Testing of passive optical components

摘要

Methods and devices provide for transmitting a series of optical signals within a range of an O-band through a U-band into a device under test comprising one or more passive optical components; measuring powers of the optical signals that propagated through the device under test; calculating wavelength-dependent insertion loss values based on the measured power of the optical signals; measuring powers of reflected portions of the optical signals that propagated through the device under test; and calculating wavelength-dependent return loss values based on the measured powers of the reflected portion of the optical signal.

主权项

1. A method comprising:
setting a state of polarization of an optical signal; setting a first initial state of polarization of the optical signal that propagates through a device under test; setting a second initial state of polarization of a reflected portion of the optical signal that propagates through the device under test; transmitting the optical signal, via a test system, into the device under test comprising one or more passive optical components; measuring a power of the optical signal that propagated through the device under test; calculating a wavelength-dependent insertion loss based on the measured power of the optical signal; measuring another power of the reflected portion of the optical signal that propagated through the device under test; and calculating a wavelength-dependent return loss based on the other measured power of the reflected portion of the optical signal.