Ordering number : EN5854A
LD PD
13
2
– power supply system
DL-3038-023
Overview
DL-3038-023 is 635 nm (T yp.) AlGaInP laser diode with low threshold current.
The low threshold current and short wavelength are achieved by use of a strained
multiple quantum well active layer. The lasing wavelength is 635 nm which is 8
times brighter than 670 nm lasers. DL-3038-023 is suitable for battery powered
laser pointers due to its low operating current and voltage.
Features
• Short wavelength : 635 nm (Typ.)
• Low threshold current : Ith = 20 mA (Typ.)
• Output power : 3 mW CW
• Low operating voltage : Vop = 2.2 V (Typ.)
Absolute Maximum Ratings at Tc=°C
Parameter Symbol Ratings Unit
Light Output Po 3 mW
Reverse Voltage
Laser
PIN 30
VR
2
V
Red Laser Diode
DL-3038-023
AlGaInP Laser Diode
Package Dimensions
0
ø9.0–0.03
ø5.35
ø4.75±0.15
ø2.1
Effective window diameter 1.0min.
1 3
0.3
2.45±0.150.5max.
Pin No.
123
9.0mm ø stem(Red
Electrical Connection
2
1.0±0.1
LD facet
ø1.4max.
3– ø 0.45±0.1
ø2.54
Tolerance : ±0.2
Unit : mm
Top view
0.45±0.1
1.5±0.1
5.0±0.3
10±1.0
)
Operating Temperature T opr --10 to +40 °C
Storage T emperature Tstg ---40 to +85 °C
Electrical and Optical Characteristics at Tc=25°C
Threshold Current Ith CW --2040mA
Operating Current Iop Po=3mW --2545mA
Operating Voltage Vop Po=3mW -- 2.2 2.4 V
Lasing W avelength
Beam ❊) Perpendicular
Divergence Parallel
Off Axis Perpendicular ∆θ ⊥ -------±3 deg.
Angle Parallel ∆θ // ------±3 deg.
Differential Efficiency dPo/dIop ----- 0.5 -- mW/mA
Monitoring Output Current Im Po=3mW 0.1 0.2 0.6 mA
❊) Full angle at half maximum note : The above product specifications are subject to change without notice.
Parameter Symbol Condition Min. Typ. Max. Unit
λ
p Po=3mW -- 635 640 nm
θ
⊥ Po=3mW 25 35 40 deg.
θ
// Po=3mW 6 8 10 deg.
Astigmatism As Po=3mW ---8--µm
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
N2798 GI / N2897 GI, (IM
)
No.5854 1/3
Characteristics
0 20406080100
0
1
2
3
4
Output power vs. Forward current
Forward current IF (mA)
Output power Po (mW)
10
100
01020304050
Threshold current vs. Temperature
Threshold current
Ith (mA)
Temperature Tc (°C)
80
60
40
20
0
0.1
0.2
0.3
0.4
0.5
0123
Monitor current Im (mA)
Monitor current vs. Output power
Output power Po (mW)
0
0.2
0.4
0.6
0.8
1.0
-40 -30 -20 -10 0 10 20 30 40
Beam divergence
Relative intensity
Angle θ (deg.)
633
634
635
636
637
638
639
10 20 30 40
Lasing wavelength vs. Temperature
Lasing wavelength λp (nm)
Temperature Tc (°C)
630 632 634 636 638 640
Relative intensity
Output power vs. Lasing wavelength
Po=3mW
Po=2mW
Po=1mW
Lasing wavelength λp (nm)
Tc=25°C
632
352515
25°C
Tc=25°C
Vr(PD)=5V
Po=3mW
Po=3mW
Tc=25°C
θ ⊥
θ //
40°C
DL-3038-023
No.5854 2/3