The theoretical and experimental wavelength sensitivity coefficients of pressure tunable fiber Bragg grating could reach 0.2246 nm/MPa and 0.2218 nm/MPa,with tunable range being 1.35 nm in a pressure range 0-6MPa.

• 理论和实验结果表明；压强调谐光纤布拉格波长的灵敏度系数的理论值与实验值分别为0.；2246 nm/MPa、0