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     Nd doped phosphate glass 

     Nd doped phosphate glass have been widely used in high average power laser solid state lasers£¬laser material processing, range finder and other industrial and scientific applications¡£

      LLG mainly offers two types of Nd3+ doped phosphate glasses£­N21and N31. LLG Nd3+ phosphate glasses are guaranteed in optical qualities such as homogeneity, striation, stress  birefringence, Pt inclusions etc. The different neodymium doping phosphate glass are ready for your quest. We have stocked 0.7%, 3.0%, and 4.0% doped N31 and N21.


N21- an Nd3+:phosphate  glass is specially developed for the LF1# and LF2# Laser Facility. It consist of two high power laser beams at 1.054um, each has an output aperture of 200mm with output power of 1012W. Its operation represents a significant achievement of laser technology in China. This kind of glass exhibits the moderate cross section for stimulated emission and the excellent chemical durability.  

 Properties of Nd3+-doped phosphate glass N21

 

N21

LASER PROPERTIES
Nd2O3 (wt%)
Nd3+ conc. (1020ions/cm3)
Cross section for stimulated emission(10-20cm2)
lift time (usec)
Fluorescence half-line width at 290ºK(Å)
Center lasing wavelength (nm)



2.2
2.68
3.40¡À0.3
330
240
1053

OPTICAL PROERTIES
Non-linear refractive index coeff.n2(¡Á10£­13e.s.u)
n£¨1053nm£©
nd
nF
nc
Abbe value
dn/dT (10-6/ºC) £¨20~100ºC£©
Coeff.of linear thermal expansion (10-6/ºC)£¨20~100ºC£©
Thermal coeff. of optical path length (10-6/ºC) £¨20~100ºC£©



1.3¡À0.1
1.5652
1.5758
1.5731
1.5820
65.3
-4.2
11.0
1.9

THERMAL PROPERTIES
Transformation temp.(ºC)
Softening temp.(ºC)
Coeff.of linear thermal expansion (10-6/ºC) (100~TgºC)
Thermal conductivity (25ºC) (10-3W/cmºC)
Specific heat ( 25ºC) (J/cm3ºC)



500
530
12.0
5.53
0.75

CHEMICAL ROPERTIES
Dw (H2O 100ºC 1hr)(wt. Loss%)
DA(HNO3 pH2.2 100ºC 1hr) (wt. loss%)


0.06
0.30

OTEHER ROPERTIES
Density(g/cm3)
Young¡¯s modulus (kgf/mm2)
Posson¡¯s ratio
Knoop hardness (kg/cm2)



3.40
5640
0.27
650

 


N31£­a new Nd3+: phosphate glass is specially developed for the LF12# Laser Facility£­at present the most powerful laser facility in China£¨also called¡°Shengguang¡±)¡£It exhibits the nearly same qualification with HOYA L

Properties of Nd3+-doped phosphate glass N31

 

N31

LASER PROPERTIES
Nd2O3 (wt%)
Nd3+ conc. (1020ions/cm3)
Cross section for stimulated emission(10-20cm2)
Fluorescent lifetime(usec)
Fluorescence half-line width at 290ºK(A)
Center lasing wavelength(nm)



2.2
2.26
4.0¡À0.3
340¡À10
201
1053

OPTICAL PROERTIES
Non-linear refractive index coeff.n2(¡Á10£­13e.s.u)
n£¨1053nm£©
nd
nF
nc
Abbe value
dn/dT (10-6/ºC) £¨20~100ºC£©
Coeff.of linear thermal expansion (10-6/ºC)£¨20~100ºC£©
Thermal coeff. of optical path length (10-6/ºC) £¨20~100ºC£©


1.1¡À0.1
1.5280
1.5357
1.5413
1.5332
66.2
-4.3
10.7
1.4

THERMAL PROPERTIES
Transformation temp.(ºC)
Softening temp.(ºC)
Coeff. of linear thermal expansion (10-6/ºC) (100~TgºC)
Thermal conductivity (25ºC) (10-3W/cmºC)
Specific heat ( 25ºC) (J/cm3ºC)


430
475
12.7
5.58
0.75

CHEMICAL ROPERTIES
Dw (H2O 100ºC 1hr)(wt. Loss%)
DA(HNO3 pH2.2 100ºC 1hr) (wt. loss%)


0.09
0.40

OTHER ROPERTIES
Density(g/cm3)
Young¡¯s modulus (kgf/mm2)
Posson¡¯s ratio
Knoop hardness (kg/cm2)



2.83
5270
0.27
630

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