InGaN MQW laser diode with integrated intracavity electroabsorption modulator

Abstract

Summary form only given. We demonstrate a two-section InGaN multiple-quantum-well (MQW) laser diode comprised of an amplifier section and a monolithically integrated electroabsorption (EA) modulator. Modulator and gain sections are electrically separated by a narrow dry etched trench, but are optically coupled and share the same InGaN MQW active region. The basic concept of the device is to utilize the strong built-in piezoelectric fields in the InGaN MQW active region to achieve the necessary wavelength offset between the emission wavelength of the amplifier section and the absorption edge of the EA modulator.