Investigation of H2 in- and out-diffusion impact on long-period grating devices

Y. Liu, Lin Zhang, W Zhang, J A R Williams, I Bennion

Research output: Unpublished contribution to conferenceAbstract


Summary form only given. H2-loading is an established technique to photosensitise fibres for fabricating short-period (fibre Bragg gratings FBGs) and long-period gratings (LPGs). However, the H2-diffusion effect on the spectral response is far more significant in LPGs than in FBGs (reported previously). For a systematical investigation we have assessed this effect in LPGs for H 2 in- and out-diffusion at high- and low-pressures with long and short photosensitising time lengths.
Original languageEnglish
Number of pages2
Publication statusPublished - May 1999
EventConference on lasers and electro-optics (CLEO'99) - Baltimore, United States
Duration: 23 May 199928 May 1999


ConferenceConference on lasers and electro-optics (CLEO'99)
Country/TerritoryUnited States


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