HL6724MG
AlGalnP Laser Diode
Literature Order Number
Rev 0
February 1997
Description
The HL6724MG is a 0.67 µm band AlGalnP laser diode with a multi-quantum well (MQW) structure. It
is suitable as a light source for laser pointers and optical equipments for amusement.
Features
• Visible light output: 670nm Typ
• Optical output power: 5 mW CW
• Low operating current: 35 mA Typ
• Low operating voltage: 2.7 V Max
HL6724MG
2
Absolute Maximum Ratings (TC = 25°C)
Item Symbol Rated Value Unit
Optical output power PO5mW
Pulse optical output power PO (pulse) 6*1mW
LD reverse voltage VR (LD) 2V
PD reverse voltage VR (PD) 30 V
Operating temperature Topr –10 to +50 °C
Storage temperature Tstg –40 to +85 °C
Note: 1. Pulse condition: Pulse width ²1µs, duty ²50%
Optical and Electrical Characteristics (TC = 25°C)
Item Symbol Min Typ Max Unit Test Conditions
Optical output power PO5 — — mW Kink free
Threshold current Ith — 25 — mA
Operating current Iop — 35 — mA PO = 5 mW
Operating voltage Vop — — 2.7 V PO = 5 mW
Lasing wavelength λp 660 670 680 nm PO = 5 mW
Beam divergence (parallel) θ// 5 8 11 deg. PO = 5 mW
Beam divergence (perpendicular) θ⊥22 30 40 deg. PO = 5 mW
Monitor current IS— 0.9 — mA PO = 5 mW, VR(PD) = 5 V
HL6724MG
3
Typical Characteristic Curves
5
4
3
2
1
00 20 40 60 80 100
Forward current, I
F
(mA)
Optical output power, P
O
(mW)
Optical Output Power vs.
Forward Current
T
C
= -10°C
25°C
50°C
2.0
1.5
1.0
0.5
0051342
Optical output power, P
O
(mW)
Optical Output Power vs.
Monitor Current
Monitor current, I
S
(mA)
T
C
= 25°C
V
R (PD)
= 5 V
HL6724MG
4
Typical Characteristic Curves (cont)
–40 –20 0 20 40
Angle (deg)
Relative intensity
Parallel
Perpendicular
P
O
= 5 mW
Far Field Pattern
0
0.2
0.4
0.6
0.8
1T
C
= 25 °C
P
O
= 5 mW
660 685665 680675
Wavelength, λp (nm)
P
O
= 3 mW
P
O
= 1 mW
Lasing Spectrum
Relative intensity
T
C
= 25
670
°C
100
-0 10 20 30 40
Case temperature, T
C
(°C)
Threshold current, I
th
(mA)
Threshold Current vs.
Case Temperature
10 500
1.0
0.8
0.6
0.4
0.2
0-10 10 20 30 40 50
Case Temperature, T
Slope Efficiency, ηs (mW/mA)
Slope Efficiency vs.
Case Temperature
°C
C
()
0
HL6724MG
5
Typical Characteristic Curves (cont)
-10 40 500302010
2.0
1.5
1.0
0.5
0
Monitor Current vs.
Case Temprature
Case temperature, T
C
(°C)
Monitor current, I
S
(mA)
P
O
= 5 mW
V
R (PD)
= 5 V
674
670
668
666
-10 10 403020
Case temperature, T
C
(°C)
Lasing Wavelength vs.
Case Temperature
Lasing wavelength, λp (nm)
678
680
682 P = 5 mW
O
050
672
676
20
15
10
5
001 32
Optical output power, P
O
(mW)
Astigmatism vs.
Optical Output Power
Astigmatism, As(µm)
T
C
= 25°C
NA= 0.55
45
500
400
300
200
100
0051342
Optical output power, P
O
(mW)
Polarization Ratio vs.
Optical Output Power
Polarization Ratio
T
C
= 25°C
NA= 0.4
NA= 0.25
