Fig. 1. Structure diagram of F-P cavity based on DBG and FBG

Fig. 2. Energy schematic of a two-level system of DBG

Fig. 3. Reflection spectra of DBG varying with different lengths of EDF and Rabi frequencies of the probe field.a1: Ωp=1.0×105Γ21,L1=0.2 m; b1: Ωp=1.5×105Γ21, L1=0.2 m; c1: Ωp=2.0×105Γ21, L1=0.2 m; d1: Ωp=2.5×105Γ21, L1=0.2 m; a2: Ωp=1.0×105Γ21, L1=0.35 m; b2: Ωp=1.5×105Γ21, L1=0.35 m; c2: Ωp=2.0×105Γ21, L1=0.35 m; d2: Ωp=2.5×105Γ21, L1=0.35 m; a3: Ωp=1.5×105Γ21, L1=0.5 m; b3: Ωp=2.0×105Γ21, L1=0.5 m; c3: Ωp=2.5×105Γ21, L1=0.5 m; d3: Ωp=3.0×105Γ21, L1=0.5 m

Fig. 4. Experimental setup used to measured DBG

Fig. 5. Measured signals of DBG with different lengths of EDF and input powers

Fig. 6. Reflection spectra of the F-P cavity varying with different Rabi frequencies of the probe field.a: Ωp=0.5×107; b: Ωp=1.0×107; c: Ωp=2.0×107; d: Ωp=2.5×107

Fig. 7. Reflection spectra of the F-P cavity varying with different lengths of EDF. a: L1=0.2 m; b: L1=0.3 m; c: L1=0.4 m; d: L1=0.5 m

Fig. 8. Reflection spectra of the F-P cavity varying with different refractive index modulation depths of Bragg grating. a: δn=0.305×10-4, R=0.3; b: δn=0.435×10-4, R=0.5; c: δn=0.598×10-4, R=0.7; d: δn=0.898×10-4, R=0.9

Fig. 9. Reflection spectra of the F-P cavity varying with different cavity lengths. (a) L=0.1 m; (b) L=0.2 m; (c) L=0.3 m ;(d) L=0.4 m

Table 1. Parameters used for DBG and F-P cavity