Patent ID: 11921000
Assignee: EXFO INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. An optical power loss measurement method comprising:
generating visual fiber finder light using a visual fiber finder light source of a light source unit;
generating power measurement test light using a test light source of a light source unit;
using a light source unit circuitry of a light source unit, generating an optical signal on an output port to be connected at one end of an optical fiber link under test, which optical signal combines visual fiber finder light and power measurement test light together interleaved in a given cyclic sequence, whereby the visual fiber finder light is visible at the other end of the optical fiber link under test to assist a user in identifying where to connect an optical power meter unit;
using an optical power meter assembly of an optical power meter unit, measuring an optical power of said test light via an input port to be connected to said other end of the optical fiber link under test, said optical power meter assembly comprising an optical power detector; and
using optical power meter unit circuitry of said optical power meter unit, controlling a time slot when said optical power of said test light is measured based on the optical signal detected at said optical power detector and said given cyclic sequence.