NEC's DIRECTLY MODULATED
InGaAsP MQW-DFB
LASER DIODE MODULE
FOR 2.5 GB/s, 110 KM AND 240 KM REACH
DWDM METRO AND CATV APPLICATIONS
NX8563LA
Series
FEATURES
• PEAK OUTPUT POWER
P
f = 10 mW MIN.
• INTERNAL THERMO-ELECTRIC COOLER AND
ISOLATOR
• HERMETICALLY SEALED 14-PIN BUTTERFLY
PACKAGE
• SINGLE MODE FIBER PIGTAIL
• WIDE OPERATION TEMPERATURE RANGE
• AVAILABLE FOR DWDM WAVELENGTHS BASED ON
ITU-T RECOMMENDATIONS
NEC's NX8563LA Series is a 1 550 nm Multiple Quantum
Well (MQW) structured Distributed Feed-Back (DFB) laser
diode module with Single Mode Fiber.
It is designed as directly modulation light source and
ideal for optical transmission systems. The device is
available for Dense Wavelength Division Multiplexing
(DWDM) wavelengths based on ITU-T recommendations,
enabling a wide range of applications.
DESCRIPTION
California Eastern Laboratories
DATA SHEET
SYMBOL PARAMETER AND CONDITIONS UNIT MIN TYP MAX
Tset Laser Set Temperature °C30 45
VFForward Voltage, Pf = 10 mW V 0.9 2.0
Ith Threshold Current mA 20 40
PfOptical Output Power from Fiber, IF = Iop, TLD = Tset mW 10
Iop Operation Current mA 125
Pth Threshold Output Power, IF = Ith µW 100
ηQuantum Effi ciency, CW W/A 0.142 0.17
λpPeak Emission Wavelength, Pf = 10 mW, CW, TLD = Tset nm 1 530 ITU-T *1 1 562
∆ν Spectral Line Width, Pf = 10 mW, CW, 3 dB down MHz 1 5
SMSR Side Mode Suppression Ratio, Pf = 10 mW, under modulation dB 30 35
ZIN Input Impedance Ω25
RIN Relative Intensity Noise, Pf = 10 mW, 20 MHz to 3 GHz dB/Hz −140
tr /tfRise and Fall Time, 20-80%/80-20%, Tc = 25°Cps 120
S11 Input Return Loss, f = 50 MHz to 3 GHz
f = 3 GHz to 6 GHz dB 6
3
BW Band Width, −3 dB, Pf = 10 mW GHz 2.5
DP Dispersion Penalty, Tc = 25°C*2 dB 2.0
ELECTRO-OPTICAL CHARACTERISTICS (TLD = TSET, TC = -20 + 85°C)
Notes:
*1 Available for DWDM wavelengths based on ITU-T recommendation. Please refer to the ORDERING INFORMATION.
*2 2.48832 Gb/s, PRBS 223−1, duty cycle, Extinction Ratio ≥ 8.5 dB, BER = 10−10, NX8563LAS: 1 800 ps/nm(100 km),
NX8563LA: 4 320 ps/nm(240 km)
NX8563LA Series
ABSOLUTE MAXIMUM RATINGS1
(TC = 25°C, unless otherwise specifi ed)
SYMBOL PARAMETER UNIT RATINGS
IFForward Current of LD mA 300
VRReverse Voltage of LD V 2.0
IFForward Current of PD mA 10
VRReverse Voltage of PD V 20
TCOperating Case
Temperature °C−20 to +85
Tstg Storage Temperature °C−40 to +85
Tsld Lead Soldering
Temperature °C 260 (10 sec.)
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
SYMBOL PARAMETER AND CONDITIONS UNIT MIN TYP MAX
ImMonitor Current, Pf = 10 mW, VR = 5 V µA 100 2 000
IDDark Current, VR = 5 V nA 10
γ *1 Tracking Error, Im = const. dB 0.6
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Monitor PD: TLD = TSET, TC = -20 to +85°C)
Pf
(mW)
0ImIm
TLD = Tset, TC = 25˚C
TLD = Tset, TC = –20 to +85˚C
(@ Pf (25˚C) = 10 mW)
10
Pf
Note:
*1 γ = 10 log Pf
10 mW
SYMBOL P ARAMETER AND CONDITIONS UNIT MIN. TYP. MAX.
R Thermistor Resistance, TLD = 25°CkΩ9.5 10.0 10.5
BB Constant K 3 350 3 450 3 550
ICCooler Current, ∆T = 85 − Tset, Pf = 10 mW A 1.2
VCCooler Voltage, ∆T = 85 − Tset, Pf = 10 mW V 2.4
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Thermistor and TEC: TLD = TSET, TC = -20 to +85°C)
NX8563LA Series
ORDERING INFORMATION
N
X8563LA - CD : SC-APC
CC : SC-UPC
Wavelength Code : Refer to Table A
Without : 240 km (4 320 ps/nm)
S : 100 km
(
1 800
p
s/nm
)
Table A: DWDM wavelength base on ITU-T recommendations (@ TLD = Tset)
Wavelength Code ITU-T W avelength*1
(nm)
Frequency
(THz) Wavelength Code ITU-T W avelength*1
(nm)
Frequency
(THz)
303 1530.33 195.90 509 1550.91 193.30
311 1531.11 195.80 517 1551.72 193.20
318 1531.89 195.70 525 1552.52 193.10
326 1532.68 195.60 533 1553.32 193.00
334 1533.46 195.50 541 1554.13 192.90
342 1534.25 195.40 549 1554.94 192.80
350 1535.03 195.30 557 1555.74 192.70
358 1535.82 195.20 565 1556.55 192.60
366 1536.60 195.10 573 1557.36 192.50
373 1537.39 195.00 581 1558.17 192.40
381 1538.18 194.90 589 1558.98 192.30
389 1538.97 194.80 597 1559.79 192.20
397 1539.76 194.70 606 1560.60 192.10
405 1540.55 194.60 614 1561.41 192.00
413 1541.34 194.50
421 1542.14 194.40
429 1542.93 194.30
437 1543.73 194.20
445 1544.52 194.10
453 1545.32 194.00
461 1546.11 193.90
469 1546.91 193.80
477 1547.71 193.70
485 1548.51 193.60
493 1549.31 193.50
501 1550.11 193.40
Note:
*1 The value which omitted and computed the 3rd place below the decimal point
NX8563LA Series
Life Support Applications
These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably be expected
to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and agree to fully indemnify
CEL for all damages resulting from such improper use or sale.
PACKAGE DIMENSIONS (Units in mm)
OPTICAL FIBER DIMENSIONS (UNIT: mm)
A Business Partner of NEC Com
p
ound Semiconductor Devices, Ltd
.
12/15/2003
29.97–0.25
8.2–0.2
5.4
5.15
0.3 1.0
TOP VIEW
20.83–0.25
26.04–0.25
7
8
1
14
8.89–0.13 10 MIN.
15.24
20.8
12.7–0.2
6.0
0.9
1.25
2.54
0.5
4— 2.67
φ
PD L
+
R
LD
#8 #14
#7 #1
Optical Fiber (SMF)
Length: 1 000 MIN.
Cooler
Thermistor
PIN CONNECTIONS
Pin No. Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Function
Function
Thermistor
Thermistor
Bias
PD Anode
PD Cathode
Cooler Anode
Cooler Cathode
GND
GND
GND
GND, LD Anode
Signal Input
GND
GND
PARAMETER UNIT SPECIFICATION
Outer Diameter mm 0.9±0.1
Minimum Fiber Bending Radius mm 30
Fiber Length mm 1 000 MIN.
SC-UPC
Fiber Len
g
th: 1 000 mm MIN.
35±2 mm
8.99±0.5 mm
SMF
SC-APC : Cut angle 8°
