A method of decomposing a dual-directional laser beam into a forward propagating field and a backward propagating field for an apertured plano-concave cavity is presented. An intra-cavity aperture is a simple method of laser beam shaping as higher-order transverse modes are discriminated. Two fundamental resonator theories, namely, Fox-Li and Laguerre-Gaussian decomposition are used in the determination of the respective beam profiles at a specific plane. A preliminary set-up is characterized for Gaussian propagation in an attempt to verify that the cavity is viable. A comparison of experimental data with the theories is presented.
Reference:
Naidoo, D, Forbes, A et al. 2011. Intra-cavity decomposition of a dual-directional laser beam. Laser Resonators and Beam Control XIII, San Francisco, California, USA, 23-25 January 2011
Naidoo, D., Forbes, A., Aït-Ameur, K., & Fromager, M. (2011). Intra-cavity decomposition of a dual-directional laser beam. SPIE. http://hdl.handle.net/10204/5208
Naidoo, Darryl, A Forbes, K Aït-Ameur, and M Fromager. "Intra-cavity decomposition of a dual-directional laser beam." (2011): http://hdl.handle.net/10204/5208
Naidoo D, Forbes A, Aït-Ameur K, Fromager M, Intra-cavity decomposition of a dual-directional laser beam; SPIE; 2011. http://hdl.handle.net/10204/5208 .
