5Pack Fiber Optic Loopback Adapter Tester, LC/UPC Multimode Duplex - 50/125μm OM1 Fiber Optic Cable Connector Test Plug for Self-Testing SFP Modules or Network Equipment

Fiber optic communication system: The fiber optic circulator plays an important role in the fiber optic communication system. It can be used to realize the unidirectional transmission, distribution and multiplexing of optical signals, and improve the transmission capacity and efficiency of the system. For example, in a wavelength division multiplexing (WDM) system, the fiber optic circulator can be used to realize the multiplexing and demultiplexing of optical signals of different wavelengths and improve the transmission capacity and efficiency of the system.

• "Insertion loss",The insertion loss of multimode fiber optic circuit breakers is between 0.5dB and 1dB. Low insertion loss can reduce the energy loss of optical signals during transmission, ensuring the strength and quality of the signal.
• "Return loss", Return loss reflects the ability of fiber optic circuit breakers to suppress reflected light. The return loss of multi-mode dual core fiber optic circuit breakers is generally required to be greater than 20dB to 30dB or more. A higher return loss can reduce the interference of reflected light on the system and improve the stability of signal transmission.
• "Wavelength range",The multi-mode dual core fiber optic circuit transmits optical signals at two wavelengths, 850nm and 1300nm.
• "Working temperature", The working temperature range of the multimode fiber optic circuit breaker is between -20 ℃ and 70 ℃, which can adapt to the temperature requirements of most indoor environments.
• "Connector types" There are various types of connectors for fiber optic circuit breakers, such as LC, SC, FC, ST, etc. LC connectors are small in size, easy to plug and unplug, and suitable for high-density wiring environments; SC connectors have good mechanical stability; FC connectors have high connection reliability and are commonly used in situations where high connection stability is required; The structure of ST connector is simple and easy to install.