What is the Multimode fiber (MM Fiber)?
Multi-Mode Fiber is an optical fiber that permits multiple modes of transmission. The diameter of the core of multimode fibers is typically 50mm/62.5mm. Because of the massive central diameter in multimode fibers can accommodate different types of light transmission through one thread. The most common frequencies for the multimode fiber are 850nm and 1300nm, respectively. Additionally, a new multimode fiber technology called WBMMF (Wideband Multimode Fiber) uses wavelengths ranging from 850nm to 953nm.
Multimode fiber and Single-mode Fiber have a cladding diameter of around 125mm.
A smaller single-mode fiber allows for better reflections and only one type of light to travel, enabling light signals to go further. The smaller number of light reflections when light passes through the core minimizes attenuation and results in further signal propagation. Since it has neither or extremely low inter-mode dispersion, single-mode fiber transmits for 40 kilometers or more without affecting the signal. Therefore, single-mode fiber is commonly employed for long-distance data transmission and is extensively used by telecom companies, cable companies, colleges, and universities.
Multimode fibers have more giant diameter cores and can transmit multiple types of light. When the multimode transmission is used, the intermodal dispersion gets more extensive because of the larger core size, meaning that light “spreads” more quickly. Quality of signal affected over long distances Multimode fiber is generally utilized for shorter distances, audio/video and Local Area Networks (LANs), and multimode fiber OM3/OM4/OM5 can be used to support high-speed data transmission.
Bandwidth and Capacity
The term “bandwidth” refers to the capacity to transmit information. The most significant factor influencing the speed of optical fiber transmissions is dispersion among the various modes. Of these, modes dispersions are the most important. Single-mode fiber has a tiny distribution, which means it can transmit light for long distances over a wide range. Multimode fiber is a source of interference as well as interference and other complicated issues. Its bandwidth and capacity are less when compared to single-mode. The most recent generation in multimode fiber’s bandwidth OM5 is set at 28000 MHz per km, whereas the one-mode bandwidth of single-mode is higher.
If single mode fiber has more bandwidth and a longer transmission distance, why do we require multimode fiber? The cost could be the primary factor in this issue. Since the diameter of single mode fiber is small, it’s difficult to control the beam’s transmission. Therefore, it is necessary to use a laser as the light source. Since optical terminators are expensive, using single-mode fibers is more costly than multimode optic cables. This is why most data centers utilize multimode fiber to cut costs.
The type of fiber to utilize depends on the specific applications. HYC offers a variety and types of optical patch cords. HYC is a leading national high-tech company focused on R&D production, sales, and support of passive core components for visual communications. The main products offered by the company are fiber optic connectors (data center high-density optical connectors) and wavelength division multiplexers optical splitters, as well as other Three optical passive infrastructure components which are used extensively in fiber-to-the-home mobile communications, 4G/5G, Internet Data Centers, Defense Communications, and various other areas.