The reflector sends back the test signal from the OTDR at the optical line terminal (OLT) side, while allowing the traffic signal of the PON system to pass through with minimal loss. It operates similarly to a bandpass filter, fully reflecting light at a specific wavelength while permitting all other wavelengths to pass.
The 1550nm OTDR reflector enhances the OTDR's sensitivity for verifying the optical continuity of a subscriber and for troubleshooting purposes.
Reflect band wavelength range (nm):1545~1555
Pass band wavelength range(nm):1260~1360 & 1460~1520 & 1575~1670