FSO Transceiver Thermal Compensation for Lens-Fiber Distance Stability

The patent applies thermal expansion by using a temperature compensation device made of a material with a higher expansion coefficient than the body material. As temperature changes, the compensation device expands or contracts at a different rate than the body, creating a compensating effect that maintains the critical distance between the lens and optical fiber. This is achieved by strategically positioning and dimensioning the compensation device within the transceiver assembly.

The patent changes the physical parameters of the system by introducing a material with different thermal expansion characteristics. The compensation device is designed with specific dimensions and material properties (higher expansion coefficient) that, when combined with the body's thermal expansion, result in a net stable distance between optical components across temperature variations.

The patent implements self-service by designing the transceiver assembly to maintain alignment through passive thermal compensation. The temperature compensation device automatically adjusts for thermal expansion and contraction, and the mechanical design inherently maintains the critical distances between components without requiring active control systems, motors, or electronic feedback mechanisms.

The patent extracts the complex automatic alignment system (motors, control devices, sensors) and replaces it with a simplified mechanical design that uses thermal expansion principles and precise mechanical positioning to achieve and maintain alignment. This removes the need for expensive and complex electronic control systems while maintaining sufficient alignment precision.