Room-temperature operation of widelytunable loss filter
- 15 February 2001
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 37 (4) , 216-218
- https://doi.org/10.1049/el:20010166
Abstract
A widely tunable and room-temperature operationable loss filter based on a long-period fibre grating (LPFG) fabricated in a B/Ge codoped fibre is reported. The filter exhibits extremely high temperature sensitivity. A maximum spectral shift of –48.1 nm from 10 to 40°C is achieved, corresponding to a thermal tuning efficiency of 1.6 nm/°C. This value is increased by more than one order of magnitude compared with the LPFGs fabricated in standard telecom fibre, and even twice that of a LPFG with sensitivity enhanced by a special polymer.Keywords
This publication has 5 references indexed in Scilit:
- Resonance conditions of long-period gratings in temperature sensitive polymer ring optical fibersIEEE Photonics Technology Letters, 2000
- Tunable loss filter based on metal-coated long-period fiber gratingIEEE Photonics Technology Letters, 1999
- Widely tunable long-period fibre gratingsElectronics Letters, 1999
- Generalized expression for the growth of long period gratingsIEEE Photonics Technology Letters, 1998
- Long-period fiber gratings as band-rejection filtersJournal of Lightwave Technology, 1996