Highly nonlinear As–S–Se glasses for all-optical switching

J. M. Harbold; F. Ö. Ilday; F. W. Wise; J. S. Sanghera; V. Q. Nguyen; L. B. Shaw; I. D. Aggarwal

doi:10.1364/OL.27.000119

Optics Letters
Vol. 27,
Issue 2,
pp. 119-121
(2002)
•https://doi.org/10.1364/OL.27.000119

Highly nonlinear As–S–Se glasses for all-optical switching

J. M. Harbold, F. Ö. Ilday, F. W. Wise, J. S. Sanghera, V. Q. Nguyen, L. B. Shaw, and I. D. Aggarwal

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J. M. Harbold, F. Ö. Ilday, F. W. Wise, J. S. Sanghera, V. Q. Nguyen, L. B. Shaw, and I. D. Aggarwal, "Highly nonlinear As–S–Se glasses for all-optical switching," Opt. Lett. 27, 119-121 (2002)

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The topics in this list come from the Optics and Photonics Topics applied to this article.
Previously assigned OCIS codes
- Glass and other amorphous materials (160.2750)
- Nonlinear optical materials (160.4330)
- Nonlinear optics (190.0190)
- Kerr effect (190.3270)

About this Article
History
- Original Manuscript: August 13, 2001
- Published: January 15, 2002

Abstract

We have synthesized a series of chalcogenide glasses from the As–S–Se system that is designed to have strong nonlinearities. Measurements reveal that many of these glasses offer optical Kerr nonlinearities greater than 400 times that of fused silica at 1.25 and $1.55 µ m$ and figures of merit for all-optical switching greater than 5 at $1.55 µ m$ .

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Glass	n₀ at 1.55 µm	λ_gap (μm)	λ = 1.25 µm			λ = 1.55 µm
Glass	n₀ at 1.55 µm	λ_gap (μm)	n₂/n_{2, fused silica} (±15%)	β (cm/GW) (±15%)	FOM (±20%)	n₂/n_{2, fused silica} (±15%)	β (cm/GW) (±15%)	FOM (±20%)
As₄₀S₆₀	2.45	0.52	260	0.16	3	220	<0.030	>12
As₄₀S₅₀Se₁₀	2.49	0.55	400	0.14	6	380	0.16	4
As₄₀S₄₀Se₂₀	2.55	0.59	360	0.22	3	300	0.060	8
As₄₀S₃₀Se₃₀	2.62	0.62	580	0.38	3	430	0.15	5
As₄₀S₂₀Se₄₀	2.70	0.64	920	1.04	2	460	0.25	3
As₄₀S₁₀Se₅₀	2.76	0.67	1000	1.4	2	560	0.14	7
As₄₀Se₆₀	2.81	0.70	1200	2.8	1	930	0.14	11
As₃₉Se₆₁	2.81	0.70	–	–	–	660	0.28	4
As₄₀Se₅₅Cu₅	2.93	0.79	–	–	–	850	0.29	5
As₂₅S₅₅Te₂₀	2.52	0.79	–	–	–	470	0.15	5

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