Anomalous Emission Spectra Observed in InGaAs/AlGaAs Quantum-Wire Lasers

InGaAs/AlGaAs 양자선 래이저에서 관찰된 이상 방출 스펙트럼

Distributed optical feedback by gain coupling in V-groove quantum-wire lasers is investigated using InGaAs/AlGaAs active materials grown by metalorganic chemical vapor deposition (MOCVD). In order to avoid grating overgrowth during the fabrication of DFB structures, a newly developed constant MOCVD growth method is employed. Gain anisotropy in emission spectra near Bragg wavelength, resulting from optical feedback along the DFB direction, is clearly observed at room temperature.