
Semiconductor and Dye Lasers 371
Table 6.7
Properties of Nd:YVO
4
and Nd:YLF (data from [72,117]).
∗
Property Nd:YVO
4
Nd:YLF Units
Lasing wavelength 1064.3 1053 (σ)nm
1047 (π)nm
Index of refraction 1.4481 (n
o
)
1.4704 (n
e
)
Absorption (1% doping)
σ 9cm
−1
at 809 806 nm
π 31 4.5 cm
−1
at 809 797 nm
Absorption bandwidth 15.7 nm
Emission cross section 15
σ 21 12 10
−20
cm
2
π 76 18 10
−20
cm
2
Gain bandwidth 0.96 1.3 nm
Fluorescence lifetime τ
F
90 480 µs
Thermal conductivity 0.05 0.06 W cm
−1
K
−1
Thermal expansion in σ 8.5 −210
−6
K
−1
Thermal expansion in π 3 −4.3 10
−6
K
−1
∗
Parameters are listed for the radiation polarized parallel (π) and orthogonal
(σ) to the optical axis of the crystal ...