99
HL6312/13G
AlGaInP Laser Diodes
Description
The HL6312/13G are 0.63 µm band AlGaInP laser diodes with a multi-quantum well (MQW)
structure. Wavelength is equal to He-Ne Gas laser. They are suitable as light sources in bar code
readers, laser levelers and various other types of optical equipment. Hermetic sealing of the package
achieves high reliability.
Features
• Visible light output: λp = 635 nm Typ (nearly equal to He-Ne Gas Laser)
• Optical output power: 5 mW CW
• Low Operating voltage: 2.7 V Max
• Single longitudinal mode
• Built-in photodiode for monitoring laser output
HL6312/13G
100
Absolute Maximum Ratings (TC = 25°C)
Item Symbol Rated Value Unit
Optical output power PO5 mW
Pulse optical output power PO (pulse) 6*1mW
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: 1. Pulse condition : Pulse width ≤ 1 µs , duty ≤ 50%
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 20 45 70 mA
Operating current Iop — 55 85 mA PO = 5 mW
Operating voltage Vop — — 2.7 V PO = 5 mW
Lasing wavelength λp 625 635 640 nm PO = 5 mW
Beam divergence (parallel) θ// 5 8 11 deg. PO = 5 mW
Beam divergence
(perpendicular) θ⊥ 25 31 37 deg. PO = 5 mW
Monitor current Is 0.2 0.4 0.8 mA PO = 5 mW, VR = 5 V
HL6312/13G
101
Typical Characteristic Curves
HL6312/13G
102
Typical Characteristic Curves (cont)
HL6312/13G
103
Typical Characteristic Curves (cont)
HL6312/13G
104
Polarization direction
The polarization direction is TM mode. The polarization direction of 0.63 µm LD’s is different from
that of 0.83/0.78/0.67 µm LD’s. The polarization direction of 0.63 µm LD’s is illustrated in the figure
below.
