[TuD1] Advanced Lasers II

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[TuD1-3] High Performance O-Band Quantum Dot Distributed Feedback Laser Based on Laterally Coupled Grating

○Anyao Zhu¹, Zhengqing Ding¹, Ying Yu¹, Siyuan Yu¹ (1. Sun Yat-sen University (China))

Keywords:

Semiconductor lasers,optical amplifiers,and light emitting diodes,Quantum well,quantum dot,and nano-structured photonic devices

We present an O-band QD LC-DFB laser with an output power of 70 mW at 25°C. The device demonstrates single-mode operation across the full injection current range (50-250 mA) over a temperature span of 20-100℃, achieving a maximum SMSR of 61 dB, a RIN of -158 dB/Hz at 15 GHz and a 1 dB compression point of 25 dBm under 3 GHz RF modulation.