InP-based polarization rotator-splitter for mid-infrared photonic integration circuits
Abstract
We design and experimentally demonstrate the propagation loss of waveguides and the operation of a single-step etched polarization rotator-splitter (PRS) in low index contrast InGaAs-InP material system at 6.15 μm. Propagation losses 4.19 dB/cm for TM mode and 3.25 dB/cm for TE mode are measured. The designed PRS can achieve near 100% conversion efficiency. This study enables the possibility of monolithic integration of quantum cascade devices with TM-polarized characteristics and TE-guiding two-dimensional slotted photonic crystal waveguide gas sensors for on-chip monolithic absorption spectroscopy.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 01, 2019
- Source ID
- 10.1063/1.5055863
Entities
People
- Ali Rostamian
- Chi-Jui Chung
- Jason Midkiff
- Joel Guo
- Kyoung Min Yoo
- Ray T Chen
- Swapnajit Chakravarty
Organizations
- National Science Foundation
- United States Army
- University of Texas at Austin