¡¡

  << Back to top

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 LHG8.

 

  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

¡¡

  << Back to top

¡¡