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Seten: What are the six factors that affect the transmission distance of optical modules

Date:December 4th,2023 View:97
With the continuous maturity of communication industry technology, the distance of fiber optic network transmission is also gradually extended. Do you know what factors affect the transmission distance of optical modules< Br/>


1. Light source



The quality of the conversion of photoelectric signals by optical modules largely depends on the internal light source. Usually, higher light sources can provide greater transmission distance because optical signals can reduce attenuation during transmission. The light source in the optical module usually uses LED (light-emitting diode) or laser diode. It should be noted that their quality directly affects the transmission distance of optical signals< Br/>


2. Dispersion



Fiber dispersion refers to the frequency distortion that occurs when optical signals are transmitted in optical fibers. The main reason for dispersion is that light signals of different frequencies have different propagation speeds during the propagation process, resulting in different arrival times at the receiving end, leading to pulse broadening and ultimately inability to distinguish signal values. The use of dispersion suppression techniques, such as fiber optic dispersion compensation modules, can increase transmission distance< Br/>


3. Loss



Fiber loss refers to the attenuation of optical signals during transmission in optical fibers. Loss refers to the loss of optical energy caused by the absorption, scattering, and leakage of the medium during the transmission of light in optical fibers. This energy is dissipated at a certain ratio as the transmission distance increases. Fiber loss includes various forms of loss, such as absorption loss, scattering loss, and bending loss. Lower fiber loss can support longer transmission distances< Br/>


4. Transmission rate



The transmission rate refers to the speed at which optical modules transmit data. Higher transmission rates require higher light source power and lower losses to support longer transmission distances< Br/>


5. Attenuation compensation


As the transmission distance increases, the intensity of the optical signal will gradually weaken. To compensate for attenuation during transmission, devices such as optical amplifiers or relays can be used to enhance signal strength and support longer transmission distances< Br/>


6. Environmental factors


Environmental factors such as temperature, humidity, and air pressure can also affect the transmission distance. High temperature, high humidity, and high air pressure may exacerbate the attenuation and dispersion of optical fibers, thereby limiting transmission distance< Br/>


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