Mitsubishi Electric Corporation Semiconductor Group FU-68PDF-510M65B, FU-68PDF-510M64B, FU-68PDF-510M63B, FU-68PDF-510M62B, FU-68PDF-510M61B Datasheet
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MITSUBISHI (OPTICAL DEVICES)
FU-68PDF-V510MxxB
1.55 mm DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
DESCRIPTION
Module t ype FU-68PDF-V510MxxB is a 1.55mm DF B LD module with polarization maintaining optical fiber.
This module is suitable to a CW light source for
external modulator for use in 2.5Gb/s and 10Gb/s
digital optical communication systems.
This module is prepared in accordance with ITU-T
recommendation wavelength channel plan for D enseWDM transmission.
FEATURES
Input impedance is 25W
Multi quantum wells (MQW) DFB Laser Diode
module
Emission wavelength is in 1.55mm band
Polarization maintaining optical fiber pig-tail
Built-in optical isolator
Built-in thermal electric cooler
Butterfly package
With photodiode for optical output monitor
APPLICATION
High speed transmission systems (~10Gb/s)
Dense-WDM systems
ABSOLUTE MAXIMUM RATINGS (Tld=Tset)
Parameter Symbol Conditions Rating Unit
Optical output
power
Pf CW 15 mW
Forward current If CW 150 mA
Laser diode
Reverse voltage Vrl
2V
Reverse voltage Vrd 20 VPhotodiode
Forward current Ifd
2mA
Cooler current Ipe 1.3 AThermo-
electric cooler
(Note)
Cooler voltage Vpe
3.1 V
Operating case temperature Tc -20 ~ 70
°C
Storage temperature Tstg -40 ~ 85
°C
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.
MITSUBISHI (OPTICAL DEVICES)
FU-68PDF-V510MxxB
1.55 mm DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
ELECTRICAL/OPTICAL CHARACTERISTICS (Tld=Tset, Tc=25°C unless otherwise noted)
Parameter Symbol Test Conditions Limits Unit
Min. Typ. Max.
Threshold current Ith CW - 10 25 mA
Operating current Iop CW, Pf=10mW - - 100 mA
Operating voltage Vop CW, Pf=10mW - - 1.8 V
Input impedance Zin Pf=10mW - 25 -
W
Light-emission central
wavelength
lc
CW, Pf=10mW (Note 1) nm
Central wavelength drift with
case temp.
Dlc/DTc Tc=-20~70°C
-1 - 0
pm/°C
Laser operating temperature Tset - 20 - 35 °C
Spectral line width
Df
CW, Pf=10mW - - 20 MHz
Side mode suppression ratio Sr CW, Pf=10mW 33 40 - dB
Cutoff frequency
(-1.5dB optical)
fc Pf=10mW 2 - - GHz
Polarization extinction ratio Ex CW, Pf=10mW 20 25 - dB
Relative intensity noise Nr CW, Pf=10mW,
0.5~3GHz
- -155 -145 dB/Hz
Tracking error
(Note 2)
Er
Tc=-20~70°C,
APC, ATC
- - 0.5 dB
Differential efficiency
h
CW, Pf=10mW 0.1 - - mW/
mA
Monitor current Imon CW, Pf=10mW, Vrd=5V 0.2 - 2 mA
Tc=25°C35--Optical isolation Iso
Tc=-20~70°C
23 - -
dB
Dark current (PD) Id
Vrd=5V, Tc=-20~70°C
- - 0.1
mA
Capacitance (PD) Ct Vrd=5V, f=1MHz - - 10 pF
Note 1) See Table 1.
Note 2) Er=max|10´log(Pf / Pf@25°C)|
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