MITSUBISHI FU-48SDF-1

MITSUBISHI (OPTICAL DEVICES)
FU-48SDF-1
1.3 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
DESCRIPTION
Mod ule type FU-48SDF-1 is a 1.3mm DFB-LD mod ule
with single-mode optical fiber.
Th is mod ule is suitable to a light source for use in
2.5Gb/s digital optical communication systems.
FEATURES
Multi quantum wells (MQW) DFB Laser Diode
module
Input impedance is 25W
Emission wavelength is in 1.3 mm 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)
ABSOLUTE MAXIMUM RATINGS
(Tld=25° C)
Parameter
Laser diode
Photodiode
Symbol
Conditions
Rating
Unit
Optical output power
from fiber end
Pf
CW
10
mW
Forword current
If
CW
150
mA
Reverse voltage
Vrl
-
2
V
Reverse voltage
Vrd
-
20
V
for monitoring
Forward current
Ifd
-
2
mA
Cooler
Cooler voltage
Vpe
-
2.4
V
(Note)
Cooler current
Ipe
-
1.2
A
Tc
-
-20~+65
°C
Tstg
-
-40~+70
°C
Operating case temperature
Storage temperature
No te. Even if the thermo-electric cooler (TEC) is operated within the rate d conditions, uncontrolled current loading
or operation without heatsink may easily damage the mod ule by exceeding the storage temperature range.
Th ermistor resistan ce should be properly mon itored by the feedback circuit during TE C operation to avoid
the catastrophic damage.
MITSUBISHI (OPTICAL DEVICES)
FU-48SDF-1
1.3 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
ELECTRICAL/OPTICAL CHARACTERISTICS
Parameter
Threshold current
(Tld=25∞ C,Tc=25∞ C, unless otherwise noted)
Symbol
Test Conditions
Limits
Unit
Min.
Typ.
Max.
15
40
mA
mA
Ith
CW
-
Operating current
Iop
CW
-
48
80
Operating Voltage
Vop
CW,If=Iop (Note 1)
-
1.3
1.8
V
Input impedance
Zin
If=Iop
-
25
-
W
Optical output power from fib er
end
Pf
CW,If=Iop
4
6
-
mW
CW,If=Iop
1290
1310
1330
nm
-
0.4
-
nm
Light-emission central
wavelength
Spectral width
(-20db full width)
c
Dl
2.5Gb/s NRZ
Mark ratio 50%
If_perk=Iop
Extinction ratio 8%
(Note 2)
Side mode suppression ratio
Sr
CW,If=Iop
33
40
-
dB
Cutoff frequency
(-1,5dB optical)
fc
If=Iop
3.5
-
-
GHz
Rise and fall time
(10~90%)
tr,tf
2.5Gb/s NRZ
Mark ratio 50%
If_peak=Iop
Extinction ratio 8%
-
-
150
ps
Relative intensity noise
Nr
CW,If=Iop
-
-155
-145
dB/Hz
Tracking error (Note 3)
Er
Tc=-20~+65∞ C,APC,ATC
-
0.3
-
dB
Differential efficiency
h
0.1
0.17
0.35
mW/
mA
Monitor current
Imon
(Note 2)
-
0.1
-
-
mA
Dark current (PD)
Id
Vrd=5V
CW,If=Iop,Vrd=5V
-
0.1
1
mA
Capacitance (PD)
Ct
Vrd=5V,f=1MHz
-
10
-
pF
Note 1. If: LD forward current
2. Optical return loss of the connectors should be greater than 40dB in order to get the specified
performance.
3. Er=MAX|10¥log(Pf(Tc)/Pf(25∞ C))|
THERMAL CHARACTERISTICS (Tld=25∞ C,Tc=-20~+65∞ C)
Parameter
Thermistor resistance
B constant of thermistor
resistance
Symbol
Rth
Test Conditions
Tld=25∞ C
B
-
Limits
Unit
Min.
Typ.
Max.
9.5
10
10.5
kW
-
3950
-
K
Cooling capacity
DT
Tc=65∞ C
40
-
-
∞C
Cooler current
Ipe
D T=40∞ C
-
0.6
1
A
Cooler Voltage
Vpe
D T=40∞ C
-
1.2
2
V
OPTICAL FIBER SPECIFICATION
Parameter
Limits
Unit
SM
-
Mode filed dia.
9.5 ±1
mm
Cladding dia.
125±2
mm
0.9 typ.
mm
Type
Jacket dia.
MITSUBISHI (OPTICAL DEVICES)
FU-48SDF-1
1.3 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL
(BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
OUTLINE DIAGRAM
(Unit : mm)
FU-48SDF-1