2025-01-03 15:17:55

SWIR Camera And Laser Communication

SWIR cameras can be used in laser communications. Due to the high photon energy of SWIR, the relatively small atmospheric attenuation, and the good transmittance of certain materials in this spectral range, it is an ideal choice for laser communications. Today let’s take a closer look at how SWIR camera works in this field.

NASA’s Goddard Space Flight Center/Dave Ryan

Beam pointing and tracking:SWIR camera can detect the beam emitted by the laser transmitter, and can achieve accurate pointing and tracking even in low light conditions. This is essential for ensuring the stability and reliability of laser communications, especially in dynamic environments, such as on mobile platforms or there is atmospheric turbulence. SWIR camera can provide feedback signals for adjusting the pointing of the transmitter to keep the beam aligned with the receiver.

Receiver beam detection: At the receiving end, SWIR cameras can be used to detect the received laser signal. Therefore analyzing parameters such as signal strength, spot size and position, then optimizing the receiving efficiency and improving the signal-to-noise ratio. This is essential for receiving weak laser signals against complex backgrounds.

Wavelength selection: SWIR cameras with specific filters to selectively receive laser signals of specific wavelengths, thereby reducing the impact of background noise and improving communication quality.

Atmospheric disturbance compensation: By analyzing the received beam in real time, SWIR camera can be helpful in the development of more advanced algorithms to compensate for signal attenuation and distortion caused by atmospheric turbulence, thereby improving the stability and reliability of communications.

SWIR camera plays a key role in laser communication systems, if you are in this field, welcome to contact us to find out more.

Sales Manager:   Lily Liu