HL6504FM
Visible High Power Laser Diode for DVD-RAM
ADE-208-825A (Z)
2nd Edition
Dec. 2000
Description
The HL6504FM is a 0.66
µm
band AlGalnP laser diode (LD) with a multi-quantum well (MQW) structure.
It is suitable as a light source for large capacity optical disc memories, such as DVD-RAM, and various
other types of optical equipment.
Hermetic sealing of the small package (φ 5.6 mm) assures high reliability.
Application
•
Optical disc memories
•
Optical equipment
Features
•
•
•
•
High output power
Visible light output
Small package
Low astigmatism
: 50 mW (CW)
:
λp
= 664 nm Typ
:
φ
5.6 mm
: 5
µm
Typ (P
O
= 5 mW)
Package Type
•
HL6504FM: FM
Internal Circuit
1
3
LD
2
HL6504FM
Absolute Maximum Ratings
(T
C
= 25°C)
Item
Optical output power
Pulse optical output power
Laser diode reverse voltage
Operating temperature
Storage temperature
Symbol
P
O
P
O
(pulse)
V
R(LD)
Topr
Tstg
Value
50
70 *
2
−10
to +60
−40
to +85
Unit
mW
mW
V
°C
°C
Note: Pulse condition : Pulse width = 100 ns, duty = 50%
Optical and Electrical Characteristics
(T
C
= 25°C)
Items
Optical output power
Pulse optical output power
Threshold current
Operating current
Operating voltage
Beam divergence
parallel to the junction
Beam divergence
parpendicular to the junction
Asitgmatism
Lasing wavelength
Symbol
P
O
P
O
(pulse)
Ith
Iop
V
OP
θ//
θ⊥
A
S
λp
Min
50
70
30
—
2.1
7
18
—
655
Typ
—
—
45
115
2.6
8.5
21
5
664
Max
—
—
60
135
3.0
11
26
—
667
Unit
mW
mW
mA
mA
V
deg.
deg.
µm
nm
Test Conditions
Kink free *
Kink free *
—
P
O
= 50 mW
P
O
= 50 mW
P
O
= 50 mW
P
O
= 50 mW
P
O
= 5 mW, NA = 0.55
P
O
= 50 mW
Note: Kink free is confirmed at the temperature of 25°C.
2
HL6504FM
Typical Characteristic Curves
Optical Output Power vs. Forward Current
50
T
C
= 25°C
40
30
20
10
0
T
C
= 0°C
T
C
= 60°C
Pulse Optical Output Power vs. Forward Current
80
T
C
= 25°C
60
Optical output power, P
O
(mW)
Optical output power, P
O
(mW)
T
C
= 0°C
40
T
C
= 60°C
20
pw = 100 ns
duty = 50%
0
0
40
80
120
160
200
0
40
80
120
160
200
Forward current, I
F
(mA)
Forward current, I
F
(mA)
Threshold Current vs. Case Temperature
100
Slope efficiency,
η
S
(mW/mA)
Threshold current, Ith (mA)
Slope Efficiency vs. Case Temperature
1.0
0.8
0.6
0.4
0.2
0
50
30
10
0
10
20
30
40
50
60
70 80
0
10
20
30
40
50
60
70
80
Case temperature, T
C
(°C)
Case temperature, T
C
(°C)
3
HL6504FM
Typical Characteristic Curves
(cont)
Lasing Spectrum
675
Lasing Wavelength,
λp
(nm)
T
C
= 25°C
P
O
= 50 mW
P
O
= 50 mW
670
665
660
655
650
Wavelength vs. Case Temperature
Relative intensity
P
O
= 35 mW
P
O
= 10 mW
P
O
= 5 mW
655
660
Wavelength,
λp
(nm)
665
0
10
20
30
40
50
60
70
80
Case temperature, T
C
(°C)
Far Field Pattern
1.0
P
O
= 50 mW
T
C
= 25°C
Relative intensity
Perpendicular
0.6
0.4
0.2
0
−40 −30 −20 −10
0
Astigmatism, A
S
(µm)
0.8
8
6
4
2
0
10 20 30 40
10
Astigmatism vs. Optical Output Power
T
C
= 25°C
NA = 0.55
Parallel
0
10
20
30
40
50
Angle,
θ
(deg.)
Optical output power, P
O
(mW)
4
HL6504FM
Typical Characteristic Curves
(cont)
Frequency Response
3 dB/div
P
O
= 3 mW
80
Survival rate (%)
Gain (dB)
60
40
20
0
0
1
2
Applied voltage (kV)
3
Forward
N = 5 pcs
∆Iop ≤
10%
Electrostatic Destruction (MIL standard)
100
1M
10M
100M
1G 3G
Frequency (Hz)
5
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