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Bismuth doped fiber for filtering applications

Bismuth doped fiber for filtering applications
Bismuth doped fiber for filtering applications
Optical filters have numerous applications in various optical systems due to their wavelength based discriminative transmission losses. These applications include detection of an emitted weak signal while avoiding strong excitation signal in any spectroscopy system, laser beam diagnostics, and tailoring the spectrum of a broadband light source etc in different sectors such as astrophysics, chemical analysis, imaging systems, communication, aerospace, and optics labs etc. A fiber based filter is highly desirable as it can be easily spliced to other fibers leading to an integrated optical system thanks to the low splice losses. Several fiber based filters have been demonstrated based on birefringence [1], tapering [2], dispersion [3], and absorption [4-5] etc. The most important characteristic of a filter is a steep absorption edge with a low insertion loss, therefore it must offer a very high absorption in attenuated band compared to transmission band. The rare-earth absorption based fiber filters can offer very high absorptions with steep edge. Moreover, they are superior in quality than others as they can afford to handle much higher power thanks to the long length of the fiber. A first demonstration of fiber filter based on holmium doped silica fiber was demonstrated by Farries et al. [4]. & more...
Jain, Deepak
787e5045-8862-46ba-b15e-82c2fe60495f
Thipparapu, N.K.
a36a2b4c-b75c-4976-a753-b5fab9e54150
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Jain, Deepak
787e5045-8862-46ba-b15e-82c2fe60495f
Thipparapu, N.K.
a36a2b4c-b75c-4976-a753-b5fab9e54150
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2

Jain, Deepak, Thipparapu, N.K. and Sahu, J.K. (2019) Bismuth doped fiber for filtering applications. 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, ICM – International Congress Centre, Munich, Germany. 22 - 26 Jun 2019. (doi:10.1109/CLEOE-EQEC.2019.8873377).

Record type: Conference or Workshop Item (Paper)

Abstract

Optical filters have numerous applications in various optical systems due to their wavelength based discriminative transmission losses. These applications include detection of an emitted weak signal while avoiding strong excitation signal in any spectroscopy system, laser beam diagnostics, and tailoring the spectrum of a broadband light source etc in different sectors such as astrophysics, chemical analysis, imaging systems, communication, aerospace, and optics labs etc. A fiber based filter is highly desirable as it can be easily spliced to other fibers leading to an integrated optical system thanks to the low splice losses. Several fiber based filters have been demonstrated based on birefringence [1], tapering [2], dispersion [3], and absorption [4-5] etc. The most important characteristic of a filter is a steep absorption edge with a low insertion loss, therefore it must offer a very high absorption in attenuated band compared to transmission band. The rare-earth absorption based fiber filters can offer very high absorptions with steep edge. Moreover, they are superior in quality than others as they can afford to handle much higher power thanks to the long length of the fiber. A first demonstration of fiber filter based on holmium doped silica fiber was demonstrated by Farries et al. [4]. & more...

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More information

Published date: 2019
Additional Information: Poster
Venue - Dates: 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, ICM – International Congress Centre, Munich, Germany, 2019-06-22 - 2019-06-26

Identifiers

Local EPrints ID: 441315
URI: http://eprints.soton.ac.uk/id/eprint/441315
PURE UUID: ada1369c-df66-4a48-af24-aa4a65b0922e
ORCID for N.K. Thipparapu: ORCID iD orcid.org/0000-0002-5153-4737
ORCID for J.K. Sahu: ORCID iD orcid.org/0000-0003-3560-6152

Catalogue record

Date deposited: 09 Jun 2020 16:30
Last modified: 28 Apr 2022 01:48

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Contributors

Author: Deepak Jain
Author: N.K. Thipparapu ORCID iD
Author: J.K. Sahu ORCID iD

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