HITACHI HL6712G

HL6712G
AlGaInP Laser Diode
Description
The HL6712G is 0.67 µm band AlGaInP index-guided laser diode with a double heterostructure. It is
suitable as light sources for barcode readers, levelers, laser printers, and various other types of optical
equipment. Hermetic sealing of the packages assure high reliability.
Features
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Visible light output at wavelengths up to 680 nm
Single longitudinal mode
Low threshold current: 40 mA Typ
Low astigmatism: 10 µm Typ
Operates at temperatures up to 50°C
Built-in monitor photodiode
131
HL6712G
Absolute Maximum Ratings (TC = 25°C)
Item
Symbol
Rated Value
Unit
Optical output power
PO
5
mW
1
Pulse optical output power
PO (pulse)
6*
LD reverse voltage
VR (LD)
2
V
PD reverse voltage
VR (PD)
30
V
Operating temperature
Topr
–10 to +50
°C
Storage temperature
Tstg
–40 to +85
°C
Note:
mW
1. Maximum 50% duty cycle, maximum 1µs pulse width
Optical and Electrical Characteristics (TC = 25°C)
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Optical output power
PO
5
—
—
mW
Kink free
Threshold current
Ith
—
40
65
mA
Slope efficiency
η
0.3
0.55
0.7
mW/mA
3 mW/I(4 mW)–I (1 mW)
Lasing wavelength
λp
660
670
680
nm
PO = 5 mW
Beam divergence (parallel)
θ//
5
8
11
deg.
PO = 5 mW, FWHM
Beam divergence (perpendicular)
θ⊥
22
27
37
deg.
PO = 5 mW, FWHM
Monitor current
Is
0.25
0.6
1.25
mA
PO = 5 mW, VR (PD) = 5 V
Astigmatism
AS
—
10
—
µm
PO = 5 mW, NA = 0.4
132
HL6712G
Typical Characteristic Curves
133
HL6712G
Typical Characteristic Curves (cont)
134
HL6712G
Typical Characteristic Curves (cont)
135