These modules are usually applied in optical fiber transmission environments with distances of 40 - 80km. Due to the limited application scenarios of 40 - 80km, as well as the more complex components and manufacturing processes, this type of module is relatively expensive. Multimode fiber distance is shorter than singlemode fiber reach. Impacts cost, power, and distance. According to the different transmission distances of. The Optical Transport Network (OTN) is an internationally standardized set of protocols that define how digital signals are encapsulated, multiplexed, and transported across optical fiber infrastructure. Key elements of OTN include: Standardized framing (the “digital wrapper”): OTN adds overhead. The transmission distance of optical transceiver modules is divided into short distance, medium distance, and long distance. Transmission distances greater than or equal to 30km. If the optical module works at a wavelength near 850nm (880nm) or 910nm (940nm), then the module is a multi-mode fiber (MMF) optical transceiver, and if the working wavelength is 1310nm or 1550nm, it is a single-mode fiber (SMF)optical module.
[PDF Version]