By Topic

Improved Amplitude and Phase Accuracy of a Fourier-Domain Optical Processor With Feedback

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
4 Author(s)
S. G. Murdoch$^{1}$Department of Physics, University of Auckland, Auckland, New Zealand ; R. T. Watts ; R. J. Provo ; L. P. Barry

We demonstrate that the amplitude and phase accuracy of a Fourier-domain optical processor (FDOP) can be improved by an iterative feedback technique. The spectral amplitude and phase of a periodic optical signal exiting the instrument is monitored using a linear self-referenced electric field measurement. Comparison of this measured output signal with the target waveform allows an iterative correction to be applied to the FDOP that is used to shape the amplitude and phase of the input signal. The feedback system used is capable of correcting many of the common imperfections found in these devices. Experimentally, we are able to demonstrate a factor of three improvements in both the spectral amplitude and phase accuracy of the output waveform.

Published in:

IEEE Photonics Journal  (Volume:3 ,  Issue: 4 )