Edition 1.3
July 2004

FLD5F20NP-D

FEATURES

· Modulator Integrated DFB Laser Diode Module
· CW operation of DFB laser section
· Available at C Band ITU-T grid wavelengths between

1529.55 - 1563.05nm

· Modulation voltage applied only to modulator section
· High speed butterfly package with GPO connection
· Built-in optical isolator, monitor photodiode, thermistor, and

thermo-electric cooler

APPLICATION

This MI laser is intended for intermediate reach applications (

40km)

at 10Gb/s.

DESCRIPTION

The Modulator Integrated DFB Laser (MI DFB Laser) has an electro-absorption modulator

monolithically integrated with a conventional Distributed Feed-Back (DFB) laser. The modulation
voltage is applied to the modulator section while the laser section operates CW allowing extremely low
wavelength chirping. Extinction ratios of more than 10 dB can be achieved with 2.6 Vp-p modulation.
The MI laser is installed in a butterfly type package. The module incorporates a highly stable optical
coupling system. The module includes an optical isolator, monitor photodiode, thermistor and a
thermo-electric cooler.

Parameter

Symbol

Storage Temperature

Tstg

+85

-40

Operating Case Temperature

+70

Top

-20

Optical Output Power

Laser Forward Current

150

Laser Reverse Voltage

Modulator Forward Voltage

-5

Photodiode Forward Current

Photodiode Reverse Voltage

VDR

260

°C

sec

Lead Soldering Time

TEC Voltage

+2.5

Cooling

Heating

-2.5

TEC Current

+1.4

Cooling

Heating

-0.9

Thermistor Temperature

+70

-20

ATC Operation

°C

Tth

Rating

Unit

Min.

Max.

ABSOLUTE MAXIMUM RATINGS (Top=25°C, unless otherwise specified)

Condition

1,550nm Modulator
Integrated DFB Laser

Parameter

Symbol

OPTICAL & ELECTRICAL CHARACTERISTICS (TL= Tset, Tc = 25°C, BOL, unless otherwise specified)

Unit

Limits

Max.

Type

Min.

Test Condition

Laser Set Temperature (BOL)

Tset

°C

Note (2)

Peak Wavelength

Note (4)

RF Return Loss

S11

f=DC-5GHz, 50

Test Set,

Vm=Vo, IF=Iop

RF Return Loss

S11

f=5-10GHz, 50

Test Set,

Vm=Vo, IF=Iop

Cut-off Frequency

S21

GHz

-3dB bandwidth,

Vm=Vo-0.5|Vmod|, IF=Iop

Optical Output Power
(Avg. Power)

dBm

-2.0

Wavelength Drift (after 20 years)

0.1

-0.1

Wavelength Stability
with Case Temperature

pm/

°C

±0.5

Dispersion Penalty

Note (1)

Sidemode Suppression Ratio

SSR

Note (2)

Forward Voltage

2.0

1.4

CW, IF=Iop, Vm=Vo

Optical Isolation

Tc=-20 to +70

°C

TEC Power Dissipation

3.3

IF=Iop

Thermal Resistance

Rth

10.5

9.5

10.0

TL=25°C , Tc=+25°C

Thermistor B Constant (Note 3)

3,630

3,270

3,450

In-Band Ripple

±1.0

IF=Iop, f=0.1-10GHz,

Vm=Vo-0.5|Vmod|

Threshold Current

Ith

CW, Vm=Vo

On Level Modulation

-0.7

Modulator Drive Voltage

Vmod

2.6

(Vo-Vmod)

-3.3V, Rext=10dB

Relative Intensity Noise

RIN

dB/Hz

-120

f=10 MHz to 8.5 GHz,

Vm=Vo, IF=Iop, 8% Reflection

Operating Current

Iop

100

Monitor Current

0.04

1.5

Note (2), VDR=5V

Extinction Ratio

Rext

f=10Gb/s, IF=Iop,

Vm=Vo/(Vo-Vmod)

Rise Time

Fall Time

Note (2), 20 to 80%

Note (1) Eudyna Test System

9.95328Gb/s, PRBS=2

-1, IF=Iop, Vm=Vo and (Vo-Vmod)

Dispersion=800ps/nm, Dispersion penalty at
Bit Error Rate = 1.0E-10

Note (2) Eudyna Test System

9.95328Gb/s, PRBS=2

-1, IF=Iop, Vm=Vo and (Vo-Vmod)

Note (3) Relation between resistance and temperature (

°K) is:

Rth (T) = Rth (25

°C)*exp[B(1/T-1/298)]

Note (4) Reference Figure 7 for Wavelength Table

TEC Capacity

°C

70-Tset

PTEC=3.3W, IF=Iop

TEC Current

1.3

IF=Iop, T=(70-Tset)[°C]

TEC Voltage

2.5

IF=Iop, T=(70-Tset)[°C]

FLD5F20NP-D

1,550nm Modulator

Integrated DFB Laser

FLD5F20NP-D

Fig. 6 Transmission Characteristics

9.95328Gb/s
PRBS=2

-1

0 km
800ps/nm

Average Received Optical

Power (dBm)

Bit Error Rate

-12

-10

-8

-6

-4

-15

-10

Fig. 3 Extinction Ratio vs.

Modulation Applied Voltage

Fig. 4 Cut-off Frequency (S21)

Frequency, f (GHz)

Modulation Applied Voltage (V)

Extinction Ratio (dB)

Relative Output (dB)

-10

-5

-15

-20

0.5

1.0

1.5

2.0

2.5

-12

-9

-6

-3

Fig. 5 RF Return Loss (S11)

Frequency, f (GHz)

Return Loss (dB)

-30

-20

-10

1,550nm Modulator

Integrated DFB Laser

FLD5F20NP-D

FLD5F20NP-D60

1529.55

196.00

±0.1

FLD5F20NP-D59

1530.33

195.90

±0.1

FLD5F20NP-D58

1531.12

195.80

±0.1

FLD5F20NP-D57

1531.90

195.70

±0.1

FLD5F20NP-D56

1532.68

195.60

±0.1

FLD5F20NP-D55

1533.47

195.50

±0.1

FLD5F20NP-D54

1534.25

195.40

±0.1

FLD5F20NP-D53

1535.04

195.30

±0.1

FLD5F20NP-D52

1535.82

195.20

±0.1

FLD5F20NP-D51

1536.61

195.10

±0.1

FLD5F20NP-D50

1537.40

195.00

±0.1

FLD5F20NP-D49

1538.19

194.90

±0.1

FLD5F20NP-D48

1538.98

194.80

±0.1

FLD5F20NP-D47

1539.77

194.70

±0.1

FLD5F20NP-D46

1540.56

194.60

±0.1

FLD5F20NP-D45

1541.35

194.50

±0.1

FLD5F20NP-D44

1542.14

194.40

±0.1

FLD5F20NP-D43

1542.94

194.30

±0.1

FLD5F20NP-D42

1543.73

194.20

±0.1

FLD5F20NP-D41

1544.53

194.10

±0.1

FLD5F20NP-D40

1545.32

194.00

±0.1

FLD5F20NP-D39

1546.12

193.90

±0.1

FLD5F20NP-D38

1546.92

193.80

±0.1

FLD5F20NP-D37

1547.72

193.70

±0.1

FLD5F20NP-D36

1548.51

193.60

±0.1

FLD5F20NP-D35

1549.32

193.50

±0.1

FLD5F20NP-D34

1550.12

193.40

±0.1

FLD5F20NP-D33

1550.92

193.30

±0.1

FLD5F20NP-D32

1551.72

193.20

±0.1

FLD5F20NP-D31

1552.52

193.10

±0.1

FLD5F20NP-D30

1553.33

193.00

±0.1

FLD5F20NP-D29

1554.13

192.90

±0.1

FLD5F20NP-D28

1554.94

192.80

±0.1

FLD5F20NP-D27

1555.75

192.70

±0.1

FLD5F20NP-D26

1556.56

192.60

±0.1

FLD5F20NP-D25

1557.36

192.50

±0.1

FLD5F20NP-D24

1558.17

192.40

±0.1

FLD5F20NP-D23

1558.98

192.30

±0.1

FLD5F20NP-D22

1559.79

192.20

±0.1

FLD5F20NP-D21

1560.61

192.10

±0.1

FLD5F20NP-D20

1561.42

192.00

±0.1

FLD5F20NP-D19

1562.23

191.90

±0.1

FLD5F20NP-D18

1563.05

191.80

±0.1

Figure 7 Wavelength Table

Part Number

Wavelength (nm)

(TL=Tset)

(in vacuum)

Frequency

(THz)

Tolerance (nm)

1,550nm Modulator
Integrated DFB Laser

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: FLD5F20NP-D44

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: FLD5F20NP-D44