[ThF1] Semiconductor Lasers

[ThF1-2] Distributed Feedback Lasers with Two-layer Phase-shifted Moiré Gratings

〇Yen-Chieh Wang¹, Rih-You Chen¹, Ping-Feng Hsieh¹, Yung-Sheng Wang², Wei Lin², Yi-Jen Chiu¹, Yung-Jr Hung¹ (¹National Sun Yat-sen Univ., Taiwan, ²LandMark Optoelectronics Corporation, Taiwan)

Keywords:Semiconductor lasers, Moiré gratings, Laser interference lithography

We demonstrate DFB lasers with a holographic-generated two-layer moiré grating. The resulting DFB lasers exhibit stable single wavelength operation (> 40 dB SMSR) at its Bragg wavelength and superior static and dynamic device performance.