We report here for the first time fabrication and characterisation of long period fiber gratings with periods of several millimetres. The resonant loss peaks of these gratings are generated from the coupling of the forward propagating guided core mode to the cladding modes of fundamental and harmonic orders. These ultral-long-period fiber gratings may find some applications in optical fiber communication and sensing.
|Title of host publication||Proceedings 27th European Conference on Optical Communication|
|Number of pages||2|
|Publication status||Published - 1 Dec 2001|
|Event||27th European Conference on Optical Communication - Amsterdam, United Kingdom|
Duration: 30 Sep 2001 → 4 Oct 2001
|Conference||27th European Conference on Optical Communication|
|Period||30/09/01 → 4/10/01|