto-optic devices.
GuangAo Technology was established in 2017.
Acousto-optic devices are used in various cutting-edge fields such as optical fiber sensing, Wiener material processing, quantum technology, and laser velocimetry.
Acousto-optic technology is based on the principle of acoustic-optical interaction, which modulates the frequency, amplitude, angle, and other characteristics of lasers.
An acousto-optic device mainly consists of a piezoelectric transducer, an acousto-optic medium, and a bonding layer.
When an RF signal is loaded onto the piezoelectric transducer, it vibrates to generate ultrasound, which interacts with light in the acousto-optic medium. This interaction forms an ultrasonic volume grating that diffracts incident light, allowing control over its characteristics.
Acousto-optic devices have a high extinction ratio, high damage threshold, high diffraction efficiency, and high response speed.