Data Sheet PL10186EJ03V0DS

7

NX8564/8565/8566LE Series

ELECTRO-OPTICAL CHARACTERISTICS (TLD = Tset, TC =

−20 to +70°C, unless otherwise specified)

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

Laser Set Temperature

Tset

*1

20

35

°C

Operating Current

Iop

50

60

80

mA

Modulation Center Voltage

Vcenter

Under modulation

*2

−1.5

−1.2

−0.5

V

Modulation Voltage

Vmod

Under modulation

*2

2

3

V

Forward Voltage of LD

VFLD

IFLD = Iop

1.6

2.0

V

Threshold Current

Ith

7

20

mA

Optical Output Power from Fiber

Pf

IFLD = Iop, Under modulation

*2

(NX8564/65LE Series)

−5

−2

dBm

IFLD = Iop, Under modulation

*2

(NX8566LE Series)

0

1

Peak Emission Wavelength

λp

IFLD = Iop, VEA = 0 V

1 528

ITU-T

*3

1 565

nm

1 574

1 609

Side Mode Suppression Ratio

SMSR

IFLD = Iop, VEA = 0 V

30

> 37

dB

Extinction Ratio

ER

IFLD = Iop, Under modulation

*2

10

> 11

dB

Rise Time

tr

IFLD = Iop, 20-80%, Under modulation

*2

70

125

ps

Fall Time

tf

IFLD = Iop, 80-20%, Under modulation

*2

70

125

ps

Dispersion Penalty

DP

IFLD = Iop, Under modulation

*2, 4

< 1.5

2.0

dB

Isolation

Is

23

dB

Relative Intensity Noise

RIN

10 MHz to 10 GHz, VEA = 0 V, IFLD = Iop

<

−135

−130

dB/Hz

Input Return Loss

S11

IFLD = Iop, VEA =

−1 V, 50 Ω,

f = 130 MHz to 2 GHz

−8

dB

IFLD = Iop, VEA =

−1 V, 50 Ω,

f = 2 to 2.5 GHz

−5

*1 NX8564/65/66LE Series

: Tset is a certain point between 20 and 35

°C

NX8564/65/66LE

××× Series : Tset is set at a certain point between 20 and 35°C for ITU-T grid wavelength

*2 NX8564LE : C-band 360 km, L-band 288 km (6480 ps/nm) SMF under modulation

NX8565LE : C-band 600 km, L-band 480 km (10800 ps/nm) SMF under modulation

NX8566LE : C-band 240 km, L-band 192 km (4320 ps/nm) SMF under modulation

2.48832 Gb/s, PRBS 2

23

−1, VEA = Vcenter ± 1/2Vmod, IFLD = Iop, TLD = Tset, NEC Test System

Vcenter : a certain point between

−1.5 and −0.5 V

Vmod

: a certain point 3 V or below

Iop

: a certain point between 50 and 80 mA

*3 Available for DWDM wavelengths based on ITU-T recommendations (100 GHz grid).

Please refer to ORDERING INFORMATION.

*4 BER = 10−

10