论文信息 - Design of a refractive optical system that converts a Gaussian beam to a ring shaped pattern beam

Design of a refractive optical system that converts a Gaussian beam to a ring shaped pattern beam

In this paper, a system of two lenses is designed, which can efficiently convert a collimated Gaussian beam to a ring shaped pattern beam. The surfaces distribution of the two lenses is determined by using the energy conservation and the constant optical path-length condition. The design consideration is analyzed in detail. The intensity distribution of the ring shaped pattern beam can be controlled. The reshaping effect has been numerically simulated with Fourier optics methods. The influences of the waist change and decenter of the Gaussian beam have also been discussed in detail. In addition, the phase profile has been calculated after laser reshaping. The result is verified experimentally by using the phase only liquid crystal spatial light modulator (LC-SLM).

[1] Yangjian Cai,et al. Propagation of hollow Gaussian beams through apertured paraxial optical systems. , 2006, Journal of the Optical Society of America. A, Optics, image science, and vision.

[2] C. Liu,et al. Study of singular radius and surface boundary constraints in refractive beam shaper design. , 2008, Optics express.

[3] Yangjian Cai,et al. Hollow Gaussian beams and their propagation properties. , 2003, Optics letters.

[4] J. Goodman. Introduction to Fourier optics , 1969 .

[5] C. M. Jefferson,et al. Design and performance of a refractive optical system that converts a Gaussian to a flattop beam. , 2000, Applied optics.

[6] D L Shealy,et al. Refractive optical systems for irradiance redistribution of collimated radiation: their design and analysis. , 1980, Applied optics.

[7] Daniel J Heinzen,et al. 1.5% root-mean-square flat-intensity laser beam formed using a binary-amplitude spatial light modulator. , 2009, Applied optics.

[8] Matthew Pasienski,et al. A high-accuracy algorithm for designing arbitrary holographic atom traps. , 2007, Optics express.

[9] Yangjian Cai,et al. Generation of a high-quality partially coherent dark hollow beam with a multimode fiber , 2008, 2008 IEEE PhotonicsGlobal@Singapore.