Table 3 J-O parameters Ωt of Er3+ in various glasses

From: 2.7 μm emission of high thermally and chemically durable glasses based on AlF3

 

AYF1

AYF2

AYF3

ZBLAN

ZBLAY

ZBLN

phosphate

Ω2(×10−20 cm−2)

1.59

1.36

1.56

2.70

3.08

2.60

6.65

Ω4(×10−20 cm−2)

1.13

1.03

1.10

1.68

1.46

1.31

1.52

Ω6(×10−20 cm−2)

1.01

0.95

1.05

1.18

1.69

1.12

1.11

δ(×10−6)

0.12

0.03

0.10

0.11

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