鈥?/div>
HERMETICALLY SEALED 14-PIN BUTTERFLY PACKAGE
鈥?POLARIZATION MAINTAIN FIBER PIGTAIL
鈥?AVAILABLE FOR DWDM WAVELENGTHS BASED ON
ITU-T RECOMMENDATIONS (100 GHz GRID) REFER TO
THE ORDERING INFORMATION
NX8563
SERIES
DESCRIPTION
NEC's NX8563 Series are a 1550 nm Multiple Quantum Well
(MQW) structured Distributed Feed-Back (DFB) laser diode
with Polarization Maintain Fiber (PMF). This device is de-
signed as Continuous Wave (CW) light source and ideal for
optical transmission systems in which external modulators are
used.
This device is available for Dense Wavelenght Division Multi-
plexing (DWDM) wave lengths based on ITU-T recommenda-
tions, enabling a wide range of applications.
ELECTRO-OPTICAL CHARACTERISTICS
(T
LD
= T
SET
, T
C
= -20
PART NUMBER
SYMBOLS
T
SET
V
F
I
F
I
TH
P
f
位
p
鈭唙
SMSR
RIN
ext
PARAMETERS AND CONDITIONS
Laser Set Temperature
Forward Voltage, P
f
= 10 mW
Forward Current, Pf = 10 mW
Threshold Current
Optical Output Power from Fiber,
I
F
= 125 mA, T
LD
= T
SET
Peak Emission Wavelength
1
, P
f
= 10 mW, CW,
T
LD
= T
SET
Spectral Line Width, P
f
= 10 mW, CW, 3 dB down
Side Mode Suppression Ratio, P
f
= 10 mW, CW
Relative Intensity Noise, P
f
= 10 mW, 20 MHz to 3 GHz
Polarization Extinction Ratio
2
, P
f
= 10 mW, CW
UNITS
掳C
V
mA
mA
mW
nm
MHz
dB
dB/Hz
dB
to +70掳C)
NX8563 Series
MIN
20
1.2
70
20
10
1527.99
ITU-T
1
1
33
20
45
-150
1611.78
2
TYP
MAX
35
1.5
125
40
Notes:
1. Available for DWDM based on ITU-T recommendations. Please refer to Ordering Information.
2. Polarization state of LD is aligned parallel to the slow axis.
California Eastern Laboratories
1
2
3
4
5
6
7
