MITSUBISHI (OPTICAL DEVICES)
TENTATIVE FU-68SDF-V802MxxxB
1.58 μm (L-Band) DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL (WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
DESCRIPTION
Module type FU-68SDF-V802MxxB is a 1.58μm (L-Band) DFB-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 to expand the wavelength channels into L-Band for Dense-WDM transmission.
FEATURES
• Multi quantum wells (MQW) DFB Laser Diode module
•Input impedance is 25Ω
•Emission wavelength is in 1.58μm 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
OPTION
•Wavelength option: 1565nm~1625nm are available
ABSOLUTE MAXIMUM RATINGS (Tld=Tset)
Parameter |
Symbol |
Conditions |
Rating |
Unit |
|
Laser diode |
Optical output |
Pf |
CW |
6 |
mW |
|
power |
|
|
|
|
|
Forward current |
If |
CW |
150 |
mA |
|
Reverse voltage |
Vrl |
- |
2 |
V |
Photodiode |
Reverse voltage |
Vrd |
- |
20 |
V |
|
Forward current |
Ifd |
- |
2 |
mA |
Thermo- |
Cooler current |
Ipe |
- |
1.3 |
A |
electric cooler |
Cooler voltage |
Vpe |
- |
3.1 |
V |
(Note) |
|
|
|
|
|
Operating case temperature |
Tc |
- |
-20 ~ 70 |
°C |
|
Storage temperature |
Tstg |
- |
-40 ~ 85 |
°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)
TENTATIVE FU-68SDF-V802MxxxB
1.58 μm (L-Band) 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 |
Pth |
CW, If=Ith |
- |
- |
100 |
μW |
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 |
- |
Ω |
Light-emission central |
λc |
(Note 1) |
|
(Note 2) |
|
nm |
wavelength |
|
|
|
|
|
|
Central wavelength drift with |
Δλc/ Tc |
Tc=-20~70°C |
-1 |
- |
0 |
pm/°C |
case temp. |
|
|
|
|
|
|
Laser operating temperature |
Tset |
- |
20 |
- |
35 |
°C |
Spectral width |
Δλ |
(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, |
- |
- |
2 |
dB |
|
|
+1800ps/nm |
|
|
|
|
Cutoff frequency |
fc |
Pf=2mW |
3.5 |
- |
- |
GHz |
(-1.5dB optical) |
|
|
|
|
|
|
Rise and fall time |
tr, tf |
(Note 1) |
- |
- |
150 |
psec |
(10~90%) |
|
|
|
|
|
|
Relative intensity noise |
Nr |
CW, Pf=2mW, |
- |
-155 |
-145 |
dB/Hz |
|
|
0.5~3GHz |
|
|
|
|
Tracking error |
Er |
Tc=-20~70°C, |
- |
- |
0.5 |
dB |
(Note 3) |
|
APC, ATC |
|
|
|
|
Differential efficiency |
η |
CW, Pf=2mW |
0.057 |
0.07 |
0.15 |
mW/ |
|
|
|
|
|
|
mA |
Linearity |
Δη |
CW, Pf=0.2~2.4mW, |
-20 |
- |
20 |
% |
|
|
(Note 4) |
|
|
|
|
Monitor current |
Imon |
CW, Pf=2mW, Vrd=5V |
0.1 |
- |
2 |
mA |
Optical isolation |
Iso |
Tc=25°C |
35 |
- |
- |
dB |
|
|
Tc=-20~70°C |
23 |
- |
- |
|
Dark current (PD) |
Id |
Vrd=5V, Tc=-20~70°C |
- |
- |
0.1 |
μA |
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.