Laser Diodes
RLD78PZW4
!Electrical and optical characteristics (Tc=25°C､CW)
Parameter
Threshold current
Operating current
Operating voltage
Differential efficiency
Parallel divergence angle
Perpendicular divergence angle
Parallel deviation angle
Perpendicular deviation angle
Emission point accuracy
Symbol
Ith
Iop
Vop
η
θ //∗
θ ⊥∗
∆φ //
∆φ ⊥
∆X
∆Y
∆Z
Min. Typ. Max. Unit
Conditions
− 30 50 mA
−
− 133 165 mA
− 2.1 2.5
V
0.7 0.9 1.4 mW / mA
8 9 10 deg PO=90mW
15 17 19 deg
−2 0 +2 deg
−3 0 +3 deg
−80 0 +80 µm
−
Peak emission wavelength
λ 779 784 789 nm
Astigmatism
∆ − − 6 µm
∗ θ // and θ ⊥ are defined as the angle within which the intensity is 50% of the peak value.
PO=90mW
NA=0.15, PO=90mW
!Electrical and optical characteristics curves
250
Tc=25°C
Tc=50°C
200 Tc=70°C
Tc=90°C
150
100
50
6
5
4
3
2
1
0
0
0
100 200 300 400
OPERATING CURRENT : IF (mA)
Fig.1 Optical output
vs. operating current
20
18
16
14
12
10
8
6
4
2
00
20 40 60 80
PO (mW)
Fig.2 PO vs. FFP
100
800
795
790
785
780
775
770
0
20 40 60 80 100
PACKAGE TEMPERATURE : TC (°C)
Fig.3 Dependence of wavelength
on temperature
2/2
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