Second-order Bragg gratings in single-mode chalcogenide fibres
- Resource Type
- Authors
- Karen Asatryan; Réal Vallée; Oleg I. Medvedkov; T M Galstian; V. G. Plotnichenko; Sergei A Vasil'ev; M Bernier; Evgenii M Dianov; P I Gnusin
- Source
- Quantum Electronics. 41:465-468
- Subject
- Diffraction
PHOSFOS
Materials science
Fabrication
business.industry
Chalcogenide
Single-mode optical fiber
Physics::Optics
Statistical and Nonlinear Physics
Cladding mode
Cladding (fiber optics)
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
chemistry.chemical_compound
Optics
chemistry
Fiber Bragg grating
Electrical and Electronic Engineering
business
- Language
- ISSN
- 1468-4799
1063-7818
Bragg gratings with a second-order resonance wavelength in the near-IR spectral region have been inscribed into single-mode chalcogenide (As2S3) glass fibre by a He — Ne laser beam using a configuration typical of Bragg grating fabrication in germanosilicate fibre, with the use of a phase mask that ensures effective diffraction of the writing light into the +1 and -1 orders. The spectra of the inscribed gratings show no resonances due to cladding mode excitation because the cladding material is photosensitive.