Acta Optica Sinica, Volume. 42, Issue 8, 0814001(2022)
Study on Grating-controlled Emission Characteristics of Horizontal Cavity Surface Emitting Distributed Feedback Laser
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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
Table 1. Parameter optimization
View tableTable 1. Parameter optimization
Parameter Surface transmittance (>0.06) Reflectivity (>0.005) DFB grating duty cycle 0.55--0.73 0.63--0.71 DFB grating period length - Wavelength tuning DFB grating etching depth 0.1--0.3 μm 0.29--0.3 μm DFB grating tooth angle 70°--91° 87°--90° DBR duty cycle 0.36--0.67 0.38--0.51 DBR material refractive index 3.26--3.32 3.26--3.27 DBR layer number Enhance surface emitting -
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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
Paper Information
Category: Lasers and Laser Optics
Received: Sep. 30, 2021
Accepted: Nov. 4, 2021
Published Online: Mar. 30, 2022
The Author Email: Zou Yonggang (zouyg@cust.edu.cn)
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