
Data Sheet
FOL15DDBA-A31-*****-* / 10mW 1550nm 2.5Gbit/s
Directly Modulated DFB Laser Module
Date November 30, 20043 ODC-2S001D
2/2
Optical Characteristics (TLD=Tset, Tc=25°C, unless otherwise specified)
Parameter
Sym
Min
Typ
Max
Unit
Conditions
Optical Output Power
Pf
10
-
mW
CW
-
120
mA
1527.22nm~1563.86nm,
Pf=10mW,CW,BOL*
1
LD Forward Current
If
-
130
mA
1564.27nm~1610.06nm,
Pf=10mW,CW,BOL*
1
Submount Temperature
Tset
20
-
35
°C
Pf=5mW,CW
LD Forward Voltage
Vf
-
1.8
V
Pf=10mW,CW
Threshold Current
Ith
-
10
20
mA
BOL
Slope Efficiency
η
0.10
0.20
0.35
W/A
Pf=10mW,CW
Input Impedance
Zin
-
25
-
Wavelength
λ
ITU-0.1
λ
ITU
λ
ITU+0.1
nm
Pf=5mW,CW,
λ=1527.22~1610.06,See Table.1
Spectral Width (-20dB fullwidth)
λ
-
0.4
nm
<Pf>=5mW*
2,2.5Gb/s NRZ
Side Mode Suppression Ratio
SMSR
35
45
-
dB
Pf=5mW,CW
Dispersion Penalty
DP
-
2
dB
<Pf>=5mW,2.5Gb/s NRZ,
1800ps/nm(100km) or
2880ps/nm(160km)
Cut off Frequency
fc
2
-
GHz
<Pf>=5mW, -1.5dB Optical
Rise and Fall Time (10-90%)
tr, tf
-
150
ps
<Pf>=5mW,2.5Gb/s NRZ
Optical Isolation
Iso
25
-
dB
Relative Intensity Noise
RIN
-
-145
dB/Hz
Pf=5mW,CW
OpRL<-25dB*
3,
100MHz<f<2.5GHz
Monitor Current
Im
0.05
-
1
mA
Pf=5mW,CW, VrPD=5V
Monitor Dark Current
Id
-
100
nA
VrPD=5V
Tracking Error
TE
-0.5
-
0.5
dB
Im=constant, Tc = -5 to 70°C
TEC Current
Itec
-
1.2
A
Tc=70°C,Pf=5mW,CW
TEC Voltage
Vtec
-
2.4
V
Tc=70°C,Pf=5mW,CW
Thermistor B constant
B
-
3900
-
K
Thermistor Resistance
R
9.5
-
10.5
k
Tset=25°C
*
1 BOL : Beginning of Life *2 <Pf> : Average Power *3 O
pRL : Optical Return Loss
Optical Fiber Pigtail Specifications
Parameter
Specification
Unit
Fiber Type
Corning SMF-28 or equivalent
Flame Retardant Hytrel Coating 0.9mmφ
-
Nominal Fiber Length
Min. 1,000
(Boot edge (fiber side) to connector edge)
mm
Connector Type
SC/SPC Connector
-