Two kind of polymer films can be used in laser field were prepared. First, the carbazole-based bi-functional photorefractive polyacrylates with different NLO nitroazobenzene groups ratios were prepared and characterized (NLO groups mole ratio: 18.50%, 24.80%, 44.66%). The results indicate that the content of NLO groups severely influenced the photorefractive effect of the polymers. Even the polymers with different ratios of NLO groups all show low glass transition temperatures around 60oC and present photorefractive effect under the conditions of zero electric field, without any addition agent or pre-poling, the moderate content of NLO groups (24.80%) still means higher gain coefficient (185cm-1). When the content of NLO groups is too low (18.50%), the weak orientation strengthen polarization effect result in the lower PR effect (75 cm-1).But if the content of NLO groups is too high (44.66%), the NLO groups intend to aggregation, weaken the orientation strengthen and polarization effect, the PR effect is still weak (66m-1). The polymer film with 24.80% NLO groups was used to correct the laser wavefront distortion through a degenerate four-wave mixing beam path, the result indicates the wavefront correction is about 0.1. Second, the fluorinated ethylene propylene (FEP) film (Ø90mm) was used as laser debris shields to protect the laser system from the debris mitigation. The optical properties of FEP film were investigated. The results indicate that the transmittance of 25m FEP film at 355nm is about 93%, and the wavefont error of laser through the thin film is about 0.33The damage test was performed with a 355nm neodymium: Yttrium aluminum garnet (Nd: YAG) laser with a 9.3ns pulse duration, and it is found that the highest non-damage fluence threshold for FEP film is 10.35J/cm2. All these properties of FEP film are comparable with or better than fused silica glass. The final experiment result indicates that FEP film can be used as the laser debris shields.