Voo, Nyuk Yoong (2006) Development, characterisation and analysis of narrow linewidth, single-frequency DFB fibre lasers in the 1.5 µm - 2 µm region. University of Southampton, Optoelectronic Research Centre, Doctoral Thesis, 175pp.
Abstract
The main aim of this study was to investigate the anomalous linewidth behaviour of the DFB fibre lasers, as the observed linewidths of these lasers remain far above their predicted theoretical limit based on the Schawlow-Townes linewidth formula. Narrow linewidth, single-frequency fibre lasers are attractive sources for optical coherent communication, wavelength division multiplexing, optical sensors and spectroscopy, as they have kilohertz linewidths, direct compatibility with the fibre network, wavelength tunability and are simple to fabricate. Another aim of the study was to extend the operating wavelength of the fibre DFB lasers around 2 µm, this research was driven by the number of possible applications in areas such as remote gas sensing, laser imaging detection and ranging (LIDAR) and medicine. in the fibre, a nonradiative transition in the 2 µm region and also the large intrinsic losses of the silica fibre associated with the 2.1 µm wavelength.
More information
Identifiers
Catalogue record
Export record
Contributors
University divisions
- Faculties (pre 2011 reorg) > Faculty of Engineering Science & Maths (pre 2011 reorg) > Optoelectronics Research Centre (pre 2011 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > Zepler Institute for Photonics and Nanoelectronics > Optoelectronics Research Centre (pre 2011 reorg)
Zepler Institute for Photonics and Nanoelectronics > Optoelectronics Research Centre (pre 2011 reorg)
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.