PDF Tunable Optical filters Using Etched Polarization Maintaining Fiber Hybrid Sagnac Interferometer . Iraqi Journal of Laser, [S. l.], v. 21, n. 1, p. 1–9, 2022. DOI: 10.31900/ijl.v21i1.300. Disponível em: https://ijl.uobaghdad.edu.iq/index.php/IJL/article/view/300.. Acesso em: 18 may. 2024.