MITSUBISHI (OPTICAL DEVICES)
FU-68PDF-V510MxxB
1.55
m
m DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
DESCRIPTION
Mod ule type FU-68PDF-V510MxxB is a 1.55
m
m 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-
WDM transmission.
FEATURES
Input impedance is 25
W
Multi qu antum wells (MQW) DFB Laser Diode
module
Emission wavelength is in 1.55
m
m 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
2
V
Reverse voltage
Vrd
20
V
Photodiode
Forward current
Ifd
2
mA
Cooler current
Ipe
1.3
A
Thermo-
electric co oler
(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
m
m 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
l
c
CW, Pf=10mW
(Note 1)
nm
Central wavelength drift with
case temp.
Dl
c/
D
Tc
Tc=-20~70
C
-1
-
0
pm/
C
Laser operating temperature
Tset
-
20
-
35
C
Spectral line width
D
f
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
C
35
-
-
Optical isolation
Iso
Tc=-20~70
C
23
-
-
dB
Dark current (PD)
Id
Vrd=5V, Tc=-20~70
C
-
-
0.1
m
A
Capacitance (PD)
Ct
Vrd=5V, f=1MHz
-
-
10
pF
Note 1) See Table 1.
Note 2) Er=max|10
log(Pf / Pf@25
C)|
MITSUBISHI (OPTICAL DEVICES)
FU-68PDF-V510MxxB
1.55
m
m DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
THERMAL CHARACTERISTICS (Tld=Tset, Tc=-20~70
C)
Parameter
Symbol
Test Conditions
Limits
Unit
Min.
Typ.
Max.
Thermistor resistance
Rth
Tld=25
9.5
10
10.5
k
W
B constant of Rth
B
-
-
3950
-
K
Cooling capacity
D
T
Pf=10mW, Tc=70
C
50
-
-
C
Cooler current
Ipe
Pf=10mW, Tc=70
C,
Tld=Tset
-
0.6
1
A
Cooler voltage
Vpe
Pf=10mW, Tc=70
C,
Tld=Tset
-
1.2
2
V
FIBER PIGTAIL SPECIFICATIONS
Parameter
Limits
Unit
Type
PM (Note 3)
-
Mode field diameter
11
1
m
m
Cladding diameter
125
3
m
m
Secondary coating outer diameter
0.9
0.1
mm
Polarization axis
slow axis
-
Connector
FC/PC
-
Optical return loss of connector
40 (min)
dB
Note 3) PMF - Sumitomo Panda fiber (PM-155)
DOCUMENTATION (Tld=Tset)
Fiber output power vs. Laser forward current at Tld=Tset and Tc=-20,25,70
C
Threshold current (Ith)
Laser forward current (Iop) at Pf=10mW
Laser forward voltage (Vop) at Pf=10mW
Laser operating temperature (Tset) at
l
c (Note 4)
Monitor current (Imon) at Pf=10mW
Thermistor resistance (Rth)
Cooler current (Ipe) at Pf=10mW and Tc=70
C
Cooler voltage (Vpe) at Pf=10mW and Tc=70
C
Note 4) Tset is attached as a reference data. Rth should be used in order to tune the wavelength to the specified
value accurately.
MITSUBISHI (OPTICAL DEVICES)
FU-68PDF-V510MxxB
1.55
m
m DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
Table 1.
Type number
l
c (nm)
Type number
l
c (nm)
Type number
l
c (nm)
FU-68PDF-510M9B
1529.55
FU-68PDF-510M38B
1540.95
FU-68PDF-510M67B
1552.52
FU-68PDF-510M10B
1529.94
FU-68PDF-510M39B
1541.35
FU-68PDF-510M68B
1552.93
FU-68PDF-510M11B
1530.33
FU-68PDF-510M40B
1541.75
FU-68PDF-510M69B
1553.33
FU-68PDF-510M12B
1530.72
FU-68PDF-510M41B
1542.14
FU-68PDF-510M70B
1553.73
FU-68PDF-510M13B
1531.12
FU-68PDF-510M42B
1542.54
FU-68PDF-510M71B
1554.13
FU-68PDF-510M14B
1531.51
FU-68PDF-510M43B
1542.94
FU-68PDF-510M72B
1554.54
FU-68PDF-510M15B
1531.90
FU-68PDF-510M44B
1543.33
FU-68PDF-510M73B
1554.94
FU-68PDF-510M16B
1532.29
FU-68PDF-510M45B
1543.73
FU-68PDF-510M74B
1555.34
FU-68PDF-510M17B
1532.68
FU-68PDF-510M46B
1544.13
FU-68PDF-510M75B
1555.75
FU-68PDF-510M18B
1533.07
FU-68PDF-510M47B
1544.53
FU-68PDF-510M76B
1556.15
FU-68PDF-510M19B
1533.47
FU-68PDF-510M48B
1544.92
FU-68PDF-510M77B
1556.55
FU-68PDF-510M20B
1533.86
FU-68PDF-510M49B
1545.32
FU-68PDF-510M78B
1556.96
FU-68PDF-510M21B
1534.25
FU-68PDF-510M50B
1545.72
FU-68PDF-510M79B
1557.36
FU-68PDF-510M22B
1534.64
FU-68PDF-510M51B
1546.12
FU-68PDF-510M80B
1557.77
FU-68PDF-510M23B
1535.04
FU-68PDF-510M52B
1546.52
FU-68PDF-510M81B
1558.17
FU-68PDF-510M24B
1535.43
FU-68PDF-510M53B
1546.92
FU-68PDF-510M82B
1558.58
FU-68PDF-510M25B
1535.82
FU-68PDF-510M54B
1547.32
FU-68PDF-510M83B
1558.98
FU-68PDF-510M26B
1536.22
FU-68PDF-510M55B
1547.72
FU-68PDF-510M84B
1559.39
FU-68PDF-510M27B
1536.61
FU-68PDF-510M56B
1548.11
FU-68PDF-510M85B
1559.79
FU-68PDF-510M28B
1537.00
FU-68PDF-510M57B
1548.51
FU-68PDF-510M86B
1560.20
FU-68PDF-510M29B
1537.40
FU-68PDF-510M58B
1548.91
FU-68PDF-510M87B
1560.61
FU-68PDF-510M30B
1537.79
FU-68PDF-510M59B
1549.32
FU-68PDF-510M88B
1561.01
FU-68PDF-510M31B
1538.19
FU-68PDF-510M60B
1549.72
FU-68PDF-510M89B
1561.42
FU-68PDF-510M32B
1538.58
FU-68PDF-510M61B
1550.12
FU-68PDF-510M90B
1561.83
FU-68PDF-510M33B
1538.98
FU-68PDF-510M62B
1550.52
FU-68PDF-510M91B
1562.23
FU-68PDF-510M34B
1539.37
FU-68PDF-510M63B
1550.92
FU-68PDF-510M92B
1562.64
FU-68PDF-510M35B
1539.77
FU-68PDF-510M64B
1551.32
FU-68PDF-510M93B
1563.05
FU-68PDF-510M36B
1540.16
FU-68PDF-510M65B
1551.72
FU-68PDF-510M94B
1563.45
FU-68PDF-510M37B
1540.56
FU-68PDF-510M66B
1552.12
FU-68PDF-510M95B
1563.86
All wavelengths are referred to vacuum.
Tolerance is
l
c
0.05nm.
MITSUBISHI (OPTICAL DEVICES)
FU-68PDF-V510MxxB
1.55
m
m DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
OUTLINE DIAGRAM
(Unit : mm)
FU-68PDF-V510MxxB
28.4
PDF 
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