MITSUBISHI LASER DIODES
ML7xx19 SERIES
1310nm InGaAsP FP LASER DIODES
TYPE
NAME ML720J19S, ML720K19S, ML728C19S
ML725B19
F
, ML725C19F
DESCRIPTION
ML7XX19 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.
ML7XX19 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 up to 2.5Gbps transmission applications.
FEATURES
•1310nm typical emission wavelength, FP-LDs
•Wide temperature range operation(-40 to 85ºC)
•φ5.6mm TO-CA N package
Flat window cap : ML720J19S, ML725B19F
Ball lens cap : ML720K19S, ML725C19F
•φ3.8mm TO-CA N package
Ball lens cap : ML728C19S
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 ºC
Tstg Storage temperature -
-40 to +100 ºC
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[3mW] 10 20 30 mA
Vop Operating voltage CW, Po=5mW[3mW] --- 1.1 1.5 V
η Slope efficiency CW, Po=5mW[3mW] 0.3[0.2] 0.45[0.35] 0.6[0.5] mW/mA
λc Center wavelength CW, Po=5mW[3mW] 1290 1310 1330 nm
∆λ Spectral Width CW, Po=5mW[3mW],RMS(-20dB) --- 1.0 2.0 nm
θ// Beam divergence angle(parallel) CW, Po=5mW[3mW] --- 25[11] --- deg.
θ⊥ Beam divergence angle
(perpendicular) CW, Po=5mW[3mW] --- 30[11] --- deg.
tr,tf Rise and Fall time (20%-80%) Ib=Ith,Po=5mW[3mW],20-80% --- 0.1 0.15 nsec
Im Monitor Current (PD) CW, Po=5mW[3mW], VRD=1V, 0.1 0.5 0.9 mA
Id Dark Current (PD) VRD=10V --- --- 0.1
µA
Ct Capacitance (PD) VRD=10V, f=1MHz --- 10 20 pF
Pf <2> CW, PL=3mW,SI10/125 0.2 0.5 --- mW
ML720K19S
ML725C19F 5.0 5.8 6.2
Df <2>
Fiber Coupling characteristics
at peak coupling <3> CW, PL=3mW,SI10/125
ML728C19S 3.0 3.4 3.8
mm
Note : <1> [ ] applied to the lens cap type.
Note : <2> Pf, Df are applied to the ball lens type.
Note : <3> Df is a distance between reference plane of the base to the fiber.
MITSUBISHI
ELECTRIC
M
a
y
20
0
4
Notice: Some parametric limits are subject to change.
ML720J19S
ML725B19F
ML720K19S
ML725C19F
MITSUBISHI
ELECTRIC
May 200
4
MITSUBISHI LASER DIODES
ML7xx19 SERIES
1310nm InGaAsP FP LASER DIODES
OUTLINE DRAWINGS
Dimension : mm
Dimension : mm
(1)
φ1.0Min.
φ1.5Min.
φ3.55±0.1
φ5.6 +0
-0.03
1.27 ±0.03
0.25±0.03
18 ±1 2.1±0.15
1.2
±0.1
4-φ0.45±0.05
(2)
Ｘ
1±0.1
2-90°
Ｙ
φ2.0±0.25
(P.C.D.)
φ4.25
(3)
(4)
(0.25)
(0.25)
Reference Plane
Emitting Facet
(1) (2)
(Glass)
(1)
φ1.5±0.005
φ3.55±0.1
φ5.6 +0
-0.03
1.27
18 ±1
3.9 ±0.2
1.2
±0.1
4-φ0.45±0.05
(2)
Ｘ
1±0.1
2-90°
Ｙ
φ2.0±0.25
(P.C.D.)
φ4.25
(3)
(4)
(0.25)
(0.25)
Reference Plane
Emitting Facet
(1) (2)
(3.05)
(5.8)
±0.03
Case
(1)
(2)
(3)
(4)
PD
LD
Pin Connection
( Top view )
ML720J19S
ML725B19F
Case
(1)
(2)
(3)
(4)
PD
LD
Case
(1)
(2)
(3)
(4)
PD
LD
Pin Connection
( Top view )
ML720K19S
ML725C19F
Case
(1)
(2)
(3)
(4)
PD
LD
ML728C19S
MITSUBISHI
ELECTRIC
M
a
y
20
0
4
MITSUBISHI LASER DIODES
ML7xx19 SERIES
1310nm InGaAsP FP LASER DIODES
OUTLINE DRAWINGS
φ3.8
(3)
(4)
(1)
7±0.5 1.0±0.1
4-φ0.35±0.03
(2)
φ1.43
(P.C.D.)
1.4
Reference Plane
Emitting Facet
φ2.92±0.03
(Df=3.4)
(2.6)
(φ3.7)
+0
-0.03
X
(R0.13MAX)
Case
(1)
(2)
(3)
(4)
PD
ML728C19S
Pin Connection
LD
( Top view )
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-60 -40 -20 0 20 40 60
Angle (°)
Relative light output
θ⊥
θ//
Po=5mW
Tc=25°C
-80
-70
-60
-50
-40
-30
1295 1305 1315 1325 1335 1345
Wavelength (nm)
Relative intensity (dB)
Po=5mW, CW
Tc=25°C
0
2
4
6
8
10
0 10 20 30 40 50 60
Forward current If (mA)
Light output Po (mW)
25°C
50°C
75°C
85°C
ML7xx19 SERIES
MITSUBISHI LASER DIODES
1310nm InGaAsP FP LASER DIODE
TYPICAL CHARACTERISTICS
Fig. 1 Light output v.s. forward current
Fig. 2 Spectrum
Fig. 3 Far field pattern
