Mitsubishi Electric Corporation Semiconductor Group FU-68PDF-V510M169B, FU-68PDF-V510M168B, FU-68PDF-V510M167B, FU-68PDF-V510M166B, FU-68PDF-V510M165B Datasheet

MITSUBISHI (OPTICAL DEVICES)

FU-68PDF-V510MxxxB

1.58 µm (L-Band) DFB-LD MODULE WITH POLARIZATION MAINTAINING FIBER PIGTAIL
(WAVELENGTH SELECTED, BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION)

DESCRIPTION

Module type FU-68PDF-V510MxxB 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

l Input impedance is 25Ω
l Multi quantum wells (MQW) DFB Laser Diode

module

l Emission wavelength is in 1.58µm band
l Polarization maintaining optical fiber pig-tail
l Built-in optical isolator
l Built-in thermal electric cooler
l Butterfly package
l With photodiode for optical output monitor

APPLICATION

High speed transmission systems (~10Gb/s)
Dense-WDM systems

OPTION

l Wavelength option:

1565nm~1625nm are available

ABSOLUTE MAXIMUM RATINGS (Tld=Tset)

Parameter Symbol Conditions Rating Unit

Laser diode

electric cooler
(Note)
Operating case temperature Tc - -20 ~ 70

Storage temperature Tstg - -40 ~ 85

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
Forward current If CW 150 mA
Reverse voltage Vrl - 2 V
Reverse voltage Vrd - 20 VPhotodiode
Forward current Ifd - 2 mA
Cooler current Ipe - 1.3 AThermo­Cooler voltage Vpe - 3.1 V

Pf CW 15 mW

°C
°C

MITSUBISHI (OPTICAL DEVICES)

FU-68PDF-V510MxxxB

1.58 µm (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 Limits Unit

Min. Typ. Max.

Threshold current Ith CW - 10 25 mA
Operating current Iop CW, Pf=10mW - - 100 mA
Operating voltage Vop CW, Pf=10mW - - 1.8 V
Input impedance Zin Pf=10mW - 25 ­Light-emission central
wavelength
Central wavelength drift with
case temp.
Laser operating temperature Tset - 20 - 35 °C
Spectral line width
Side mode suppression ratio Sr CW, Pf=10mW 33 40 - dB
Cutoff frequency
(-1.5dB optical)
Polarization extinction ratio Ex CW, Pf=10mW 20 25 - dB
Relative intensity noise Nr CW, Pf=10mW,

Tracking error
(Note 2)

Differential efficiency
Monitor current Imon CW, Pf=10mW, Vrd=5V 0.2 - 2 mA

Dark current (PD) Id

Capacitance (PD) Ct Vrd=5V, f=1MHz - - 10 pF
Note 1) See Table 1.
Note 2) Er=max|10×log(Pf / Pf@25°C)|

λc

∆λc/∆Tc Tc=-20~70°C

∆f

fc Pf=10mW 2 - - GHz

Er

η

CW, Pf=10mW (Note 1) nm

-1 - 0

CW, Pf=10mW - - 20 MHz

- -155 -145 dB/Hz

0.5~3GHz
Tc=-20~70°C,

APC, ATC
CW, Pf=10mW 0.1 - - mW/

Tc=25°C 35 - -Optical isolation Iso
Tc=-20~70°C
Vrd=5V, Tc=-20~70°C

- - 0.5 dB

23 - -

- - 0.1

pm/°C

Ω

mA

dB

µA