Rui Wang, Yonggang Zou, Kun Tian, Ruidong Li, Hui Tang, Jie Fan. Study on Grating-controlled Emission Characteristics of Horizontal Cavity Surface Emitting Distributed Feedback Laser[J]. Acta Optica Sinica, 2022, 42(8): 0814001
- Acta Optica Sinica
- Vol. 42, Issue 8, 0814001 (2022)
Fig. 1. Schematic diagram of surface emitting DFB laser
Fig. 2. Schematic diagram of second-order grating
Fig. 3. Influence of DFB grating duty cycle on emission characteristics. (a) Surface transmittance; (b) reflectivity; (c) variation of coupling coefficient at 983 nm
Fig. 4. Influence of DFB grating period length on emission characteristics. (a) Reflectivity; (b) coupling coefficient
Fig. 5. Influence of DFB grating etching depth on emission characteristics. (a) Surface transmittance; (b) reflectivity; (c) variation of coupling coefficient at 983 nm
Fig. 6. Influence of DFB grating tooth angle on emission characteristics. (a) Surface transmittance; (b) reflectivity; (c) variation of coupling coefficient at 983 nm
Fig. 7. Influence of DBR duty cycle on emission characteristics. (a) Surface transmittance; (b) reflectivity; (c) variation of coupling coefficient at 983 nm
Fig. 8. Influence of DBR material refractive index on emission characteristics. (a) Surface transmittance; (b) reflectivity; (c) variation of coupling coefficient at 983 nm
Fig. 9. Influence of DBR layer number on emission characteristics. (a) Surface transmittance; (b) reflectivity
Fig. 10. Spectrum after optimization of structural parameters. (a) Surface transmittance; (b) reflectivity; (c) optical field
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Table 1. Parameter optimization
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