Xuhai Jiang, Chuanyi Tao, Yan Zhao, Jianjun Xiao, Junhua Cheng, Jing Zhang. Two-Wave Mixing Gain Characteristics of Photorefractive InP∶Fe Under External DC Electric Field[J]. Acta Optica Sinica, 2021, 41(12): 1219001
- Acta Optica Sinica
- Vol. 41, Issue 12, 1219001 (2021)
Fig. 1. Photorefractive InP∶Fe two-wave mixing scheme
Fig. 2. Theoretical curves of gain coefficient varying with pump intensity at different temperatures when θ=5° and E0=5 kV·cm-1. (a) 290 K; (b) 298 K; (c) 306 K; (d) 314 K
Fig. 3. Theoretical curves of gain coefficient varying with pump intensity under different weak applied electric fields when θ=5° and T=298 K. (a) 0 kV·cm-1; (b) 0.2 kV·cm-1; (c) 0.4 kV·cm-1; (d) 0.6 kV·cm-1
Fig. 4. Theoretical curves of gain coefficient varying with pump intensity under different applied electric field when θ=5° and T=298 K. (a) 2 kV·cm-1; (b) 3 kV·cm-1; (c) 4 kV·cm-1; (d) 5 kV·cm-1
Fig. 5. Theoretical curves of gain coefficient varying with applied electric field when θ=5°, T=298 K, and Ip=218 mW·cm-2
Fig. 6. Theoretical curves of gain coefficient varying with incident angle under different applied electric fields when T=298 K and Ip=218 mW·cm-2. (a) 2 kV·cm-1; (b) 4 kV·cm-1; (c) 5 kV·cm-1
Fig. 7. Theoretical curves of gain coefficient varying with incident angle under different pump light intensities when T=298 K and E0=5 kV·cm-1. (a) 90 mW·cm-2; (b) 150 mW·cm-2; (c) 218 mW·cm-2
Fig. 8. Experimental setup of InP∶Fe two-wave coupling under external electric field
Fig. 9. Variation curves of experimental gain coefficient with pump beam intensity under different applied electric fields when T=298 K and θ=5°. (a) 2.6 kV·cm-1; (b) 3.8 kV·cm-1; (c) 5 kV·cm-1
Fig. 10. Variation curve of experimental gain coefficient with applied electric field when T=298 K, Ip=345 mW·cm-2, and θ=5°
Fig. 11. Variation curve of experimental gain coefficient with incident angle when T=298 K, Ip= 345 mW·cm-2, and E0=5.1 kV·cm-1
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Table 1. InP∶Fe parameters relevant to photorefractive effect
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