1,310nm DFB
CATV Laser
FLD3F8CZ
FEATURES
• Direct Modulation DFB Laser
• Built-in TEC, Thermistor and Monitor PD
• Optical Isolator
• 14-Pin Butterfly Type Module
• 78 Channel NTSC Loading
(112 Channel device available)
• Low Residual CSO & CTB
• 5.5 dB Link Budget Available
• Suitable for Narrow Cast Configuration
APPLICATIONS
This DFB laser is intended for application in analog AM, CATV
at 1,310nm. Transmission spans of 15 km are possible without
amplification.
DESCRIPTION
This DFB laser for analog AM application is a middle power laser capable of carrying 78 channels
with excellent CSO, CTB, and CNR performance. It is packaged in a ‘butterfly’ type module.
The module employs a cost effective 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 a thermistor.
ABSOLUTE MAXIMUM RATINGS (T =25°C, unless otherwise specified)
c
Ratings
Parameter
Symbol
Condition
Unit
Min.
Max.
T
Storage Temperature
Operating Case Temperature
Optical Output Power
LD Forward Current
LD Reverse Voltage
PD Reverse Voltage
PD Forward Current
°C
°C
-
-40
+70
stg
T
-
-20
+65
8
op
P
f
CW
CW
mW
mA
V
-
-
-
-
-
I
150
2
F
V
R
-
-
V
V
20
DR
I
10
+2.5
-
mA
-
PD
Cooling
Heating
Cooling
Heating
-
V
c
TEC Voltage
V
A
-2.0
-
+1.4
-
TEC Current
I
c
-0.5
T
Thermistor Temperature
ATC Operation
260°C
-20
+65
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 1.2
July 2004
1