MITSUBISHI (OPTICAL DEVICES)
FU-68PDF-V520MxxxB
1.58μm (L-Band) DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
DESCRIPTION
Module type FU-68PDF-V520MxxB is a 1.58μm (L-Band) DFB-LD module with polarization maintaining optical fiber.
This module is suitable to a CW light source for external modulator for use in 2.5Gb/s and 10Gb/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 (100GHz spacing)
•Input impedance is 25Ω
•Emission wavelength is in 1.58μm band
•Polarization maintaining optical fiber pig-tail
•Built-in optical isolator
•Built-in thermal electric cooler
•Butterfly package
•With photodiode for optical output monitor
APPLICATION
High speed transmission systems (~10Gb/s)
Dense-WDM systems
OPTION
• Wavelength option:
1565nm~1625nm are available |
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ABSOLUTE MAXIMUM RATINGS |
(Tld=Tset) |
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Parameter |
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Symbol |
Conditions |
Rating |
Unit |
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Laser diode |
Optical output |
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Pf |
CW |
24 |
mW |
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power |
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Forward current |
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If |
CW |
150 |
mA |
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Reverse voltage |
|
Vrl |
- |
2 |
V |
Photodiode |
Reverse voltage |
|
Vrd |
- |
20 |
V |
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Forward current |
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Ifd |
- |
2 |
mA |
Thermo- |
Cooler current |
|
Ipe |
- |
1.3 |
A |
electric cooler |
Cooler voltage |
|
Vpe |
- |
3.1 |
V |
(Note) |
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Operating case temperature |
|
Tc |
- |
-20 ~ 70 |
°C |
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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)
FU-68PDF-V520MxxxB
1.58μm (L-Band) DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)
ELECTRICAL/OPTICAL CHARACTERISTICS (Tld=Tset, Tc=25°C unless otherwise noted)
Parameter |
Symbol |
Test Conditions |
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Limits |
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Unit |
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Min. |
Typ. |
Max. |
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Threshold current |
Ith |
CW |
- |
10 |
25 |
mA |
Operating current |
Iop |
CW, Pf=20mW |
- |
- |
130 |
mA |
Operating voltage |
Vop |
CW, Pf=20mW |
- |
- |
2 |
V |
Input impedance |
Zin |
Pf=20mW |
- |
25 |
- |
W |
Light-emission central |
λc |
CW, Pf=20mW |
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(Note 1) |
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nm |
wavelength |
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Central wavelength drift with |
Δλc/ Tc |
Tc=-20~70°C |
-1 |
- |
0 |
pm/°C |
case temp. |
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Laser operating temperature |
Tset |
- |
15 |
- |
35 |
°C |
Spectral line width |
f |
CW, Pf=20mW |
- |
- |
20 |
MHz |
Side mode suppression ratio |
Sr |
CW, Pf=20mW |
33 |
40 |
- |
dB |
Cutoff frequency |
fc |
Pf=20mW |
2 |
- |
- |
GHz |
(-1.5dB optical) |
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Polarization extinction ratio |
Ex |
CW, Pf=20mW |
20 |
25 |
- |
dB |
Relative intensity noise |
Nr |
CW, Pf=20mW, |
- |
-155 |
-145 |
dB/Hz |
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0.5~3GHz |
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Tracking error |
Er |
Tc=-20~70°C, |
- |
- |
0.5 |
dB |
(Note 2) |
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APC, ATC |
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Differential efficiency |
η |
CW, Pf=20mW |
0.15 |
- |
- |
mW/ |
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mA |
Monitor current |
Imon |
CW, Pf=20mW, Vrd=5V |
0.2 |
- |
4 |
mA |
Optical isolation |
Iso |
Tc=25°C |
35 |
- |
- |
dB |
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Tc=-20~70°C |
23 |
- |
- |
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Dark current (PD) |
Id |
Vrd=5V, Tc=-20~70°C |
- |
- |
0.1 |
μA |
Capacitance (PD) |
Ct |
Vrd=5V, f=1MHz |
- |
- |
10 |
pF |
Note 1) See Table 1.
Note 2) Er=max|10×log(Pf / Pf@25°C)|