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

Claim 0:
1. An optical power loss measurement system comprising:
a light source unit comprising:
a visual fiber finder light source for generating visual fiber finder light;
a test light source for generating power measurement test light;
an output port to be connected to one end of an optical fiber link under test; and
light source unit circuitry configured for generating an optical signal at said output port, which combines said visual fiber finder light and said 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 a power meter unit; and

an optical power meter unit comprising:
an input port to be connected to said other end of the optical fiber link under test; and
an optical power meter assembly for measuring an optical power of said test light at said other end, said optical power meter assembly comprising an optical power detector; and
optical power meter unit circuitry configured for 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.