Very broad reflection bandwidth (44 nm) chirped fibre gratings andnarrow bandpass filters produced by the use of an amplitude mask |
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| Authors: | Farries M.C. Sugden K. Reid D.C.J. Bennion I. Molony A. Goodwin M.J. |
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| Affiliation: | GEC Marconi Mater. Technol. Ltd., Towcester; |
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| 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 |
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