Q. What is an optical power meter?

Answer

A suitable power meter will be able to measure light at the correct wavelength and across the required power range. For precise measurements of the output power of fiber optic devices or the optical signal strength via a fiber optic cable, a device known as an optical power meter (OPM) is utilized. It also aids in calculating the optical signal's power loss due to propagation through various optical media. A calibrated sensor, amplifier circuit, and display are the main components of an optical power meter. The semiconductor used in the sensor is often indium gallium arsenide (InGaAs), germanium (Ge), or silicon (Si). The optical power measurement and the matching wavelength of the optical signal are displayed.