Fangyuan Meng, Hongyan Yu, Xuliang Zhou, Mengqi Wang, Yejin Zhang, Wenyu Yang, Jiaoqing Pan. Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7 μm[J]. Journal of Semiconductors, 2022, 43(6): 062302
- Journal of Semiconductors
- Vol. 43, Issue 6, 062302 (2022)
Fig. 1. (Color online) The simulation parameters of the WG-FP hybrid cavity laser.
Fig. 2. (Color online) The mode Q factor variation with different mode wavelength when (a) Im(n WG) = Im(n FP)= 0. (b) Im(nWG) decreases from 0.00003 to –0.00003 while Im(n FP) = 0.
Fig. 3. The mode center wavelengths variation with the change of the real part of the square microcavity refractive index Δn WG.
Fig. 4. (Color online) Fabrication process of the WG-FP hybrid cavity laser.
Fig. 5. (Color online) (a) Cross-sectional view SEM image after ICP etching. (b) The microscope image of the fabricated WG-FP hybrid cavity laser.
Fig. 6. (Color online) (a) Curves of light power variation with I FP at the I WG are 0, 2, 5, and 10 mA. (b) Lasing spectrum measured for the laser under I FP = 80 mA, I WG = 70 mA.
Fig. 7. (Color online) Lasing characteristics with the variations of I FP and I WG for the laser. Lasing spectra (a) variation withI WG atI FP = 80 mA, (b) variation withI FP atI WG = 35 mA. Dominant lasing mode wavelengths and corresponding SMSRs (c) variation with I WG atI FP = 80 mA, (d) variation withI FP at I WG = 35 mA, respectively.
Fig. 8. (Color online) Superimposed lasing spectra with a wavelength continuous tuning range of 12.52 nm by varyingI FP and I WG simultaneously.
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