In this thesis, we have successfully prepared the (100)-oriented Y0.7Ca0.3BCO thin films by pulsed laser deposition (PLD). We confirmed purity of(100) Y0.7Ca0.3BCO thin film by measurement of X-ray andΦ-scan. Through SEM and AFM , We can check the roughness of thin film. Besides, We can understanding the relationship between different oxygen containment of the (100)Y0.7Ca0.3BCO film and Curie temperature by using the encapsulated bulk annealing method, i.e. overdoped, optimal doped and underdoped sample. The series of data are extracted from anisotropic ultrafast dynamics which is probed by polarized femtosecond spectroscopy. We obtained the complete data by changing the oxygen containment and temperature at only one sample.