MITSUBISHI LASER DIODES
ML9XX31 SERIES
InGaAsP DFB-LASER DIODE WITH EA MODULATOR
TYPE
NAME ML9SM31
DESCRIPTION
ML9XX31 series are DFB (Distribut ed Feedback) laser diodes with a
monolithically integrated EA modulator, suitable light source for 10Gbps
or 2.5Gbps application (Single channel / DWDM ).
Available wavelengths are from 1530nm to 1565nm with 0.8nm spacing.
ML9SM31 is supplied with the chip-on-carrier type package.
FEATURES
• A vailable distance
ML9SM31-01 series : 50km(Max) at 10Gbps
ML9SM31-02 series : 700km(Max) at 2.5Gbps
• High extinction ratio (Min. 1 1dB at 2. 5Gbps, Typ. 11dB at 10Gbps)
• High - side mode suppression ratio (Typ. 40dB)
• High speed response (Typ. 30psec)
APPLICATION
2.5Gbps long-haul transmission system
10Gbps transmission system
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Conditions Ratings Unit
IF Forward current (Laser diode) CW 200 mA
VRL Reverse voltage (Laser diode) - 2 V
VEA Reverse voltage (Modulator) - -3 V
Tc Case temperature - +15 to +35 degC
Tstg Storage temperature - -40 to +100 degC
ELECTRICAL/OPTICAL CHARACTERISTICS (Tc=25degC)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
Ith Threshold current CW, Vmod=0V --- 10 30 mA
Iop Operation current CW, Po=5mW, Vmod=0V --- 60 90 mA
Vop Operating voltage CW, Po=5mW, Vmod=0V --- 1.2 1.8 V
λp Peak wavelength CW, If>Iop, Vmod=0V -0.4 code list +0.4 nm
θ// Beam divergence angle (parallel) CW, Po=5mW, Vmod=0V --- 30 --- deg.
θ⊥ Beam diver gence angle
(perpendicular) CW, Po=5mW, Vmod=0V --- 45 --- deg.
Pm Monitoring output power CW, Po=5mW, Vmod=0V --- 1.0 --- mW
ML9SM31-01 series for 10Gbps
fc Cut off frequency CW, If>Iop, Vmod=-1V 10 14 --- GHz
tr,tf Rise and fall time (10%-90%) --- 30 40 psec
SMSR Side mode suppression ratio 35 40 --- dB
Ex Extinction ratio
9.95328Gbps, NRZ, PRBS 223- 1
If>Iop, Vpp=2.5V,
Voffset=0 to -1.0V 10 11 --- dB
Pp Dispersion penalty ditto
SMF 50km @BER=10-10 --- --- 2.0 dB
ML9SM31-02 series for 2.5Gbps
fc Cut off frequency CW, If>Iop, Vmod=-1V 4 --- --- GHz
tr,tf Rise and fall time (10%-90%) --- --- 120 psec
SMSR Side mode suppression ratio 35 40 --- dB
Ex Extinction ratio
2.48832Gbps, NRZ, PRBS 223-1
If>Iop, Vpp=2.5V,
Voffset=0 to -1.0V 11 --- --- dB
Pp Dispersion penalty ditto
SMF 700km @BER=10-10 --- --- 2.0 dB
MITSUBISHI
ELECTRIC
Fe
b
, 20
0
4
PRELIMINARY
Notice: Some parametric limits are subject to change.
MITSUBISHI LASER DIODES
ML9XX31 SERIES
InGaAsP DFB-LASER DIODE WITH EA MODULATOR
MITSUBISHI
ELECTRIC
Fe
b
, 20
0
4
OUTLINE DRAWINGS
0.75
0.1
(0.225)
0.6
0.15
Rear
Front
0.15
1.08
Beam
Point
0.38±0.05
0.1 ~
0.3
(1)
(2)
(3) (3)
0.75
0.1
(0.225)
0.6
0.15
Rear
Front
0.15
1.08
Beam
Point
0.38±0.05
0.1 ~
0.3
(1)
1.08
Beam
Point
0.38±0.05
0.1 ~
0.3
(1)
(2)
(3) (3)
Wavelength code list
Code Wavelength(nm)
00 1530 to 1565
Å non WDM (single channel)
Code Wavelength(nm) Code Wavelength(nm)
01 1529.55 24 1547.72
02 1530.33 25 1548.51
03 1531.12 26 1549.32
04 1531.90 27 1550.12
05 1532.68 28 1550.92
06 1533.47 29 1551.72
07 1534.25 30 1552.52
08 1535.04 31 1553.33
09 1535.82 32 1554.13
10 1536.61 33 1554.94
11 1537.40 34 1555.75
12 1538.19 35 1556.55
13 1538.98 36 1557.36
14 1539.77 37 1558.17
15 1540.56 38 1558.98
16 1541.35 39 1559.79
17 1542.14 40 1560.61
18 1542.94 41 1561.42
19 1543.73 42 1562.23
20 1544.53 43 1563.05
21 1545.32 44 1563.86
22 1546.12 45 1564.68
23 1546.92 46 1565.50
Ordering information
ML9SM31-01-01
Wavelength code
Part number (-01 for 10Gbps, -02 for 2.5Gbps)
Device type
ML9SM31
PRELIMINARY
Notice: Some parametric limits are subject to change.
*) The LD and EAM cathode is co ntacted
with the back side of the carrier.
ML9SM31
(1) Case
EAM LD
(3) (2)
