[3] Nguyen Q V,Dibble R W. High-resolution oxygen absorption spectrum obtained with an external cavity continuously tunable diode laser.Opt Lett,1994,(19):2134~2135
[4] Arie A,Lissak B,Tur M. Static fiber-bragg grating strain sensing using frequency-locked lasers.J Lightwave Technol,1999,(17):1849~1853
[5] De Labachelerie M, Latrasse C, Ceraz P. The frequency control of diode lasers.J Phys Ⅲ,1992,(2):1557~1580
[6] Shirley J H, Moduiation transfer processes in optical heterodyne saturation spectroscopy.Opt Lett,1982,(7):537~539