Birefringence of GaN/AlGaN optical waveguides

R. Hui, Y. Wan, J. Li, S. X. Jin, J. Y. Lin, H. X. Jiang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


A study was performed on birefringence of GaN/AlGaN planar optical waveguides grown on a sapphire substrate. It was demonstrated that the refractive index not only depends on the signal polarization states parallel or perpendicular to the c axis, it also depends on the direction of optical propagation in the a-b plane. The results showed that periodicity of 60° was found for the birefringence change versus the waveguide orientation.

Original languageEnglish
Pages (from-to)1698-1700
Number of pages3
JournalApplied Physics Letters
Issue number9
StatePublished - Sep 1 2003


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