GaAs/AlAs Multi-Quantum-Well Optical Waveguides Fabricated by Disordering Superlattices

Abstract
GaAs/AlAs multiquantum well waveguides were fabricated by Zn-diffused disordering of superlattices. The measured propagation loss of the straight waveguide was 1.8 dB/cm at a 1.3 µm wavelength. An S-bend waveguide has shown that bending excess loss can be ignored for S-bend curvatures larger than 3 mm in radius.