Chinese Physics B, Volume. 29, Issue 8, (2020)
Polarization control and tuning efficiency of tunable vertical-cavity surface-emitting laser with internal-cavity sub-wavelength grating
We design an 850 nm tunable vertical-cavity surface-emitting laser (VCSEL) structure using an internal-cavity sub-wavelength grating. The use of such a tuning structure allows for wider wavelength tuning range and more stable single-polarization as compared to conventional tunable VCSELs. The features of the internal-cavity grating effect on the wavelength tuning and polarization characteristics of the tunable VCSEL are analyzed. The simulation results show that the largest wavelength tuning range achieves 44.2 nm, and the maximum orthogonal polarization suppression ratio (OPSR) is 33.4 dB (TE-type) and 38.7 dB (TM-type).
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Xiao-Long Wang, Yong-Gang Zou, Zhi-Fang He, Guo-Jun Liu, Xiao-Hui Ma. Polarization control and tuning efficiency of tunable vertical-cavity surface-emitting laser with internal-cavity sub-wavelength grating[J]. Chinese Physics B, 2020, 29(8):
Received: Jan. 14, 2020
Accepted: --
Published Online: Apr. 29, 2021
The Author Email: Zou Yong-Gang (mxh@cust.edu.cn)