[12p-W611-1~11] 3.13 Semiconductor optical devices

[12p-W611-2] Lateral coupling integration of VCSEL and VCSEL amplifier with cutoff structure

〇Masashi Takanohashi¹, Keisuke Shimura¹, Xiaddong Gu¹, Masanori Nakahama¹, Akihiro Matsutani², Takahiro Sakaguchi¹, Fumio Koyama¹ (1.Tokyo Tech. FIRST, 2.Tokyo Tech.Tech Dept)

Keywords:VCSEL

High power and high beam quality lasers are required for laser processing and optical sensors such as LiDAR. In our laboratory, we achieved an output of 260 mW with a slow-light optical amplifier, but an external light source is used as a light source. Lateral integration using VCSEL as light source is possible but low light coupling efficiency is a problem. In this report, we propose and fabricate a high efficiency lateral coupling using optical confinement effect due to cutoff wavelength difference and report on the coupling power.