- Title
- Michelson interferometer characterisation of noise reduction in DFB fibre lasers
- Creator
- Canagasabey, Albert; Jones, David; Mann, David; Canning, John; Fleming, Simon; Holdsworth, John
- Relation
- 3rd Asia Pacific Optical Sensors Conference. Third Asia Pacific Optical Sensors Conference: Proceedings of SPIE Vol. 8351 (Sydney, N.S.W. 31 January - 03 February, 2012)
- Publisher Link
- http://dx.doi.org/10.1117/12.915942
- Publisher
- Society of Photo-Optical Instrumentation Engineers (SPIE)
- Resource Type
- conference paper
- Date
- 2012
- Description
- A comparison is made between unpackaged and packaged distributed feedback (DFB) fibre lasers using the Michelson interferometer configuration for delayed self-heterodyne interferometery (MlDSHI) to ascertain the improvements to the external environmental noise, quantified by reductions in the Gaussian linewidth. Voigt fitting is used to extract and separate out the Lorentzian and Gaussian linewidth contributions and therefore the associated sources of noise. Significant improvements in the Gaussian linewidth were achieved as a result of significant reductions in the sensitivity of the DFB laser to external perturbations using packaging. However, a broadening of the laser Lorentzian linewidth was observed.
- Subject
- heterodyne; DFB; laser linewidth; Faraday rotation; Michelson interferometer; Gaussian noise; Lorentzian noise
- Identifier
- http://hdl.handle.net/1959.13/1055696
- Identifier
- uon:15921
- Identifier
- ISBN:9780819490278
- Rights
- Copyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited
- Language
- eng
- Full Text
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