@article{tondusson:hal-01278021, TITLE = {{Coherent combination of four laser beams in a multi-axis Fourier cavity using a diffractive optical element}}, AUTHOR = {Tondusson, Marc and Froehly, Claude and Kerm{\`e}ne, Vincent and Vampouille, Michel}, URL = {https://unilim.hal.science/hal-01278021}, JOURNAL = {{Journal of Optics A: Pure and Applied Optics}}, PUBLISHER = {{IOP Publishing}}, VOLUME = {3}, YEAR = {2001}, HAL_ID = {hal-01278021}, HAL_VERSION = {v1}, }