| Autor: |
K. Zhou, A.G. Simpson, X. Chen, L. Zhang, I. Bennion |
| Zdroj: |
IEEE Photonics Technology Letters; Jun2004, Vol. 16 Issue 6, p1549-1551, 3p |
| Abstrakt: |
We present, for the first time to our knowledge, experimental evidence showing that superimposed blazed fiber Bragg gratings may be fabricated and used to extend the dynamic range of a grating-based spectrometer. Blazed gratings of 4° and 8° were superimposed in germanosilicate fiber by ultraviolet inscription and used in conjunction with a coated charged-coupled device array to interrogate a wavelength-division-multiplexing sensor array. We show that the system can be used to monitor strain and temperature sensors simultaneously with an employable bandwidth which is extendable to 70 nm. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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