Crystals

Er:YAG

Er:GGG

Er:YSGG

Er:GYSGG

Er:GSGG

Wavelength(nm)

2937

2821

2797

2796

2790

Er³⁺ concentration (at.%)

33

30

30

35

35

⁴I_11/2 Lifetime(ms)

0.12

0.96

1.3

1.2

1.6

⁴I_13/2 Lifetime(ms)

7.25

4.86

3.4

3.9

6.0

⁴I_13/2 /⁴I_11/2 lifetime ratio

60.4

5.1

2.6

3.3

3.8