We propose a novel digital signal processing (DSP) algorithm for photodiode characterization probed by three wavelengths. The DSP algorithm has low computational complexity. The required number of measurements increases logarithmically with the number of spectral points. For the first time to our knowledge, the phase response of photodiode is characterized up to 20 GHz.
© 2014 Optical Society of America
Original Manuscript: September 25, 2013
Revised Manuscript: December 19, 2013
Manuscript Accepted: December 19, 2013
Published: January 29, 2014
Yifei Wang, Qian Hu, Xi Chen, An Li, Trevor Anderson, and William Shieh, "3-λ characterization of phase response for optical receivers," Opt. Lett. 39, 670-673 (2014)