[23p-11E-1~9] CS.4 Code-sharing Session of 3.10 & 3.12

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[23p-11E-8] 1550 nm-Band Distributed Bragg Reflector Quantum Dot Lasers Using Compositional Intermixing Technique by Ion Implantation

〇Ryota Yabuki¹, Atsushi Matsumoto², Koichi Akahane², Siim Heinsalu¹, Ayako Higuchi¹, Yuichi Matsushima¹, Hiroshi Ishikawa¹, Katsuyuki Utaka¹ (1.Waseda Univ., 2.NICT)

Keywords:

Quantum-Dot,Wavelength tunable laser

Digital coherent communications are becoming increasingly popular, and the demand for wavelength tunable light sources with low power consumption, narrow linewidth, and high-temperature operation for this purpose is further increasing. Against this background, quantum dot (QD) lasers operating in the 1550 nm band are expected to be applied to wavelength tunable light sources. In distributed Bragg reflection (DBR) lasers, one of the wavelength tunable light sources, it is essential to form a passive waveguide in addition to the active layer. In this paper, we report on the fabrication of a DBR laser using composition mixing technology (QDI) and its low-threshold single-mode CW operation.