Mitsubishi Electric Corporation Semiconductor Group FU-641SEA-1M1, FU-641SEA-1M3, FU-641SEA-1M2 Datasheet
1.55 µm EA MODULATOR INTEGRATED DFB-LD MODULE
(7 PIN PACKAGE WITH K CONNECTOR, 10GB/s DIGITAL APPLICATION)
DESCRIPTION
Module type FU-641SEA-1Mx is a 1.55µm EA
modulator integrated DFB-LD module with singlemode optical fiber.
This module is suitable to a light source for use in
10Gb/s digital optical communication systems.
FEATURES
l EA(Electro-absorbtion) modulator integrated
DFB-LD
l Input impedance is 50Ω.
l Emission wavelength is in 1.55µm band
l 7 Pin package with K connector(**)
l Built-in optical isolator
l Built-in thermal electric cooler
l With photodiode for optical output monitor
**:GPO connector is availiable.
MITSUBISHI (OPTICAL DEVICES)
FU-641SEA-1Mx
APPLICATION
STM-64, OC192 application
ABSOLUTE MAXIMUM RATINGS
Item Symbol Condition Rating Unit
Laser diode
cooler(Note1)
Operating case temperature Tc Storage temperature Tstg -
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 Pf CW 10 mW
Forward current If CW 200 mA
Reverse voltage Vrl CW 2 V
Reverse voltage Vrm - 5 VModulator
Forward voltage Vfm - 1 V
Reverse voltage Vrd - 20 VPhotodiode
Forward current Ifd - 2 mA
Current Ipe - 1.5 AThermo-electric
Voltage Vpe - 3 V
-20∼70 °C
-40∼85 °C
MITSUBISHI (OPTICAL DEVICES)
FU-641SEA-1Mx
1.55 µm EA MODULATOR INTEGRATED DFB-LD MODULE
(7 PIN PACKAGE WITH K CONNECTOR, 10GB/s DIGITAL APPLICATION)
ELECTRICAL/OPTICAL CHARACTERISTICS (Tld=25°C, Tc=25°C unless otherwise noted)
LimitParameter Symbol Test Conditions(Note2)
Min. Typ. Max.
Threshold current Ith CW,Vm=0V 5 - 30 mA
Operating current Iop CW,Vm=0V 50 70 100 mA
Operating voltage Vop CW, If=Iop, Vm=0V - - 1.7 V
Input impedance Zin If=Iop - 50 Light-emission central
wavelength
Optical output power
from fiber end
Side mode
suppression ratio
Power penalty Pp (Note3,4) See Table 1 dB
Extinction ratio Ex (Note 3,4) 11 - - dB
Rise/fall time tr/tf (Note 3,4) - - 45 ps
Cutoff frequency
(-1.5dB optical)
Relative intensity
noise
Tracking error Er
Monitor current Imon If=Iop,Vrd=-5V 0.1 1.5 mA
Optical isolation Iso
Dark current(PD) Id Vrd=-5V - - 0.1
Note 2 : Vm is EAM bias voltage at CW condition, Vpp and Voff are EAM amplitude and EAM high level
offset voltage respectively at modulation condition.
Note 3 : 9.95328Gbps, NRZ, PRBS2^23-1, If=Iop,Vpp=2.5V,Voff=0V to –1V
Note 4 : Optical return loss of the connectors should be greater than 40dB in order to get specified
performance.
Note 5 : Er=10×log[Pf(Tc)/Pf(25°C)]
λc
Pf (Note 3,4) -2 - - dBm
Sr (Note 3,4) 35 40 - dB
fc If=Iop,Vm=-1V 11 - - GHz
RIN CW, If=Iop, Vm=0V,10GHz - - -135 dB/Hz
(Note 3,4) 1530 1550 1570 nm
If=Iop,Vm=-1V, f≤5GHz
If=Iop,Vm=-1V, f≤10GHz
If=Iop,Tc=-20∼70°C, Note 5
Tc=-20∼70°C
Vrd=-5V - 10 - pFCapacitance(PD) Ct
Tc=25°C
10 15 - dBRF return loss S11
5 7 - dB
- 0.3 0.5 dB
23 - - dB
35 - - dB
Unit
Ω
µA
Table 1
LimitType number Dispersion
Min. Typ. Max.
FU-641SEA-1M1 130ps/nm - - 1 dB S64.3 application
FU-641SEA-1M2 800ps/nm - - 2 dB S64.2 application
FU-641SEA-1M3 36ps/nm - - 1 dB Short reach application
Unit Comment
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