Jie Fan, Chunyang Gong, Jingjing Yang, Yonggang Zou, Xiaohui Ma. Research Progress of Distributed Bragg Reflector Semiconductor Lasers[J]. Laser & Optoelectronics Progress, 2019, 56(6): 060003
- Laser & Optoelectronics Progress
- Vol. 56, Issue 6, 060003 (2019)
Fig. 1. Structure of typical DBR-LD
Fig. 2. Reflectance spectrum of DBR grating
![Linewidth characteristics of single longitudinal mode DBR-LD at 1064 nm[24]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Linewidth characteristics of single longitudinal mode DBR-LD at 1064 nm[24]
Fig. 4. Schematic of epitaxial structure of 635 nm DBR-LD [25]
Fig. 5. 3D structural diagram of DBR laser[29]
Fig. 6. DBR grating used for providing both high-reflection and optical confinement[31]
Fig. 7. 3D structural diagram of grooved single-mode laser[32]
Fig. 8. Ridge-curved waveguide grooved laser[33]. (a) 3D structural diagram; (b) SEM image of etched groove
Fig. 9. Working principle of resonant coupling cavity[35]
Fig. 10. Structural diagram of dual-wavelength DBR-LD[35]
Fig. 11. Dual-wavelength high-order DBR-LD [36]. (a) Structural diagram; (b) spectra at different injection currents
Fig. 12. Structural diagram of dual-mode DBR-LD[37]
Fig. 13. Structural diagram of Y-branched dual-wavelength laser[38]
Fig. 14. Two different types of dual-wavelength diode lasers[41]. (a) Two DBR-RW-LD mini-array; (b) Y-branched DBR laser
Fig. 15. Structural diagram of tunable DBR-LD [44]
Fig. 16. Butt-joint interface between gain section and DBR grating section[45]
Fig. 17. Two-stage DBR-LD [47]. (a) Schematic; (b) spectrum of 13-channel wavelength measured when only DBR current is tuned
Fig. 18. Structural distribution of SG
Fig. 19. SG with linear structure[59]
Fig. 20. P-U-I curve when DBR grating tapered LD structure is included[61]
Fig. 21. Lateral layout of DBR tapered LD with tapered grating[64]
Fig. 22. Three lateral layouts of DBR tapered lasers[65]
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Table 1. Research results of tunable DBR-LD at home and abroad
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