
MITSUBISHI LASER DIODES
ML7XX8 SERIES
InGaAsP – MQW – FP LASER DIODES
TYPE
NAME
ML720J8S, ML720K8S
ML725B8F, ML725C8F, ML725J8F
DESCRIPTION
ML7XX8 series are InGaAsP laser diodes which provide
a stable, single transverse mode oscillation with emission
wavelength of 1310nm and standard continuous light output
of 5mW.
ML7XX8 are hermetically sealed devices having the photo
diode for optical output monitoring. This is suitable for such
applications as the light sources for optical communication
systems.
FEATURES
1310nm typical emission wavelength, FP-LDs
Low threshold current, low operating current
Wide temperature range operation (-40 to 85C)
φ5.6mm TO-CA N package
Flat window cap : ML720J8S, ML725B8F
Ball lens cap : ML720K8S, ML725C8F
Aspherical lens cap : ML725J8F
APPLICATION
Optical communication system
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Conditions
Ratings
Unit
Po
Light output power
CW
10[7]
mW
VRL
Laser reverse voltage
-
2
V
VRD
PD reverse voltage
-
20
V
IFD
PD forward current
-
2
mA
Tc
Operation temperature
-
-40 to +85
C
Tstg
Storage temperature
-
-40 to +125
C
ELECTRICAL/OPTICAL CHARACTERISTICS(Tc=25oC)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Ith
Threshold current
CW
3
5
15
mA
Iop
Operation current
CW, Po=5mW
10
20
35
mA
Vop
Operating voltage
CW, Po=5mW
---
1.1
1.5
V
η
Slope efficiency
CW, Po=5mW
0.3[0.2]
0.5[0.35]
0.7[0.5]
mW/mA
λc
Center wavelength
CW, Po=5mW
1290
1310
1330
nm
λ
Spectral Width
CW, Po=5mW,RMS(-20dB)
---
1.0
2.0
nm
θ//
Beam divergence angle(parallel)
CW, Po=5mW
---
25[11]
---
deg.
θ⊥
Beam divergence angle
(perpendicular)
CW, Po=5mW
---
30[11]
---
deg.
tr,tf
Rise and Fall time (20%-80%)
Ib=Ith,Po=5mW,10-90%
---
0.3
0.7
nsec
Im
Monitor Current (PD)
CW, Po=5mW, VRD=1V,
0.1
0.5
0.9
mA
Id
Dark Current (PD)
VRD=10V
---
0.1
A
Ct
Capacitance (PD)
VRD=10V, f=1MHz
---
10
20
pF
Pf <2>
Fiber coupled power
CW, PL=5mW,SI10/125
[0.4/1.5]
[0.8/2.0]
[---]
mW
Df <2>
Fiber coupled distance
CW, PL=5mW,SI10/125 <3>
[5.0/6.0]
[5.8/7.5]
[6.2/9.0]
mm
Note : <1> [ ] applied to the lens cap type.
Note : <2> Pf, Df are applied to the [ball lens type/aspherical lens type].
Note : <3> Df is a distance between reference plane of the base to the fiber.
MITSUBISHI
ELECTRIC
May 2004
Notice: Some parametric limits are subject to change.