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)
DESCRIPTION
Module type FU-641SEA-1Mx is a 1.55µm EA
modulator integrated DFB-LD module with single-
mode 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 1.5 5µm 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.
APPLICATION
STM-64, OC192 application
ABSOLUTE MAXIMUM RATINGS
Item
Laser diode
Optical output power
Forward current
Reverse voltage
Modulator
Reverse voltage
Forward voltage
Photodiode
Reverse voltage
Forward current
Thermo-electric
Current
cooler(Note1)
Voltage
Operating case temperature
Storage temperature
Symbol
Pf
If
Vrl
Vrm
Vfm
Vrd
Ifd
Ipe
Vpe
Tc
Tstg
Condition
CW
CW
CW
-
-
-
-
-
-
-
-
Rating
10
200
2
5
1
20
2
1.5
3
-20∼70
-40∼85
Unit
mW
mA
V
V
V
V
mA
A
V
°C
°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-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)
Parameter
Threshold current
Operating current
Operating voltage
Input impedance
Light-emission central
wavelength
Optical output power
from fiber end
Side mode
suppression ratio
Power penalty
Extinction ratio
Rise/fall time
Cutoff frequency
(-1.5dB optical)
RF return loss
Relative intensity
noise
Tracking error
Monitor current
Optical isolation
Dark current(PD)
Capacitance(PD)
Note 2
Note 3
Note 4
Note 5
Symbol
Ith
Iop
Vop
Zin
λc
Pf
Sr
Pp
Ex
tr/tf
fc
S11
RIN
Er
Imon
Iso
Id
Ct
Test Conditions (Note2)
CW,Vm=0V
CW,Vm=0V
CW, If=Iop, Vm=0V
If=Iop
(Note 3,4)
(Note 3,4)
(Note 3,4)
(Note3,4)
(Note 3,4)
(Note 3,4)
If=Iop,Vm=-1V
If=Iop,Vm=-1V, f≤5GHz
If=Iop,Vm=-1V, f≤10GHz
CW, If=Iop, Vm=0V,10GHz
Min.
5
50
-
-
1530
-2
35
Limit
Typ.
-
70
-
50
1550
-
40
Unit
Max.
30
100
1.7
-
1570
-
-
mA
mA
V
Ω
nm
dBm
dB
dB
dB
ps
GHz
dB
dB
dB/Hz
See Table 1
10
-
-
-
-
45
11
-
-
10
5
-
15
7
-
-
-
-135
If=Iop,Tc=-20∼70°C, Note 5
-
0.3
0.5
dB
If=Iop,Vrd=-5V
0.1
1.5
mA
Tc=-20∼70°C
23
-
-
dB
Vrd=-5V
-
-
0.1
µA
Vrd=-5V
-
10
-
pF
Tc=25°C
35
-
-
dB
:Vm is EAM bias voltage at CW condition, Vpp and Voff are EAM amplitude and EAM high level
offset voltage respectively at modulation condition.
: 9.95328Gbps, NRZ, PRBS2^23-1, If=Iop,Vpp=2.5V,Voff=0V to –1V
:Optical return loss of the connectors should be greater than 40dB in order to get specified
performance.
: Er=10×log[Pf(Tc)/Pf(25°C)]
Table 1
Type number
FU-641SEA-1M1
FU-641SEA-1M2
FU-641SEA-1M3
FU-641SEA-1M4
Dispersion
130ps/nm
800ps/nm
36ps/nm
400ps/nm
Min.
-
-
-
-
Limit
Typ.
-
-
-
-
Unit
Max.
1
2
1
1.5
dB
dB
dB
dB
Comment
IR-3 application
IR-2 application
SR-1 application
SR-2 application
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)
THERMAL CHARACTERISTICS
(Tld=25°C, Tc=-20~70°C)
Parameter
Symbol
Test Conditions
Thermistor resistance
B constant of Rth
Cooling capacity
Cooler current
Cooler voltage
Rth
B
∆T
Ipe
Vpe
Tld=25°C
-
If=Iop, Tc=70°C
If=Iop, Tc=70°C, Tld=25°C
If=Iop, Tc=70°C, Tld=25°C
Min.
9.5
-
45
-
-
Limits
Typ.
10
3950
-
0.6
1.2
Unit
Max.
10.5
-
-
1.2
2.5
kΩ
K
°C
A
V
FIBER PIGTAIL SPECIFICATIONS
Parameter
Type
Mode field diameter
Cladding diameter
Secondary coating outer diameter
Limits
SM
9.5+/-1
125+/-2
0.9+/-0.1
Unit
-
µm
µm
mm
DOCUMENTATION
•
Fiber output power vs. Laser forward current at Tld=25°C and Tc=-20,25,70°C
•
BER curves at 9.95328Gb//s modulation
•
Threshold current (Ith)
•
Laser forward current (Iop)
•
Laser forward voltage (Vop) at If=Iop, Tld=25°C
•
Monitor current (Imon) at If=Iop, Tld=25°C
•
Extinction ratio at If=Iop, Tld=25°C
•
Offset voltage
•
Thermistor resistance (Rth) at If=Iop, Tld=25°C
•
Cooler current (Ipe) at If=Iop, Tld=25°C
•
Cooler voltage (Vpe) at If=Iop, Tld=25°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)
OUTLINE DIAGRAM
(Unit : mm)
FU-641SEA-1Mx
Pin
1
2
3
4
5
6
7
FUNCTION
THERMISTOR
THERMISTOR
LD DC BIAS(ANODE)
PD ANODE
PD CATHODE
COOLER ANODE
COOLER CATHODE
Pin7
Thermo cooler
PD
Pin1
Thermistor
EA/LD
K
connector
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