• Chinese Optics Letters
  • Vol. 21, Issue 1, 011402 (2023)
Wenfu Yu1、2, Xuyi Zhao1、2, Shixian Han1、2, Antian Du3, Ruotao Liu1、2, Chunfang Cao1, Jinyi Yan1, Jin Yang1, Hua Huang1, Hailong Wang3, and Qian Gong1、2、*
Author Affiliations
  • 1Key Laboratory of Terahertz Solid State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu 273165, China
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    DOI: 10.3788/COL202321.011402 Cite this Article Set citation alerts
    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[J]. Chinese Optics Letters, 2023, 21(1): 011402 Copy Citation Text show less
    SEM image of the LC-DFB laser. (a) Cross-section view. (b) Top view.
    Fig. 1. SEM image of the LC-DFB laser. (a) Cross-section view. (b) Top view.
    (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. 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.
    (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. 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.
    (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. 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.
    Lasing spectrum of the LC-DFB laser with high SMSR ratio.
    Fig. 5. Lasing spectrum of the LC-DFB laser with high SMSR ratio.
    Spectra of the LC-DFB laser arrays in CW mode at 20°C.
    Fig. 6. Spectra of the LC-DFB laser arrays in CW mode at 20°C.
    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[J]. Chinese Optics Letters, 2023, 21(1): 011402
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