MITSUBISHI (OPTICAL DEVICES)
FU-68SDF-V802MxxB
1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
DESCRIPTION
m
Module type FU-68SDF-V802MxxB is a 1.55 m DFB-
LD module with single-mode optical fiber.
This module is suitable to a directly modulated light
source for use in 2.5Gb/s digital optical
communication systems.
This module is prepared in accordance with ITU-T
recommendation wavelength channel plan for Dense-
WDM transmission.
FEATURES
Multi quantum wells (MQW) DFB Laser Diode
module
Input impedance is 25W
Emission wavelength is in 1.55mm band
High-speed response
Built-in optical isolator
Built-in thermal electric cooler
Butterfly package
With photodiode for optical output monitor
APPLICATION
High speed transmission systems (~2.5Gb/s)
Dense-WDM systems
ABSOLUTE MAXIMUM RATINGS (Tld=Tset)
Parameter
Optical output
Symbol
Pf
Conditions
CW
Rating
6
Unit
mW
Laser diode
power
Forward current
Reverse voltage
Reverse voltage
Forward current
Cooler current
Cooler voltage
If
Vrl
Vrd
Ifd
Ipe
Vpe
CW
150
2
20
2
1.3
3.1
mA
V
V
mA
A
V
Photodiode
Thermo-
electric cooler
(Note)
Operating case temperature
Tc
-20 ~ 70
-40 ~ 85
°C
°C
Storage temperature
Tstg
Note) Even if the thermo-electric cooler (TEC) is operated within the rated conditions, uncontrolled current loading
or operation without heatsink may easily damage the module by exceeding the storage temperature range.
Thermistor resistance should be properly monitored by the feedback circuit during TEC operation to avoid
the catastrophic damage.