Sony SLD131UL Datasheet

GaAlAs Laser Diode
SLD131UL
Description
The SLD131UL is a low-power consumption and
low-noise laser diode developed for portable CDs.
Features
Low current consumption IOP: 20mA (PO = 2.5mW)
Supports single power supply.
Low noise
Applications
Structure
GaAlAs double hetero laser diode
PIN photodiode to monitor laser beam output
Absolute Maximum Ratings (Tc = 25°C)
Optical power output PO 4mW
Reverse voltage VR LD 2 V
PD 15 V
Operating temperature Topr –10 to +60 °C
Storage temperature Tstg –40 to +85 °C
M-259
Connection Diagram Pin Configuration
COMMON
3
PD
2
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
LD
1
21
3
1. LD anode
2. PD anode
3. COMMON
Bottom View
– 1 –
E94615-PK
SLD131UL
Electrical and Optical Characteristics (TC = 25°C) TC : Case temperature
Item
Threshold current
Symbol
Ith
Conditions
Min.
Typ.
16
Max.
28
Unit
mA Operating current Operating voltage Wavelength
Monitor current
Perpendicular Rediation angle
Parallel
Asymmetry Positional
accuracy
Position
Angle Differential efficiency Astigmatism Dark current of PD capacitance of PD
Iop Vop λp
Im
θ⊥ θ//
SR
X, ∆Y, ∆Z
∆φ⊥ ηD
AS ID CT
Po = 2.5mW Po = 2.5mW Po = 2.5mW Po = 2.5mW
VR = 5V
Po = 2.5mW
Po = 2.5mW Po = 2.5mW
| Z // –Z| VR = 5V VR = 5V, f = 1kHz
Power
1.7
760
0.08 20
8
0.2
20
1.9
790
0.11 39
13
0.6
30
2.5
810
0.6 45
25 25
±150
±4
0.9 15
150
30
mA
V
nm mA
degree degree
%
µm
degree
mW/mA
µm
nA pF
S
L SR
S
–7°
θ//
R =
SL – SR SL + SR
– 2 –
Example of Representative Characteristics
SLD131UL
Optical power output vs. Forward current characteristics
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
– Optical power output [mV]
O
P
1.0
0.5
0.0 0 5 10 15 20 25 30 35
0 0.1 0.2 0.3
Tc = 10°C
IF – Forward current [mA]
Tc = 10°C
60°C
20°C
30°C
40°C
50°C 60°C
IF [mA] Imon [mA]
Threshold current vs. Temperature characteristics
100
80
60
Far field pattern (FFP)
Po = 2.5mW, Tc = 25°C
θ⊥
Relative radiant intensity
θ//
–40 –30 –20 –10 0 10 20 30 40
Angle [ ° ]
Differential efficiency vs. Temperature characteristics
1.0 Po = 2.5mW
0.8
40
20
Ith – Threshold current [mA]
10
–20
0
20 40 60 80
Tc – Case temperature [°C]
PIN diode voltage and current characteristics
0.25
Current [mA]
Po = 2.5mW, Tc = 25°C
0
0.6
0.4
– Differential efficiency [mW/mA]
0.2
D
η
0.0
–20
0
20 40 60 80
Tc – Case temperature [°C]
Monitor current vs. Temperature characteristics
1.0
0.8
0.6
0.4
0.2
Im – Monitor current [mA]
Po = 2.5mW
–0.25
–1.0 0.0 1.0
Voltage [V]
0.1
–20 0 20 40 60 80
Tc – Case temperature [°C]
– 3 –
Loading...
+ 4 hidden pages