Abstract
The critical role of the optical source spectral linewidth in semiconductor low loss waveguide measurements using the Fabry–Perot resonance method is analyzed. For 5-mm-long GaAs/AlGaAs waveguides with losses in the 1 dB/cm range, a frequency stabilized single mode laser with a linewidth of less than 0.01 Å is required to obtain a loss value accurate to within 5%.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have