Fiber optic loss and length test systems and methods with embedded fiber brags systems

An optical fiber loss and length test system comprising:

• a first test equipment comprising a first power meter and a first light source optically branched to a first port;
• a second test equipment comprising a second light source coupled to a second port;
• and
• circuitry in communication with the first test equipment, the circuitry comprising a processor and a memory storing instructions that, when executed by the processor, cause:
• the first light source to generate a first light pulse transmitted to a first end of an optical fiber through the first port at a first time;
• the first light pulse to reflect off an FBG disposed at a second end of the optical fiber;
• the first power meter to receive a reflected first light pulse at a second time;
• and
• the circuitry to determine a length of the optical fiber based on a time delay between the first and second times.