Zhifang Du, Jie Fan, Haizhu Wang, Yonggang Zou, Xiaohui Ma. Modulation Effect of Combined Grating on Lateral Modes of Semiconductor Laser[J]. Chinese Journal of Lasers, 2023, 50(23): 2301011
- Chinese Journal of Lasers
- Vol. 50, Issue 23, 2301011 (2023)
Fig. 1. CDBR-LD device and structure parameters. (a) 3D structure diagram of CDBR-LD; (b) picture of CDBR-LD single tube; (c) structure parameters of combined grating and ridge waveguide; (d) photo of CDBR-LD after packaging
Fig. 2. Influence of hybrid grating region on lateral mode of each order of incident light. (a) TE00; (b) TE10; (c) TE20; (d) TE30
Fig. 3. Influence of hybrid grating region on each order lateral mode of feedback light. (a) TE00; (b) TE10; (c) TE20; (d) TE30
Fig. 4. Influence of WG on energy transmittance of each order lateral mode with energy transmittance difference between TE00 and TE20 shown in inset. (a) Incident light; (b) feedback light
Fig. 5. Far-field spots and energy diagrams of DBR-LD and CDBR-LD at different currents. (a) DBR-LD, injection current of 0.7 A; (b) CDBR-LD, injection current of 0.7 A; (c) DBR-LD, injection current of 1.0 A; (d) CDBR-LD, injection current 1.0 A
Fig. 6. Spectra of DBR-LD and CDBR-LD under different injection currents. (a) DBR-LD; (b) CDBR-LD
Fig. 7. P-I curves of DBR-LD and CDBR-LD
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