We report the fabrication and characterization of a new polarization converter for InGaAsP-InP photonic integrated circuits. The converter consists of two right trapezoidal sections with the angled sidewalls etched wetly. The converters show a greatly improved tolerance to variations of the fabrication, an averaged efficiency of polarization conversion of 99.8% and a loss of about 0.7 dB at a wavelength of 1.535 μm.
© 2013 Optical Society of America
Original Manuscript: April 5, 2013
Revised Manuscript: July 8, 2013
Manuscript Accepted: August 3, 2013
Published: September 4, 2013
Dzmitry O. Dzibrou, Jos J. G. M. van der Tol, and Meint K. Smit, "Tolerant polarization converter for InGaAsP-InP photonic integrated circuits," Opt. Lett. 38, 3482-3484 (2013)