{"id":765,"date":"2026-07-09T13:06:58","date_gmt":"2026-07-09T11:06:58","guid":{"rendered":"https:\/\/www.lhft.tf.fau.de\/?page_id=765"},"modified":"2026-07-09T13:06:58","modified_gmt":"2026-07-09T11:06:58","slug":"faser-bragg-gitter-fertigungslabor","status":"publish","type":"page","link":"https:\/\/www.lhft.tf.fau.de\/en\/faser-bragg-gitter-fertigungslabor\/","title":{"rendered":"Fiber-Bragg-Grating Fabrication Lab"},"content":{"rendered":"\n

At LHFT, we operate a dedicated fiber Bragg grating (FBG) inscription station based on the scanning phase\u2011mask technique. The light source is a KrF excimer laser (Coherent Bragg\u2011Star Industrial, 248 nm, 1 kHz, 10 mJ), providing stable UV exposure for high\u2011quality grating fabrication in photosensitive optical fibers (SSMF, PM fibers, or specialty fibers).<\/p>\n\n\n\n

For fibers with low intrinsic photosensitivity, a high\u2011pressure hydrogen\u2011loading chamber is available (100% H2<\/sub>, 200 bar, 150 \u00b0C) to enhance UV responsiveness prior to inscription.<\/p>\n\n\n\n

For characterization and testing, the lab is equipped with optical spectrum analyzers covering 600\u20131700 nm, as well as a temperature chamber and strain test bench. These resources enable comprehensive spectral, thermal, and mechanical characterization.   We support research and collaborative projects in fiber\u2011optic sensing and communications. For more insights in the FBG inscription process at LHFT watch our video on YouTube:<\/p>\n\n\n

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