エルビウムレーザガラスの特性表
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PROPERTIES
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Cr14
|
EAT14
|
|
LASER PROPERTIES
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|
|
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Cross section for stimulated emission (10 -20 cm 2 )
|
0.8
|
0.8
|
|
Fluorescent lifetime (ms)
|
7.7-8.0
|
7.7-8.0
|
|
Center lasing wavelength (nm)
|
1535
|
1535
|
|
OPTICAL PROPERTIES
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|
|
|
n （ 1535nm ）
|
1.530
|
1.524
|
|
n d
|
1.539
|
1.532
|
|
Abbe value
|
64
|
66
|
|
dn/dT (10 -6 /oC) (20~100oC)
|
-5.2
|
-1.72
|
|
Coeff. of linear thermal expansion (10 -7 /oC)(20~100oC)
|
103
|
87
|
|
Thermal coeff. of optical path length (10 -7 /oC) （ 20~100oC ）
|
3.6
|
29
|
|
THERMAL PROPERTIES
|
|
|
|
Transformation temp. (oC)
|
455
|
556
|
|
Softening temp. (oC)
|
493
|
605
|
|
Thermal conductivity (25oC) (W/m. K)
|
0.70
|
0.70
|
|
Coeff. of linear thermal expansion (10 -7 /oC) (100~300oC)
|
127
|
95
|
|
OTHER PROPERTIES
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|
|
|
Density (g/cm 3 )
|
3.10
|
3.06
|
|
Chemical durability (weigh loss rate at 100oC distilled water) (μg/hr.cm 2 )
|
103
|
52
|
蛍光寿命は、エルビウム濃度により多少変化します。
標準ドープ量
CR14:
(0.13%:Er:Yb:Cr:Glasss) Er3+ 1.3x10^19/cm3, Yb3+ 2x10^21/cm3 ,Cr4+
1.2x10^21/cm3: Glaas
EAT14:
(0.13%:Er:Yb:Glasss) Er3+ 1.3x10^19/cm3, Yb3+ 2x10^21/cm3: Glaas
(0.26%:Er:Yb:Glasss) Er3+ 2.6x10^19/cm3, Yb3+ 2x10^21/cm3: Glaas
(0.5%:Er:Yb:Glasss) Er3+ 5x10^19/cm3, Yb3+ 2x10^21/cm3: Glaas
(1%:Er:Yb:Glasss) Er3+ 10x10^19/cm3, Yb3+ 2x10^21/cm3: Glaas
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