Optical fiber flanges, also known as splitters, connectors, adapters, and fiber optic couplers, are components used to realize optical signal splitting/combining, or to extend optical fiber links. They belong to the field of optical passive components and are used in telecommunication networks. , CATV network, user loop system, and local area network will be applied. The following editor will introduce the classification and principle of fiber optic flanges? Come take a look!

1. What are the classifications of fiber optic flanges?

According to the different optical fibers of the flange, there are the following classifications:

1. SC fiber optic flange

Applied to the SC fiber optic interface, it looks very similar to the RJ-45 interface, but the SC interface is flatter, the obvious difference is the contacts inside, if there are 8 thin copper contacts, it is the RJ-45 interface , if it is a copper column, it is an SC optical fiber interface.

2. LC fiber optic flange

Applied to the LC fiber optic interface, the connector connected to the SFP module is made of a modular jack (RJ) latch mechanism that is easy to operate. (commonly used by routers)

3. FC fiber optic flange

Applied to the FC optical fiber interface, the external reinforcement method is a metal sleeve, and the fastening method is a turnbuckle. Generally used on the ODF side (the most used on the distribution frame)

4. ST fiber coupler

Applied to ST optical fiber interface, often used in optical fiber distribution frame, the shell is round, and the fastening method is a turnbuckle. (For 10Base-F connections, the connector is usually ST type. Commonly used in fiber distribution frames)  

2. What are the principles of fiber optic flanges?

Optical fiber coupler is a device for detachable (movable) connection between optical fiber and optical fiber. It precisely butts the two end faces of optical fiber so that the optical energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent. And make it intervene in the optical link so as to minimize the impact on the system. For the waveguide fiber optic flange, it is generally a component with a Y-shaped branch, and the optical signal input by an optical fiber can be equally divided by it. When the opening angle of the flange branch increases, the light leaking into the cladding will increase to increase the excess loss, so the opening angle is generally within 30°, so the length of the waveguide fiber flange cannot be too short . The above is the specific content about “classification and principle of optical fiber flange”. Hope you enjoy these contents. If you want to know more about fiber optic flanges, please continue to pay attention to Huijue Network.