Abstract
A long period grating was photoinscribed step-by-step in microstructured poly(methyl methacrylate) fiber for the first time using a continuous wave HeCd laser at 325 nm, irradiating the fiber with a power of 1 mW. The grating had a length of 2 cm and a period of 1 mm. A series of cladding mode coupling resonances were observed throughout the spectral region studied of 600 to 1100 nm. The resonance wavelengths were shown to be sensitive to the diffusion of water into the fiber.
Original language | English |
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Article number | 5466483 |
Pages (from-to) | 1169-1173 |
Number of pages | 5 |
Journal | IEEE Sensors Journal |
Volume | 10 |
Issue number | 7 |
DOIs | |
Publication status | Published - Jul 2010 |
Bibliographical note
©2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.Keywords
- humidity
- long period grating
- microstructured polymer optical fiber
- optical fiber sensor
- photonic crystal fiber