Holographically written reflective polarisation filter in single-mode optical fibres

• Main Authors: Kamal, A. (Author), Kanellopoulos, S.E (Author), Archambault, J.L (Author), Russell, P.St.J (Author), Handerek, V.A (Author), Rogers, A.J (Author)
• Format: Article
• Language: English
• Published: 1992.
• Subjects: Article
• Online Access: Get fulltext

A new type of internally written grating filter is proposed and demonstrated in single-mode optical fibers. A photoinduced rocking birefringence is created by polarization interference between two counterpropagating and orthogonal linear-polarization modes at 514.5 nm. This birefringent grating has the correct submicrometer pitch for efficient phase-matched reflection of a linearly polarized mode into the orthogonally polarized counter-propagating mode. The phenomenon represents a new form of holography in which the image (the orthogonal counterpropagating mode) is reconstructed by scattering off a hologram consisting of a periodic birefringence.