Quiroga Mellado, Juan AntonioServín Guirado, ManuelEstrada, Julio César2023-06-202023-06-202009-02-151. D. Malacara, M. Servin, and Z. Malacara, Interferogram Analysis for Optical Testing (Marcel Dekker, 1998). 2. J. H. Bruning, D. R. Herriott, J. E. Gallagher, D. P. Rosenfeld, A. D. White, and D. J. Brangaccio, Appl. Opt. 13, 2693 (1974). 3. J. C. Wyant, Appl. Opt. 14, 2622 (1975). 4. C. J. Morgan, Opt. Lett. 7, 368 (1982). 5. J. Schwider, R. Burow, K.-E. Elssner, J. Grzanna, R. Spolaczyk, and K. Merkel, Appl. Opt. 22, 3421 (1983). 6. J. E. Greivenkamp, Opt. Eng. (Bellingham) 23, 350 (1984). 7. Y.-Y. Cheng and J. C. Wyant, Appl. Opt. 24, 3049 (1985). 8. C. Ai and J. C. Wyant, Appl. Opt. 26, 1112 (1987). 9. P. Hariharan, Appl. Opt. 26, 2506 (1987). 10. P. Hariharan, B. F. Oreb, and T. Eiju, Appl. Opt. 26, 2504 (1987). 11. K. Freishlad and C. L. Koliopoulos, J. Opt. Soc. Am. A 7, 542 (1990).0146-959210.1364/OL.34.000413https://hdl.handle.net/20.500.14352/43981© 2009 Optical Society of America.We show a practical way for building wideband phase-shifting algorithms for interferometry. The idea presented combines first- and second-order quadrature filters to obtain wideband phase-shifting algorithms. These first- and second-order quadrature filters are analogous to the first- and second-order filters commonly used in communications engineering, named building blocks. We present a systematic way to develop phase-shifting algorithms with large detuning robustness or large bandwidth. In general, the approach presented here gives a powerful frequency analysis and design tool for phase-shifting algorithms robust to detuning for interferometry.engjournal articlehttp://dx.doi.org/10.1364/OL.34.000413http://www.opticsinfobase.org/open access535OpticsÓptica (Física)2209.19 Óptica Física