Abstract
Spurious reflections can be a problematic issue in integrated optical devices, such as lasers [1], detectors [2], or multi-mode interference (MMI) couplers [3]. Here we demonstrate a simple method to localize such faint reflections occurring inside the chip, using only wavelength-swept power transmission measurements. The method does not require a special measurement setup and is based on minimum phase techniques, which were recently proposed for integrated optical device characterization [4].
© 2009 IEEE
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