Pump-induced thermal effects in Er-Yb fiber grating DBR lasers

Y. Z. Xu; Hwa Yaw Tam; S. Y. Liu; M. S. Demokan

doi:10.1109/68.705607

Pump-induced thermal effects in Er-Yb fiber grating DBR lasers

Y. Z. Xu, Hwa Yaw Tam, S. Y. Liu, M. S. Demokan

Research output: Journal article publication › Journal article › Academic research › peer-review

29 Citations (Scopus)

Abstract

Large absorption of 980-nm pumping in Er-Yb-doped fibers causes significant temperature differentials along small length of the fibers. When pumped with 40 mW of power, unequal Bragg wavelength shifts of 0.25 and 0.16 nm were measured in the respective 6- and 10-mm-long Bragg reflectors constructed around the Er-Yb core of a 2.5-cm-long DBR laser. This causes large fluctuation in the laser's output power. Stable operation resumed with increased pump power. At 68 mW of pump power, 0.32-nm shift in lasing wavelength (corresponding to a temperature rise of 38°C) was measured in the distributed Bragg reflector fiber laser.

Original language	English
Pages (from-to)	1253-1255
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	10
Issue number	9
DOIs	https://doi.org/10.1109/68.705607
Publication status	Published - 1 Sept 1998

Keywords

Erbium materials
Fiber lasers
Gratings
Optical fiber devices
Ytterbium materials

ASJC Scopus subject areas

Electrical and Electronic Engineering
Atomic and Molecular Physics, and Optics
Physics and Astronomy (miscellaneous)

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10.1109/68.705607

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title = "Pump-induced thermal effects in Er-Yb fiber grating DBR lasers",

abstract = "Large absorption of 980-nm pumping in Er-Yb-doped fibers causes significant temperature differentials along small length of the fibers. When pumped with 40 mW of power, unequal Bragg wavelength shifts of 0.25 and 0.16 nm were measured in the respective 6- and 10-mm-long Bragg reflectors constructed around the Er-Yb core of a 2.5-cm-long DBR laser. This causes large fluctuation in the laser's output power. Stable operation resumed with increased pump power. At 68 mW of pump power, 0.32-nm shift in lasing wavelength (corresponding to a temperature rise of 38°C) was measured in the distributed Bragg reflector fiber laser.",

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AU - Xu, Y. Z.

AU - Tam, Hwa Yaw

AU - Liu, S. Y.

AU - Demokan, M. S.

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AB - Large absorption of 980-nm pumping in Er-Yb-doped fibers causes significant temperature differentials along small length of the fibers. When pumped with 40 mW of power, unequal Bragg wavelength shifts of 0.25 and 0.16 nm were measured in the respective 6- and 10-mm-long Bragg reflectors constructed around the Er-Yb core of a 2.5-cm-long DBR laser. This causes large fluctuation in the laser's output power. Stable operation resumed with increased pump power. At 68 mW of pump power, 0.32-nm shift in lasing wavelength (corresponding to a temperature rise of 38°C) was measured in the distributed Bragg reflector fiber laser.

KW - Erbium materials

KW - Fiber lasers

KW - Gratings

KW - Optical fiber devices

KW - Ytterbium materials

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Pump-induced thermal effects in Er-Yb fiber grating DBR lasers

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Keywords

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