10.1117/12.2248314ISTPCen Z., 2009, OPTICAL MANUFACTURE, V2, P63; Li L., 1997, OPTICAL TECHNOLOGY, V5, P26; Shi L, 2009, OPT EXPRESS, V17, P21530, DOI 10.1364/OE.17.021530; Wang SW, 2015, OPT EXPRESS, V23, P5532, DOI 10.1364/OE.23.005532; Zhang W, 2006, P SOC PHOTOOPT INS, V6149, P14921, DOI 10.1117/12.674264; Zhang W.L., 2005, THESIS6International Workshop on Information Data Storage / 10th International Symposium on Optical Storage58288499818Proc.SPIE2016offaxis parabolic lenses; wavefront aberration; temperature variation; location errorFABRICATION; GRATINGSSESE98989998189818ZIn this work, an optical system with large diameter offaxis parabolic lenses was adopted to achieve diffraction gratings by laser interference exposure. The diffraction wavefront aberration caused by temperature variations was simulated using ZEMAX. Through theoretical analysis and optical simulation, it is proved that the diffraction wavefront aberration of holographic grating caused by the pinhole's location errors (it is assumed that when the displacement of pinhole exists along one axis, the locations of the pinhole along the other two orthogonal axes are in a state of precise adjustment) is much larger when the displacement occurs along z axis than along the other two axes, and the diffraction wavefront aberration is the smallest when the displacement occurs along x axis. If the ambient temperature changes by 1 degree, the PV value is 0.0631 lambda when the location of the pinhole changes by 0.121mm along z axis, 0.0034 lambda or 0.0672 lambda when the location of the pinhole changes by 0.002mm along x axis or 0.03mm along y axis. To reach the diffraction limit (that means the PV value is 0.25 lambda), the decentering value of the pinhole along z axis should be less than 0.0341mm. In conclusion, the position error along z axis is an important factor to influence the PV value of diffraction grating, and the effect of temperature on the PV value of diffraction grating can be neglected.2016 International Workshop on Information Data Storage and Tenth International Symposium on Optical StorageInfluence of temperature on the optical system with large diameter offaxis parabolic lenses会议论文EnglishSu, Yaru; Ruan, Hao; Liu, Jie4012098180Z WOS:000389277600036

In this work, an optical system with large diameter offaxis parabolic lenses was adopted to achieve diffraction gratings by laser interference exposure. The diffraction wavefront aberration caused by temperature variations was simulated using ZEMAX. Through theoretical analysis and optical simulation, it is proved that the diffraction wavefront aberration of holographic grating caused by the pinhole's location errors (it is assumed that when the displacement of pinhole exists along one axis, the locations of the pinhole along the other two orthogonal axes are in a state of precise adjustment) is much larger when the displacement occurs along z axis than along the other two axes, and the diffraction wavefront aberration is the smallest when the displacement occurs along x axis. If the ambient temperature changes by 1 degree, the PV value is 0.0631 lambda when the location of the pinhole changes by 0.121mm along z axis, 0.0034 lambda or 0.0672 lambda when the location of the pinhole changes by 0.002mm along x axis or 0.03mm along y axis. To reach the diffraction limit (that means the PV value is 0.25 lambda), the decentering value of the pinhole along z axis should be less than 0.0341mm. In conclusion, the position error along z axis is an important factor to influence the PV value of diffraction grating, and the effect of temperature on the PV value of diffraction grating can be neglected.
