Luminescent optical fibers in sensing

摘要: The development of fibers doped with materials through which luminescence is generated has a long history, follows upon the original proposal by Snitzer [1] in early 1960s use an optical fiber geometry for lasers and amplification, employing 300 μm core diameter neodymium fiber. Subsequent this concept been major reason production range different types fiber, appropriate to show fluorescence. Only ions that belong lanthanide group rare earths have observed allow laser oscillation geometry, as these possess number distinct features make them attractive medium. These benefits apply equally (but under less rigorous conditions) their fluorescent sources where need generate stimulated emission not present, so strong, noncoherent light arising from spontaneous primary output. however, provides very useful constraint on propagation beam, intense directional can be achieved fluorescing when monitoring emerging at either end. discussion luminescent sensing chapter excludes considerable amplifiers, or other purposes, such communications sensors themselves. Both topics discussed some detail, former Langford [2] latter Kim [3]. Further, phenomena are produced nonlinear effects, typically Raman Brillouin scattering, also section, again they considered extensively elsewhere, example work Grattan Zhang [4] Rogers [5].