Wenfu Yu, Xuyi Zhao, Shixian Han, Antian Du, Ruotao Liu, Chunfang Cao, Jinyi Yan, Jin Yang, Hua Huang, Hailong Wang, Qian Gong, "InAs/GaAs quantum dot laterally coupled distributed feedback lasers at 1.3 μm," Chin. Opt. Lett. 21, 011402 (2023)
- Chinese Optics Letters
- Vol. 21, Issue 1, 011402 (2023)
Fig. 1. SEM image of the LC-DFB laser. (a) Cross-section view. (b) Top view.
Fig. 2. (a) I-V-P characteristic of the LC-DFB laser in CW mode at 20°C. (b) The relationship between peak wavelength and current from 220 mA to 280 mA of the LC-DFB laser.
Fig. 3. (a) Characteristic temperature T0 calculated under CW mode from 10°C to 30°C. (b) Variation of external efficiency calculated under CW mode from 10°C to 30°C.
Fig. 4. (a) Spectra of the LC-DFB laser with injection current from 230 mA to 350 mA with a step of 10 mA at 20°C. (b) Variation of emission wavelength and SMSR versus current at different temperatures.
Fig. 5. Lasing spectrum of the LC-DFB laser with high SMSR ratio.
Fig. 6. Spectra of the LC-DFB laser arrays in CW mode at 20°C.
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