Very broad reflection bandwidth (44 nm) chirped fibre gratings andnarrow bandpass filters produced by the use of an amplitude mask |
| |
Authors: | Farries MC Sugden K Reid DCJ Bennion I Molony A Goodwin MJ |
| |
Institution: | GEC Marconi Mater. Technol. Ltd., Towcester; |
| |
Abstract: | Chirped gratings with very broad reflection bandwidths up to 44 nm and high reflectivity have been produced holographically in boron-codoped and standard telecommunications fibres which have been hydrogen-soaked. A 2 nm wide transmission band has been produced within the broad reflection band by use of an amplitude mask during grating exposure |
| |
Keywords: | |
|