NEC's CW InGaAsP
MQW DFB LASER DIODE MODULE
FOR DWDM APPLICATIONS (10 mW MIN)
NX8563
SERIES
FEATURES
•OUTPUT POWER:
Pf = 10 mW MIN
•INTERNAL THERMOELECTRIC COOLER AND ISOLATOR
•HERMETICALLY SEALED 14-PIN BUTTERFLY PACKAGE
• POLARIZATION MAINTAIN FIBER PIGTAIL
• AVAILABLE FOR DWDM WAVELENGTHS BASED ON
ITU-T RECOMMENDATIONS (100 GHz GRID) REFER TO
THE ORDERING INFORMATION
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.
DESCRIPTION
California Eastern Laboratories
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.
PART NUMBER NX8563 Series
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
TSET Laser Set Temperature °C20 35
VFForward Voltage, Pf = 10 mW V 1.2 1.5
IFForward Current, Pf = 10 mW mA 70 125
ITH Threshold Current mA 20 40
PfOptical Output Power from Fiber,
IF = 125 mA, TLD = TSET mW 10
λpPeak Emission Wavelength1, Pf = 10 mW, CW, nm 1527.99 ITU-T11611.78
TLD = TSET
∆v Spectral Line Width, Pf = 10 mW, CW, 3 dB down MHz 1 2
SMSR Side Mode Suppression Ratio, Pf = 10 mW, CW dB 33 45
RIN Relative Intensity Noise, Pf = 10 mW, 20 MHz to 3 GHz dB/Hz -150
ext Polarization Extinction Ratio2, Pf = 10 mW, CW dB 20
ELECTRO-OPTICAL CHARACTERISTICS (TLD = TSET, TC = -20 to +70°C)