1,550nm Continuous
Wave DFB Laser
FLD5F15CX-L
OPTICAL AND ELECTRICAL CHARACTERISTICS (T =T , T =25°C, BOL, unless otherwise specified)
set
L
c
Limits
Typ.
-
Parameter
Symbol
Test Conditions
Unit
°C
Min.
15
Max.
35
Laser Set Temperature (BOL)
Optical Output Power
Threshold Current
-
-
-
T
set
P
40
3
-
-
-
mW
mA
f
I
45
th
V
Forward Voltage
Slope Efficiency
-
-
-
-
-
3.0
-
V
F
η
0.14
mW/mA
I
Operating Forward Current
Peak Wavelength
-
-
-
350
mA
nm
pm
op
λ
ORL>40dB
20 years
Note (3)
-
p
∆λ
Wavelength Drift
-
200
1
Wavelength Stability with
Case Temperature
Tc=0 to +70°C
-
-1
-
pm/°C
Spectral Width (-3dB)
∆λ
-
5
-
10
-
MHz
dB
ORL>40dB
Pf=40mW
Side Mode Suppression
Sr
35
I
Monitor Current
0.1
-
-
-
2.0
mA
nA
m
Idm
V
=5V
PD
Monitor Dark Current
100
Monitor Capacitance
C
t
V
=5V, f=1 MHz
PD
-
-
-
10
pF
dB
Im=constant,
Tc=0 to +70°C
Tracking Error (Note 1)
TE
-0.5
+1.0
I
Optical Isolation
Tc=0 to +70°C
22
20
-
-
-
-
dB
dB
S
Polarization Extinction Ratio
PER
CW, ORL>40dB
average of f=DC to 7.5GHz
-
-
-
-
-
-
-140
1.4
Relative Intensity Noise
Cooler Current
dB/Hz
RIN
Ic
A
V
T =Tset,
L
Tc=+70°C,
4.2
Cooler Voltage
Vc
Pc
Rth
B
-
-
5.9
10.5
3,630
W
kΩ
K
Cooler Power
9.5
10.0
3,450
Thermistor Resistance
Tc, T =25°C
L
Thermistor B Constant (Note 2)
3,270
Note 1. TE=10*log[Pf(Tc)/Pf(25)]
Note 2. Relation between resistance and temperature (°K) is: Rth (T) = Rth (25)*exp[B(1/T-1/298)]
Note 3. The selected wavelength is available in accordance with Table 1.
2