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MITSUBISHI LASER DIODES
ML4XX26 SERIES
FOR OPTICAL INFORMATION SYSTEMS
TYPE
NAME
ML40126N
ML44126N,ML44126R
FEATURES
Output 5mW(CW)
Built-in monitor photodiode
Low droop
APPLICATION
Laser Beam Printing, Digital Copy
ELECTRICAL / OPTICAL CHARACTERISTICS (Tc=25C)
MITSUBISHI
ELECTRIC
FEATURES
ML4xx26 series is AlGaAs laser diodes which
provide a stable, single transverse mode ocillation
with emission wavelength of 785nm and standard
continuous light output of 5mW.
ML4xx26 are hermetically sealed devices having
the photodiode for optical output monitoring.
ML4xx26 is produced by the MOCVD crystal
growth method which is excellent in mass production
and characteristics uniformity.
Note 2: Applicable to ML44126R and ML44126N
Note 3: RL=the load resistance of photodiode
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Note1: The maximum rating means the limitation over which the laser should not be operated even instant time,
and this does not mean the guarantee of its lifetime.As for the reliability,please refer to the reliability report from Mitsubishi
Semiconductor Quality Assurance Department.
as of February '00
8
CW
-
-
-
-
-
mW
Light output power
Po
C
C
mA
V
V
2
30
10
-40~ +60
-40~ +100
Reverse voltage (Photodiode)
Forward current (Photodiode)
Case temperature
Storage temperature
Tstg
Tc
IFD
VRD
Reverse voltage (laser diode)
VRL
Unit
Ratings
Conditions
Parameter
Symbol
-
-
%
6
CW,Po=3mW
Droop
D
pF
-
7
-
V
RD
=5V, f=1MHz
Capacitance (Photodiode)
Ct
A
0.5
mA
-
-
36
15
nm
800
V
2.5
mW/mA
0.45
mA
70
0.35
2
785
11
29
0.45
0.90
-
-
-
-
V
RD
=10V
CW,Po=5mW, V
RD=
1V
R
L
=10
(Note3)
Operation current
Monitoring output current
(Photodiode)
Dark current (Photodiode)
ID
Im(Note2)
Im
Iop
22
CW,Po=5mW
Beam divergence angle
(perpendicular)
Threshold current
Ith
40
mA
40
25
Unit
Max
Typ.
CW,Po=5mW
CW,Po=5mW
CW,Po=5mW
CW,Po=5mW
0.25
-
770
8
Operating voltage
Peak wavelength
Beam divergence angle
(parallel)
//
p
Vop
Slope efficiency
CW,Po=5mW
-
-
CW
MIn
Test conditions
Parameter
Symbol
( 3 / 4 )
60
80
20
100
40
0
Operating Current, Iop (mA)
Light Output Power, Po (mW)
0
1
2
3
4
5
Tc=10 25 40 50 60
C
CW
//
=11
=29
0
20
40
-40
60
-20
-60
Angle (deg.)
Relative Intensity (%)
Tc=25
C
Po=5mW
0
20
40
60
80
100
MITSUBISHI
ELECTRIC
as of February '00
ML4XX26 SERIES
MITSUBISHI LASER DIODES
FOR OPTICAL INFORMATION SYSTEMS
780
785
790
795
800
805
810
0
1 0 2 0 3 0 4 0 5 0 6 0 7 0
Peak W
avel
engt
h,
p (
n
m
)
Case Temperature, Tc (C)
1 0
100
0
1 0 2 0 3 0 4 0 5 0 6 0 7 0
Th
r
e
s
hol
d C
u
r
r
e
nt
,
I
t
h
(
m
A
)
Case Temperature, Tc (C)
Typical Chracteristics
Light Output Power vs. Current (CW)
Far-Filed-Patterns
Threshold Current vs. Temperature
Peak Wavelength vs. Temperature
Po=5mW
CW
Po=5mW
CW
( 4 / 4 )
MITSUBISHI
ELECTRIC
as of February '00
ML4XX26 SERIES
MITSUBISHI LASER DIODES
FOR OPTICAL INFORMATION SYSTEMS
0
0.1
0.2
0.3
0.4
0.5
0.6
0
1
2
3
4
5
6
M
o
n
i
to
r
C
u
rr
e
n
t
,
Im (mA
)
L ig h t Ou tp u t P o w e r (mW)
Monitor Photodiode Current
Typical Chracteristics
Tc=25C
CW
788
789
790
791
792
793
0
1
2
3
4
5
6
7
8
Peak W
avel
engt
h,
p (
n
m
)
Light Output Power, Po (mW)
Tc=25C
CW
Peak Wavelength vs. Light Output Power
ML40126N
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