Effect of power scale of 974 and 633 nm lasers on the induced loss at 633 nm of Yb<sup>3+</sup>/Al<sup>3+</sup> co-doped silica fiber

Fenghou Xie; Chongyun Shao; Fengguang Lou; Meng Wang; Chunlei Yu; Suya Feng; Lili Hu

doi:doi:10.3788/COL201816.010603

Chinese Optics Letters, 2018, 16 (1): 010603, Published Online: Jul. 16, 2018

Effect of power scale of 974 and 633 nm lasers on the induced loss at 633 nm of Yb³⁺/Al³⁺ co-doped silica fiber

Fenghou Xie ^1,2Chongyun Shao ^1,2Fengguang Lou ¹Meng Wang ¹Chunlei Yu ^1,*Suya Feng ^1,3Lili Hu ¹

Author Affiliations

¹ Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

² University of Chinese Academy of Sciences, Beijing 100049, China

³ e-mail: fsy@siom.ac.cn

Figures & Tables

Fig. 1. Schematic configuration of the PD measurement.

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Fig. 2. (Color online) Average inversion and standard deviation of the inversion versus pump power for a core-pumped Yb3+/Al3+ co-doped silica fiber.

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Fig. 3. (Color online) Dynamic equilibrium of PD and PB. PD>PB means PD is stronger than PB: (a) the powers at 633 nm are 0.01 and 1.7 mW; A–G indicate the experimental process, (b) the power at 633 nm is 1.7 mW.

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Fig. 4. (Color online) Induced loss at 633 nm: (a) with different 974 nm pump powers, (b) PB with different wavelengths.

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Fig. 5. (Color online) Induced loss at 633 nm with different powers at 633 nm, the power at 974 nm is 250 mW.

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Fig. 6. (Color online) Relation between 633 nm laser power and saturated loss, time constant. Insert: a linear fit of the saturated loss.

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Fig. 7. 2D-HYSCORE spectrum of the Yb3+/Al3+ co-doped silica fiber preform.

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Table1. Fitting Parameters at Different 633 nm Laser Powers

Power of 633 nm laser (mW)	$α_{eq}$ (dB/m)	$τ$ (min)	$β$
0.01	207	510	0.45
0.62	182	359	0.44
0.99	167	299	0.44
1.7	148	219	0.45
7.3	106	122	0.45

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Fenghou Xie, Chongyun Shao, Fengguang Lou, Meng Wang, Chunlei Yu, Suya Feng, Lili Hu. Effect of power scale of 974 and 633 nm lasers on the induced loss at 633 nm of Yb³⁺/Al³⁺ co-doped silica fiber[J]. Chinese Optics Letters, 2018, 16(1): 010603.

Effect of power scale of 974 and 633 nm lasers on the induced loss at 633 nm of Yb³⁺/Al³⁺ co-doped silica fiber

Fig. 1. Schematic configuration of the PD measurement.

Fig. 2. (Color online) Average inversion and standard deviation of the inversion versus pump power for a core-pumped Yb3+/Al3+ co-doped silica fiber.

Fig. 3. (Color online) Dynamic equilibrium of PD and PB. PD>PB means PD is stronger than PB: (a) the powers at 633 nm are 0.01 and 1.7 mW; A–G indicate the experimental process, (b) the power at 633 nm is 1.7 mW.

Fig. 4. (Color online) Induced loss at 633 nm: (a) with different 974 nm pump powers, (b) PB with different wavelengths.

Fig. 5. (Color online) Induced loss at 633 nm with different powers at 633 nm, the power at 974 nm is 250 mW.

Fig. 6. (Color online) Relation between 633 nm laser power and saturated loss, time constant. Insert: a linear fit of the saturated loss.

Fig. 7. 2D-HYSCORE spectrum of the Yb3+/Al3+ co-doped silica fiber preform.

Table1. Fitting Parameters at Different 633 nm Laser Powers

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Effect of power scale of 974 and 633 nm lasers on the induced loss at 633 nm of Yb3+/Al3+ co-doped silica fiber

Fig. 1. Schematic configuration of the PD measurement.

Fig. 2. (Color online) Average inversion and standard deviation of the inversion versus pump power for a core-pumped Yb3+/Al3+ co-doped silica fiber.

Fig. 3. (Color online) Dynamic equilibrium of PD and PB. PD>PB means PD is stronger than PB: (a) the powers at 633 nm are 0.01 and 1.7 mW; A–G indicate the experimental process, (b) the power at 633 nm is 1.7 mW.

Fig. 4. (Color online) Induced loss at 633 nm: (a) with different 974 nm pump powers, (b) PB with different wavelengths.

Fig. 5. (Color online) Induced loss at 633 nm with different powers at 633 nm, the power at 974 nm is 250 mW.

Fig. 6. (Color online) Relation between 633 nm laser power and saturated loss, time constant. Insert: a linear fit of the saturated loss.

Fig. 7. 2D-HYSCORE spectrum of the Yb3+/Al3+ co-doped silica fiber preform.

Table1. Fitting Parameters at Different 633 nm Laser Powers

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Effect of power scale of 974 and 633 nm lasers on the induced loss at 633 nm of Yb³⁺/Al³⁺ co-doped silica fiber