Mitsubishi Electric Corporation Semiconductor Group FU-68SDF-802M93B, FU-68SDF-802M91B, FU-68SDF-802M89B, FU-68SDF-802M87B, FU-68SDF-802M85B Datasheet
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FU-68SDF-V802MxxB
1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
DESCRIPTION
Module t ype FU-68SDF-V802MxxB is a 1.55mm DF B 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 D enseWDM 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
MITSUBISHI (OPTICAL DEVICES)
APPLICATION
High speed transmission systems (~2.5Gb/s)
Dense-WDM systems
ABSOLUTE MAXIMUM RATINGS (Tld=Tset)
Parameter Symbol Conditions Rating Unit
Laser diode
electric cooler
(Note)
Operating case temperature Tc -20 ~ 70
Storage temperature Tstg -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.
Optical output
power
Forward current If CW 150 mA
Reverse voltage Vrl
Reverse voltage Vrd 20 VPhotodiode
Forward current Ifd
Cooler current Ipe 1.3 AThermoCooler voltage Vpe
Pf CW 6 mW
2V
2mA
3.1 V
°C
°C
MITSUBISHI (OPTICAL DEVICES)
FU-68SDF-V802MxxB
1.55 mm DFB-LD MODULE WITH SINGLEMODE 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
Optical output power
at threshold current
Operating current Iop CW, Pf=2mW - 40 65 mA
Operating voltage Vop CW, Pf=2mW - 1.3 1.8 V
Input impedance Zin Pf=2mW - 25 -
Light-emission central
wavelength
Central wavelength drift with
case temp.
Laser operating temperature Tset - 20 - 35 °C
Spectral width
Side mode suppression ratio Sr (Note 1) 33 40 - dB
Dispersion penalty Pp (Note 1), at 10
Cutoff frequency
(-1.5dB optical)
Rise and fall time
(10~90%)
Relative intensity noise Nr CW, Pf=2mW,
Tracking error
(Note 3)
Differential efficiency
Linearity
Monitor current Imon CW, Pf=2mW, Vrd=5V 0.1 - 2 mA
Dark current (PD) Id
Capacitance (PD) Ct Vrd=5V, f=1MHz - - 10 pF
Note 1) 2.48832Gb/s NRZ, 223-1, Pf_ave=1mW, Extinction ratio 10dB, optical return loss of the connectors should
be greater than 40dB in order to ensure the specified performance.
Note 2) See Table 1.
Note 3) Er=max|10´log(Pf / Pf@25°C)|
Note 4) Variation of the differential efficiency from the straight line between 0.2mW and 2mW.
Pth CW, If=Ith - - 100
lc
Dlc/DTc Tc=-20~70°C
Dl
fc Pf=2mW 3.5 - - GHz
tr, tf (Note 1) - - 150 psec
Er
h
Dh
(Note 1) (Note 2) nm
-1 - 0
(Note 1), -20dB - 0.2 0.4 nm
-10
BER,
+1800ps/nm
0.5~3GHz
Tc=-20~70°C,
APC, ATC
CW, Pf=2mW 0.057 0.07 0.15 mW/
CW, Pf=0.2~2.4mW,
(Note 4)
Tc=25°C35--Optical isolation Iso
Tc=-20~70°C
Vrd=5V, Tc=-20~70°C
--2dB
- -155 -145 dB/Hz
- - 0.5 dB
-20 - 20 %
23 - -
- - 0.1
mW
W
pm/°C
mA
dB
mA
MITSUBISHI (OPTICAL DEVICES)
FU-68SDF-V802MxxB
1.55 mm DFB-LD MODULE WITH SINGLEMODE 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
B constant of Rth B - - 3950 - K
Cooling capacity
Cooler current Ipe
Cooler voltage Vpe
FIBER PIGTAIL SPECIFICATIONS
Parameter Limits Unit
Type SM Mode field diameter 9.5 1
Cladding diameter 125 2
Secondary coating outer diameter 0.9 0.1 mm
Connector FC/PC Optical return loss of connector 40 (min) dB
DT Pf=2mW, Tc=70°C
Pf=2mW, Tc=70°C, Tld=Tset
Pf=2mW, Tc=70°C, Tld=Tset
50 - -
- 0.6 1 A
- 1.2 2 V
mm
mm
kW
°C
DOCUMENTATION (Tld=Tset)
Fiber output power vs. Laser forward current at Tld=Tset and Tc=-20,25,70°C
BER curves at 2.48832Gb/s modulation
Threshold current (Ith)
Laser forward current (Iop) at Pf=2mW
Laser forward voltage (Vop) at Pf=2mW
Laser operating temperature (Tset) at lc (Note 5)
Monitor current (Imon) at Pf=2mW
Thermistor resistance (Rth)
Cooler current (Ipe) at Pf=2mW and Tc=70°C
Cooler voltage (Vpe) at Pf=2mW and Tc=70°C
Note 5) 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-68SDF-V802MxxB
1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
Table 1.
Type number
FU-68SDF-802M9B 1529.55 FU-68SDF-802M53B 1546.92
FU-68SDF-802M11B 1530.33 FU-68SDF-802M55B 1547.72
FU-68SDF-802M13B 1531.12 FU-68SDF-802M57B 1548.51
FU-68SDF-802M15B 1531.90 FU-68SDF-802M59B 1549.32
FU-68SDF-802M17B 1532.68 FU-68SDF-802M61B 1550.12
FU-68SDF-802M19B 1533.47 FU-68SDF-802M63B 1550.92
FU-68SDF-802M21B 1534.25 FU-68SDF-802M65B 1551.72
FU-68SDF-802M23B 1535.04 FU-68SDF-802M67B 1552.52
FU-68SDF-802M25B 1535.82 FU-68SDF-802M69B 1553.33
FU-68SDF-802M27B 1536.61 FU-68SDF-802M71B 1554.13
FU-68SDF-802M29B 1537.40 FU-68SDF-802M73B 1554.94
FU-68SDF-802M31B 1538.19 FU-68SDF-802M75B 1555.75
FU-68SDF-802M33B 1538.98 FU-68SDF-802M77B 1556.55
FU-68SDF-802M35B 1539.77 FU-68SDF-802M79B 1557.36
FU-68SDF-802M37B 1540.56 FU-68SDF-802M81B 1558.17
FU-68SDF-802M39B 1541.35 FU-68SDF-802M83B 1558.98
FU-68SDF-802M41B 1542.14 FU-68SDF-802M85B 1559.79
FU-68SDF-802M43B 1542.94 FU-68SDF-802M87B 1560.61
FU-68SDF-802M45B 1543.73 FU-68SDF-802M89B 1561.42
FU-68SDF-802M47B 1544.53 FU-68SDF-802M91B 1562.23
FU-68SDF-802M49B 1545.32 FU-68SDF-802M93B 1563.05
FU-68SDF-802M51B 1546.12 FU-68SDF-802M95B 1563.86
All wavelengths are referred to vacuum.
Tolerance is lc
0.05nm.
lc (nm)
Type number
lc (nm)
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
OUTLINE DIAGRAM
MITSUBISHI (OPTICAL DEVICES)
FU-68SDF-V802MxxB
1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(Unit : mm)
28.4
FU-68SDF-V802MxxB
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