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Various Types of Simulators

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Optical communication products

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Technical Specifications.The following is just an example. For more lens parameters, please contact us.

Atmospheric Simulation Systems

Hot-Air Convection Atmospheric Turbulence Simulator

Product Functions:

The simulator reproduces the primary effects of laser beam propagation through the Earth's atmosphere, including intensity scintillation, angle-of-arrival fluctuations, and beam wander. Input parameters are configurable, allowing users to set atmospheric coherence length and other turbulence-related parameters. The output results can be monitored and compared with theoretical values. The system is widely used for functional verification and performance testing of various laser systems operating in atmospheric channels.

System Components and Specifications:

1.Atmospheric Turbulence Simulation Device

(1) Clear aperture: Customizable

(2) Turbulence simulator length: ≥ 600 mm

(3) Airflow speed: ≤ 5 m/s (adjustable)

(4) Atmospheric coherence length (r₀): 1 cm–20 cm @ 550 nm (adjustable)

(5) Control: Touchscreen control with Ethernet communication interface

(6) Turbulence chamber sealed with optical windows

(7) Power supply: 220 VAC (customizable)

2.Atmospheric Aerosol Simulation Device

(1) Clear aperture: Customizable

(2) Aerosol simulator length: ≥ 600 mm

(3) Aerosol type: PAO, etc. (customizable)

(4) Adaptive aerosol concentration control

(5) Control: Touchscreen control with Ethernet communication interface

(6) Power supply: 220 VAC (customizable)

3.Atmospheric Attenuation Simulation Device

(1) Clear aperture: Customizable

(2) Length: ≥ 600 mm

(3) Transmittance: 40%–100% (customizable)

(4) Control: Touchscreen control with Ethernet communication interface

(5) Power supply: 220 VAC (customizable)

Liquid Crystal Atmospheric Turbulence Simulator

Main Functions:

This product provides rapid and quantitative simulation of atmospheric turbulence effects on optical beam propagation. It can simulate the effects caused by atmospheric turbulence, including intensity scintillation (under finite-aperture receiving conditions), angle-of-arrival fluctuations, beam spreading, beam wander, optical phase distortion, and beam coherence degradation.

Input parameters are configurable, allowing users to set transmission distance, refractive-index structure constant (Cn²), atmospheric coherence length (r₀), and other atmospheric parameters. Output results can be monitored in real time. The simulator is widely used for functional verification and performance testing of various laser systems operating in atmospheric environments.

Key Advantages:

High turbulence generation accuracy
Excellent repeatability
Fast setup and rapid deployment

Applications:

Free-space optical communication system testing
Laser ranging and LiDAR system testing
Other laser systems operating in atmospheric environments

Main Technical Specifications:

Atmospheric coherence length: 1–25 cm
Phase simulation accuracy: λ/8
Coherence length simulation RMS error:
0.20 cm @ r₀ = 1 cm
0.64 cm @ r₀ = 3 cm
1.11 cm @ r₀ = 5 cm
Coherence length simulation PV error:
0.67 cm @ r₀ = 1 cm
1.14 cm @ r₀ = 3 cm
2.00 cm @ r₀ = 5 cm

Software Functions:

Three operating modes are available:

Direct input of atmospheric coherence length (r₀). The turbulence phase screen is generated in real time.
Turbulence simulation using a phase screen generated by Zernike polynomials.
Input atmospheric environmental parameters. The software automatically calculates the atmospheric coherence length (r₀) and performs turbulence simulation using the method described in Mode 1.

Near-Range Laser Communication Module

Hot Air Convection Atmospheric Turbulence Simulation Device