MITSUBISHI (OPTICAL DEVICES)
1.55 mm DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
Mod ule type FU-68PDF-V510MxxB is a 1.55mm DFB-
LD module with polarization maintaining optical fiber.
Th is module is suitable to a CW light source for
external modulator for use in 2.5Gb/s and 10Gb/s
digital optical communication systems.
Th is module is pre pared in accordance with ITU-T
reco mmend ation wavelength channel plan for Dense-
Input impedance is 25W
Multi qu antum wells (MQW) DFB Laser Diode
Emission wavelength is in 1.55mm band
Polarization maintaining optical fiber pig-tail
Built-in optical isolator
Built-in thermal electric cooler
With photodiode for optical output monitor
High speed transmission systems (~10Gb/s)
ABSOLUTE MAXIMUM RATINGS (Tld=Tset)
Laser diode Optical output
electric co oler Cooler voltage
Operating case temperature
-20 ~ 70
-40 ~ 85
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.