MAY06

(2/5)

Mitsubishi Electric Corporation reserves the right to make changes to the products or information contained herein

without notice. No liability is assumed as a result of their use or application.

MITSUBISHI CONFIDENTIAL

MITSUBISHI (OPTICAL DEVICES)

FU-650SDF-Fx49Mxx

1.55

μm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL

ELECTRICAL/OPTICAL CHARACTERISTICS

(Tc=25

°C, unless otherwise noted)

Limits

Parameter

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

Threshold current

Ith

CW

-

10

20

mA

Optical output power

at threshold current

Pth

CW, Ibias=Ith

-

-

100

μW

Operating current

Iop

CW, Pf=4mW

-

40

65

mA

Operating voltage

Vop

CW, Pf=4mW

-

1.2

1.5

V

Modulation Current (Iop-Ith)

Imod

CW, Pf=4mW

20

30

45

mA

Tc=25

°C

0.1

0.13

-

Deferential Efficiency

η

CW, Pf=4mW

Tc=75

°C

0.06

0.09

-

mA

Differential impedance

Rs

-

3

6

10

Ω

Optical output power from

fiber end

Pf

CW, nominal

4

mW

-Fx49Mx1

1467

1470

1473

nm

-Fx49Mx2

1487

1490

1493

nm

-Fx49Mx3

1507

1510

1513

nm

-Fx49Mx4

1527

1530

1533

nm

-Fx49Mx5

1547

1550

1553

nm

-Fx49Mx6

1567

1570

1573

nm

-Fx49Mx7

1587

1590

1593

nm

Light-emission central

wavelength

λc

CW, APC

(Note 1)

-Fx49Mx8

1607

1610

1613

nm

Wavelength temperature

coefficient

λct

CW, APC

-

0.1

0.11

nm/°C

Side mode suppression ratio

Sr

CW, APC

30

45

-

dB

Tracking error (Note 2)

Er

CW, APC

-

0.5

1.25

dB

2nd order distortion

D2

-

-

-50

3rd order distortion

D3

2 tone test (Note 3)

f1=13MHz, f2=19MHz

m=10%/tone, Pf=4mW

-

-

-60

dBc

Relative intensity noise

(Note 4)

Nr

CW, APC, f=200MHz

-

-155

-145

dB/Hz

Spurious Noise (Carrier On)

NspON

-

-50

-45

dBc

Spurious Noise (Carrier Off)

NspOFF

2-tone, m=10%/tone

Imon=Imonop (Note 5)

-

-35

-25

dBc

Monitor current

Imon

CW, Pf=4mW, Vrd=5V

0.05

-

-

mA

Dark current (PD)

Id

Vrd=5V

-

-

0.1

μA

Capacitance (PD)

Ct

Vrd=5V, f=1MHz

-

-

10

pF

Note 1) “APC” represents operating LD by a constant monitor current for Pf=4mW at Tc=25°C.

Note 2) Er=max|10

×log(Pf / Pf@25°C)|

Note 3) Optical return loss of the connectors should be greater than 40dB in order to get the specified performance.

Note 4) Relative intensity noise dose not includes shot noise of receiver.

Note 5) Spurious noise is defined under the following test condition.

2-tone carrier frequency

: f1=13MHz, f2=19MHz

Fiber length

: 15km

Measurement frequency

: 5~200MHz

Spectrum analyzer setting

: Resolution bandwidth 100kHz, video bandwidth 30kHz and 30 second

max hold.

FIBER PIGTAIL SPECIFICATIONS

Parameter

Limits

Unit

Type

SM

-

Mode field diameter

9.5+/-1

μm

Cladding diameter

125+/-2

μm

Secondary coating outer diameter

0.9+/-0.1

mm

Lfiber(Note 6)

1000+/-100

mm

Connector

See ordering information

-

Optical return loss of connector

See ordering information

dB

Note 6) ‘Lfiber’ is the fiber length that is defined in OUTLINE DIAGRAM.