1,550nm DWDM Direct
Modulation DFB Laser
FLD5F15CX-E
FEATURES
• Direct Modulation Laser for WDM systems
• Optimized for Long Distance Transmission (Dispersion 1800ps/nm)
• Peak wavelength 1527.99 to 1563.05nm (C-band: 191.8 to 196.2THz,
100GHz spacing)
• Output Power: 2mW
• 14-pin Butterfly type package
• Built-in Optical Isolator, Power Monitor PIN-PD, Thermistor,
and Cooler
• Single Mode Fiber
APPLICATIONS
This laser is intended for the application of 2.5 Gb/s
long haul Dense Wavelength Division Multiplexing (DWDM).
Transmission spans of 100km (1800ps/nm) are possible.
DESCRIPTION
The laser is capable of 2.5 Gb/s transmission. It is packaged in a “butterfly” type module.
The module employs a highly stable optical coupling system, coupling the laser output through a
built-in optical isolator into a single mode fiber pigtail. The module also includes a monitor photodiode,
a thermoelectric cooler (TEC), and thermistor. This device is designed for use in DWDM direct
modulation transmission systems. Selected wavelengths specified to the ITU-T grid are available.
ABSOLUTE MAXIMUM RATINGS (T =25°C, unless otherwise specified)
c
Ratings
Parameter
Symbol
Condition
Unit
Min.
Max.
+85
+70
5
T
Storage Temperature
Operating Case Temperature
Optical Output Power
LD Forward Current
LD Reverse Voltage
PD Reverse Voltage
PD Forward Current
°C
°C
-
-40
stg
T
-
-20
op
P
f
CW
CW
mW
mA
V
-
-
-
I
150
2
F
V
R
-
-
V
V
-
20
10
DR
I
-
-
mA
-
PF
Cooling
Heating
Cooling
Heating
2.5
-
V
c
Cooler Voltage
V
A
-2.5
-
1.4
-
Cooler Current
I
c
-0.9
T
Thermistor Temperature
ATC Operation
260°C
-20
+70
10
°C
th
T
Lead Soldering Time
-
-
-
sec
sold
X
Top<30°C
Tstg<30°C
95
Environmental Operating Humidity
Environmental Storage Humidity
%
%
op
X
95
st
Edition 1.1
July 2004
1