SiO<sub>2</sub>-clad fibers with selectively volatilized soft-glass cores

E. Snitzer; R. Tumminelli

doi:10.1364/OL.14.000757

Optics Letters
Vol. 14,
Issue 14,
pp. 757-759
(1989)
•https://doi.org/10.1364/OL.14.000757

SiO₂-clad fibers with selectively volatilized soft-glass cores

E. Snitzer and R. Tumminelli

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E. Snitzer and R. Tumminelli, "SiO₂-clad fibers with selectively volatilized soft-glass cores," Opt. Lett. 14, 757-759 (1989)

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Abstract

By using a thick-walled SiO₂ tube (25-mm outside diameter, 1-mm inside diameter), a soft-glass core containing Nd or Yb–Er has its alkali (and to a lesser extent its alkaline earth) components volatilized during drawing to give a good-quality laser fiber with Nd- or Yb–Er-doped cores.

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	Constituent (wt.%)

Position	SiO₂	Yb₂O₃	K₂O	Al₂O₃	ZnO	BaO	Na₂O
Before drawing	58.5	16.7	10.6	5.0	4.0	3.0	1.6
1	98.74	0.49	0.10	0.34	0.15	0.10	0
2	88.65	6.17	0.89	1.92	1.51	0.94	0
3	85.21	8.14	1.16	2.39	1.84	1.32	0
4	84.19	8.91	1.13	2.59	1.86	1.35	0
5	83.60	9.09	1.11	2.62	2.10	1.54	0
6	84.34	9.01	1.10	2.41	1.64	1.36	0
7	85.18	8.34	1.01	2.17	1.86	1.31	0
8	86.16	7.43	0.96	2.05	1.86	1.35	0
9	92.96	3.64	0.56	0.98	0.91	0.71	0
10	95.59	2.02	0.36	0.64	0.69	0.59	0
11	96.61	1.52	0.30	0.48	0.56	0.39	0
12	97.49	0.89	0.23	0.42	0.46	0.37	0
13	98.69	0.46	0.07	0.31	0.25	0.08	0

	Constituent (wt. %)

Position	SiO₂	Na₂O	K₂O	ZnO	Nd₂O₃
Before drawing	64.1	1.1	17.2	16.5	1.1
1	96.13	0	1.28	2.10	0.32
2	97.58	0	0.74	1.28	0.19
3	98.02	0	0.64	0.94	0.17
4	97.82	0	0.81	1.15	0.34
5	98.71	0	0.69	0.47	0.02
6	97.40	0	0.97	1.52	0.21
7	96.11	0	1.15	2.41	0.42
8	95.97	0	1.24	2.42	0.34
9	98.65	0	0.40	0.49	0.23
10	99.15	0	0.17	0.30	0.19
11	99.30	0	0.10	0.34	0.23

	Constituent (wt.%)

Position	SiO₂	Yb₂O₃	K₂O	Al₂O₃	ZnO	BaO	Na₂O
Before drawing	58.5	16.7	10.6	5.0	4.0	3.0	1.6
1	98.74	0.49	0.10	0.34	0.15	0.10	0
2	88.65	6.17	0.89	1.92	1.51	0.94	0
3	85.21	8.14	1.16	2.39	1.84	1.32	0
4	84.19	8.91	1.13	2.59	1.86	1.35	0
5	83.60	9.09	1.11	2.62	2.10	1.54	0
6	84.34	9.01	1.10	2.41	1.64	1.36	0
7	85.18	8.34	1.01	2.17	1.86	1.31	0
8	86.16	7.43	0.96	2.05	1.86	1.35	0
9	92.96	3.64	0.56	0.98	0.91	0.71	0
10	95.59	2.02	0.36	0.64	0.69	0.59	0
11	96.61	1.52	0.30	0.48	0.56	0.39	0
12	97.49	0.89	0.23	0.42	0.46	0.37	0
13	98.69	0.46	0.07	0.31	0.25	0.08	0

	Constituent (wt. %)

Position	SiO₂	Na₂O	K₂O	ZnO	Nd₂O₃
Before drawing	64.1	1.1	17.2	16.5	1.1
1	96.13	0	1.28	2.10	0.32
2	97.58	0	0.74	1.28	0.19
3	98.02	0	0.64	0.94	0.17
4	97.82	0	0.81	1.15	0.34
5	98.71	0	0.69	0.47	0.02
6	97.40	0	0.97	1.52	0.21
7	96.11	0	1.15	2.41	0.42
8	95.97	0	1.24	2.42	0.34
9	98.65	0	0.40	0.49	0.23
10	99.15	0	0.17	0.30	0.19
11	99.30	0	0.10	0.34	0.23

Abstract

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