[16a-316-1~11] 3.14 Optical control devices and optical fibers

[16a-316-10] Wavelength-Tunable External Cavity Laser Using an InAs Quantum Dot Gain Chip and a Planar Lightwave Circuit for T-band Communication

〇Yudai Okuno¹, Katsumi Yoshizawa², Yasunori Tomomatsu³, Hiroyuki Tsuda¹ (1.Keio Univ., 2.Pioneer Micro Technology, 3.Koshinkogaku)

Keywords:T-band, tunable laser, quantum dot

We developed a wavelength-tunable external cavity laser for T-band (1000-1260 nm) WDM communication. The laser consists of an InAs QD gain chip and an AWG with optical switches. The laser can be tuned from 1049.7 nm to 1071.9 nm, and an output power of 1.2 mW at an injection current of 200 mA and a threshold current of 79 mA was obtained.