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Comparative experimental analysis of thermal characteristics of Ytterbium-Doped Phosphosilicate and Aluminosilicate fibers

Comparative experimental analysis of thermal characteristics of Ytterbium-Doped Phosphosilicate and Aluminosilicate fibers
Comparative experimental analysis of thermal characteristics of Ytterbium-Doped Phosphosilicate and Aluminosilicate fibers
We present a comparative experimental analysis of the thermal spectroscopic characteristics of a phosphosilicate (P)-based ytterbium-doped fiber (YDF) against an aluminosilicate (Al)-based YDF in the temperature range of 25 to 150°C. We also characterize the fibers as gain media in a cladding-pumped amplifier configuration. While both fibers exhibit comparable trends in their thermal characteristics, there are noticeable distinctions in the fluorescence lifetime reduction rate and the spectral dependence of the transition cross-sections. The P- and Al-based YDFs present thermal lifetime reduction rates of 0.012%/°C and 0.026%/°C, respectively. In particular, in the spectral region at ~940 nm, the absorption cross-section of the P-based YDF undergoes significantly less thermal change compared to that of the Al-YDF. In the cladding-pumped amplifier configuration operating at a total gain of 10 dB, the Al-based YDF generally performs betters than the P-based YDF in the temperature range of 25 to 75°C. However, it is highlighted that in the high temperature range of over 75°C, the latter shows a less gain reduction rate than the former, thereby yielding higher relative output power by 3.3% for a 1060-nm signal, for example.
1226-4776
182-187
Lee, Seungjong
2be01928-de45-4adf-a59b-85702ed06050
Vazquez-Zuniga, Luis A.
6c1560d3-fd79-4023-b4df-40705dda5fd5
Lee, Dongyoung
7b04d59b-4de4-4103-a25f-be01ab2f9e18
Kim, Hyuntai
cfbf9241-6bb7-4738-8e2d-4fbc5c1217cc
Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Jeong, Yoonchan
94ab6f5b-7623-4061-8598-8de2e7aa751e
Lee, Seungjong
2be01928-de45-4adf-a59b-85702ed06050
Vazquez-Zuniga, Luis A.
6c1560d3-fd79-4023-b4df-40705dda5fd5
Lee, Dongyoung
7b04d59b-4de4-4103-a25f-be01ab2f9e18
Kim, Hyuntai
cfbf9241-6bb7-4738-8e2d-4fbc5c1217cc
Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Jeong, Yoonchan
94ab6f5b-7623-4061-8598-8de2e7aa751e

Lee, Seungjong, Vazquez-Zuniga, Luis A., Lee, Dongyoung, Kim, Hyuntai, Sahu, Jayanta K. and Jeong, Yoonchan (2013) Comparative experimental analysis of thermal characteristics of Ytterbium-Doped Phosphosilicate and Aluminosilicate fibers. Journal of the Optical Society of Korea, 17 (2), 182-187. (doi:10.3807/JOSK.2013.17.2.182).

Record type: Article

Abstract

We present a comparative experimental analysis of the thermal spectroscopic characteristics of a phosphosilicate (P)-based ytterbium-doped fiber (YDF) against an aluminosilicate (Al)-based YDF in the temperature range of 25 to 150°C. We also characterize the fibers as gain media in a cladding-pumped amplifier configuration. While both fibers exhibit comparable trends in their thermal characteristics, there are noticeable distinctions in the fluorescence lifetime reduction rate and the spectral dependence of the transition cross-sections. The P- and Al-based YDFs present thermal lifetime reduction rates of 0.012%/°C and 0.026%/°C, respectively. In particular, in the spectral region at ~940 nm, the absorption cross-section of the P-based YDF undergoes significantly less thermal change compared to that of the Al-YDF. In the cladding-pumped amplifier configuration operating at a total gain of 10 dB, the Al-based YDF generally performs betters than the P-based YDF in the temperature range of 25 to 75°C. However, it is highlighted that in the high temperature range of over 75°C, the latter shows a less gain reduction rate than the former, thereby yielding higher relative output power by 3.3% for a 1060-nm signal, for example.

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Published date: 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 355959
URI: http://eprints.soton.ac.uk/id/eprint/355959
ISSN: 1226-4776
PURE UUID: 2bf32e25-0782-43b7-9712-3af8c10cc29e
ORCID for Jayanta K. Sahu: ORCID iD orcid.org/0000-0003-3560-6152

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Date deposited: 09 Sep 2013 13:47
Last modified: 09 Jan 2022 03:06

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Contributors

Author: Seungjong Lee
Author: Luis A. Vazquez-Zuniga
Author: Dongyoung Lee
Author: Hyuntai Kim
Author: Jayanta K. Sahu ORCID iD
Author: Yoonchan Jeong

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