Title :
Analysis of a Synchronized Flattop AWG Using Low Coherence Interferometric Method
Author :
Wang, Zhipeng ; Chen, Yung-Jui ; Doerr, Christopher R.
Author_Institution :
Dept. of Comput. Sci. & Electr. Eng., Univ. of Maryland, Baltimore, MD
fDate :
4/15/2009 12:00:00 AM
Abstract :
We have applied a low coherence interferometric method to investigate the thermal tuning effects of a synchronized arrayed waveguide grating (SAWG). We characterized the periodic waveguide mode profile of the input Mach-Zehnder interferometer (MZI) of an SAWG and measured phase delay changes of the two MZI arms introduced by thermal tuning. These phase delay changes, linear to applied heater power, provide simple and effective thermal control of this unique AWG.
Keywords :
Mach-Zehnder interferometers; arrayed waveguide gratings; light coherence; phase measurement; thermo-optical effects; AWG thermal control; Mach-Zehnder interferometer; SAWG measurement; arrayed waveguide grating; low-coherence interferometric method; periodic waveguide mode profile; phase delay measurement; synchronized flattop AWG analysis; thermal tuning effect; Arrayed waveguide grating (AWG); integrated optics devices; optical filter; planar lightwave circuit;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2013813
