Mitsubishi Electric Corporation Semiconductor Group FU-68SDF-810M9B, FU-68SDF-810M95B, FU-68SDF-810M93B, FU-68SDF-810M91B, FU-68SDF-810M89B Datasheet
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MITSUBISHI (OPTICAL DEVICES)
FU-68SDF-V810MxxB
1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
DESCRIPTION
Module t ype FU-68SDF-V810MxxB 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
APPLICATION
High speed transmission systems (~2.5Gb/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) E ven if the thermo-electric cooler (TEC) is operated within the rated conditions, uncontrolled current loading
or o peration without heatsink may easily damage the module by exceeding the storage temperature range.
Thermistor resistance sho uld be properly monitored by t he f eedback c ircuit during TEC operat ion t o av oid
the catastrophic damage.
MITSUBISHI (OPTICAL DEVICES)
FU-68SDF-V810MxxB
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
Pth CW, If=Ith - - 150
mW
Operating current Iop CW, Pf=10mW - 50 95 mA
Operating voltage Vop CW, Pf=10mW - 1.3 1.8 V
Input impedance Zin Pf=10mW - 25 -
W
Light-emission central
wavelength
lc
(Note 1) (Note 2) 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 width
Dl
(Note 1), -20dB - 0.2 0.4 nm
Side mode suppression ratio Sr (Note 1) 33 40 - dB
Dispersion penalty Pp (Note 1), at 10
-10
BER,
+1800ps/nm
--2dB
Cutoff frequency
(-1.5dB optical)
fc Pf=10mW 3.5 - - GHz
Rise and fall time
(10~90%)
tr, tf (Note 1) - - 150 psec
Relative intensity noise Nr CW, Pf=10mW,
0.5~3GHz
- -155 -145 dB/Hz
Tracking error
(Note 3)
Er
Tc=-20~70°C,
APC, ATC
- - 0.5 dB
Differential efficiency
h
CW, Pf=10mW 0.15 0.25 0.35 mW/
mA
Linearity
Dh
CW, Pf=1~12mW,
(Note 4)
-20 - 20 %
Monitor current Imon CW, Pf=10mW, Vrd=5V 0.2 - 3 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) 2.48832Gb/s NRZ, 223-1, Pf_ave=5mW, 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 1mW and 10mW.
MITSUBISHI (OPTICAL DEVICES)
FU-68SDF-V810MxxB
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
kW
B constant of Rth B - - 3950 - K
Cooling capacity
DT 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 SM Mode field diameter 9.5 1
mm
Cladding diameter 125 2
mm
Secondary coating outer diameter 0.9 0.1 mm
Connector FC/PC Optical return loss of connector 40 (min) dB
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=10mW
Laser forward voltage (Vop) at Pf=10mW
Laser operating temperature (Tset) at lc (Note 5)
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 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-V810MxxB
1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
Table 1.
Type number
lc (nm)
Type number
lc (nm)
FU-68SDF-810M9B 1529.55 FU-68SDF-810M53B 1546.92
FU-68SDF-810M11B 1530.33 FU-68SDF-810M55B 1547.72
FU-68SDF-810M13B 1531.12 FU-68SDF-810M57B 1548.51
FU-68SDF-810M15B 1531.90 FU-68SDF-810M59B 1549.32
FU-68SDF-810M17B 1532.68 FU-68SDF-810M61B 1550.12
FU-68SDF-810M19B 1533.47 FU-68SDF-810M63B 1550.92
FU-68SDF-810M21B 1534.25 FU-68SDF-810M65B 1551.72
FU-68SDF-810M23B 1535.04 FU-68SDF-810M67B 1552.52
FU-68SDF-810M25B 1535.82 FU-68SDF-810M69B 1553.33
FU-68SDF-810M27B 1536.61 FU-68SDF-810M71B 1554.13
FU-68SDF-810M29B 1537.40 FU-68SDF-810M73B 1554.94
FU-68SDF-810M31B 1538.19 FU-68SDF-810M75B 1555.75
FU-68SDF-810M33B 1538.98 FU-68SDF-810M77B 1556.55
FU-68SDF-810M35B 1539.77 FU-68SDF-810M79B 1557.36
FU-68SDF-810M37B 1540.56 FU-68SDF-810M81B 1558.17
FU-68SDF-810M39B 1541.35 FU-68SDF-810M83B 1558.98
FU-68SDF-810M41B 1542.14 FU-68SDF-810M85B 1559.79
FU-68SDF-810M43B 1542.94 FU-68SDF-810M87B 1560.61
FU-68SDF-810M45B 1543.73 FU-68SDF-810M89B 1561.42
FU-68SDF-810M47B 1544.53 FU-68SDF-810M91B 1562.23
FU-68SDF-810M49B 1545.32 FU-68SDF-810M93B 1563.05
FU-68SDF-810M51B 1546.12 FU-68SDF-810M95B 1563.86
All wavelengths are referred to vacuum.
Tolerance is lc
0.05nm.
MITSUBISHI (OPTICAL DEVICES)
FU-68SDF-V810MxxB
1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
OUTLINE DIAGRAM
(Unit : mm)
FU-68SDF-V810MxxB
28.4
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