PolyU Institutional Repository >
Electrical Engineering >
EE Journal/Magazine Articles >
Please use this identifier to cite or link to this item:
|Title: ||Temporal thermal response of Type II–IR fiber Bragg gratings|
|Authors: ||Liao, Changrui|
Grattan, Kenneth T. V.
|Subjects: ||Fiber optic components|
Fiber optic sensors
Pulsed laser applications
|Issue Date: ||1-Jun-2009 |
|Publisher: ||Optical Society of America|
|Citation: ||Applied optics, 1 June 2009, v. 48, no. 16, p. 3001-3007.|
|Abstract: ||We use the phase mask method to investigate both experimentally and theoretically the temporal thermal response of Type II-IR fiber Bragg gratings inscribed by a femtosecond laser. A fast testing system is developed to measure the thermal response time by means of periodic CO₂ laser irradiation, which creates a rapid temperature change environment. The temporal thermal response is found to be independent of the heat power and the heat direction, although the grating produced destroys the axial symmetry of the fiber. The measured values of the temporal thermal response are ~230ms for heating and ~275ms for cooling, which different from the simulation results obtained from a lumped system equation. The causes of such differences are investigated in detail.|
|Description: ||DOI: 10.1364/AO.48.003001|
|Rights: ||© 2009 Optical Society of America. This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-16-3001. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.|
|Type: ||Journal/Magazine Article|
|Appears in Collections:||EE Journal/Magazine Articles|
All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.