Title :
Improved method of measuring loss and phase shifts in waveguide devices
Author :
Henning, I.D. ; Rodgers, P.M.
Author_Institution :
British Telecom Research Laboratories, Ipswich, UK
Abstract :
The letter presents two novel methods, based on Fabry-Perot interference, for the characterisation of passive and active waveguide devices. Loss measurements have been made on passive devices using a distributed feedback laser as a frequency-tunable source. Simultaneous measurement of phase shift and loss are obtained for a phase modulator by using the electro-optic effect.
Keywords :
electro-optical effects; loss measurement; optical losses; optical variables measurement; optical waveguides; phase measurement; phase modulation; Fabry-Perot interference; active waveguide devices; distributed feedback laser; electro-optic effect; frequency-tunable source; loss measurement; passive devices; phase modulator; phase shift measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870866
