NEC's EA MODULATOR
AND WAVELENGTH MONITOR
INTEGRATED 1550 nm
MQW-DFB LASER DIODE MODULE
FOR 10 Gb/s APPLICATIONS
NX8560SJ
Series
FEATURES
INTEGRATED ELECTRO-ABSORPTION MODULATOR
WAVELENGTH MONITOR FUNCTION
10 Gb/s TRANSMISSION UP TO 40 KM SSMF
7-PIN BUTTERFLY PACKAGE WITH GPO CONNECTOR
AVAILABLE FOR DWDM WAVELENGTH
BASED ON ITU-T RECOMMENDATION
NEC's NX8560SJ Series is an Electro-Absorption (EA) Mod u -
la tor and wavelength monitor intergraded, 1550 nm Multiple
Quantum Well (MQW) struc tured Distributed Feed-Back (DFB)
laser diode module. It is capable of transmitting up to 40 km
standard single mode Þ ber (dispersion: 800 ps/nm) for 10 Gb/s
applications with built in wavelength monitor.
DESCRIPTION
Note:
1. TSET is a certain point between 20°C and 35°C for ITU-T grid wavelength.
2. 40 km SMF under modulation, 9.95328 GB/S, PRBS 223_1, VEA = VCENTER ± 1/2VMOD, IFLD = Iop, NEC Test System
Vcenter: a certain point between -2.0 V and -0.5 V.
Vmod: a certain point 3 V or below.
Iop: a certain point between 50 mA and 80 mA.
3. Available for DWDM wavelength based on ITU-T recommendations (50 GHz grid). Please refer to ordering information.
4. BER = 10-10.
PART NUMBER NX8560SJ Series
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
TSET Laser Set Temperature 1 °C 20 35
Iop Operating Current mA 50 60 80
VCENTER Modulation Center Voltage V -2.0 -0.5
VMOD Modulation Voltage V 2 3
VFLD Forward Voltage of LD, IFLD = Iop V 2.0
ITH Threshold Current mA 7 20
Pf Optical Output from Fiber, Under modulation2 dBm -3 -2
λp Peak Emission Wavelength, IFLD = Iop, VEA = 0 V, TLD = TSET nm 1528 ITU-T3 1564
SMSR Side Mode Suppression Ratio, IFLD = Iop, VEA = 0 V dB 30 > 37
ER Extinction Ratio, Under modulation2 dB 10 11
tr Rise Time, 20-80%, Under modulation2 ps 40
tf Fall Time, 80-20%, Under modulation2 ps 40
DP Dispersion Penalty, 800 ps/nm under modulation2, 4 dB 2.0
IS Optical Isolation dB 23
S11 RF Return Loss,
IFLD = IOP, VEA = 1 V, 50 , f = 130 MHz to 5 GHz dB -10 -8
IFLD = IOP, VEA = 1 V, 50 , f = 5 GHz to 10 GHz dB -8 -5
ELECTRO-OPTICAL CHARACTERISTICS (TLD = TSET, TC = -5 + 70°C, BOL unless otherwise speciÞ ed)
California Eastern Laboratories
PRELIMINARY DATA SHEET
NX8560SJ Series
PART NUMBER NX8560SJ-CC
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
Im (Pf) Monitor Current, VRPD = 5V, IFLD = IOP µA 10 200
Im (λp) Monitor Current, VRPD = 5V, IFLD = IOP, Locking point µA 5 100
Im (λ) Operation Region1 % 25 75
|λ1-λ2| pm 90
ηλ1 Discrimination Slope, VRPD = 5V, IFLD = IOP, Locking point µA/pm 0.24
ID Dark Current, VRPD = 5 V, VEA = 0 V nA 10
Ct Terminal Capacitance, VRPD = 5 V, f = 1 Mhz pF 15
γ2 Tracking Error, Im = const. dB 0.5
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Monitor PD: TLD = TSET, TC = -5 to +70°C, BOL)
Note:
1. Operation region, Discrimination slope, Slope assignment.
PART NUMBER NX8560SJ Series
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
R Thermistor Resistance, TLD = 25°C k 9.5 10.0 10.5
B B Constant K 3350 3450 3550
IC Cooler Current, TLD = Tset A 1.2
VC Cooler Voltage, TLD = Tset V 2.4
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Thermistor and TEC: TC = -5 to +70°C)
ηλ = | I1 – I2 |
| λ1 λ2 |
Im @ 0%
I2: Im @ 25%
Im (λp)
I1: Im @ 75%
Im @ 100%
0λ1λ2
λ (nm)
λp
Negative Slope
Operation region
Locking Point
Im @ 0%
I2: Im @ 25%
Im (λp)
I1: Im @ 75%
Im @ 100%
0λ1λ2
λ (nm)
λp
Positive Slope
Operation region
Locking Point
Im
Im
0
(mW)
Pf
Pop
Pf
TLD = Tset, TC = 25 ºC
TLD = Tset, TC = –20 to 70 ºC γ = Pf
Pop
10 log [dB]
2. Tracking Error: γ
NX8560SJ Series
SYMBOLS PARAMETERS UNITS RATINGS
Pf Optical Output from Fiber mW 10
IFLD Forward Current of LD mA 150
VRLD Reverse Voltage of LD V 2.0
VFm Forward Voltage of Modulator V 1
VRm Reverse Voltage of Modulator V 4
IFPD Forward Current of PD mA 1
VRPD Reverse Voltage of PD V 10
IC Cooler Current A 1.5
VC Cooler Voltage V 2.5
TC Operating Case Temperature °C -5 to +70
TSTG Storage Temperature °C -40 to +85
TSLD Lead Soldering °C 350
Temperature (3 s)
ABSOLUTE MAXIMUM RATINGS1
(TC = 25°C, unless otherwise speciÞ ed)
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
ORDERING INFORMATION
NX8560SJ
CC: SC-UPC connector
BC: FC-UPC connector (option)
Wavelength code: Refer to Table A
NX8560SJ Series
Wavelength Code ITU-T Wavelength *1
(nm)
Frequency
(THz) Wavelength Code ITU-T Wavelength *1
(nm)
Frequency
(THz)
287 1528.773 196.10 457 1545.720 193.95
291 1529.163 196.05 461 1546.119 193.90
295 1529.553 196.00 465 1546.518 193.85
299 1529.553 195.95 469 1546.917 193.80
303 1530.334 195.90 473 1547.316 193.70
307 1530.725 195.85 477 1547.715 193.70
311 1531.116 195.80 485 1548.515 193.60
315 1531.507 195.75 489 1548.915 193.55
318 1531.898 195.70 493 1549.315 193.50
322 1532.290 195.65 497 1549.715 193.45
326 1532.681 195.60 501 1550.116 193.40
330 1533.073 195.55 505 1550.517 193.35
334 1533.465 195.50 509 1550.918 193.30
338 1533.073 195.45 513 1551.319 193.25
342 1534.250 195.40 517 1551.721 193.20
346 1534.643 195.35 521 1552.122 193.15
350 1535.036 195.30 525 1552.524 193.10
354 1535.429 195.25 529 1552.926 193.05
358 1535.822 195.20 533 1553.329 193.00
362 1536.216 195.15 537 1553.731 192.95
366 1536.643 195.10 541 1554.134 192.90
370 1537.003 195.05 545 1554.537 192.85
373 1537.397 195.00 549 1554.940 192.80
377 1537.792 194.95 553 1555.343 192.75
381 1538.186 194.90 557 1555.747 192.70
385 1538.581 194.85 561 1556.151 192.65
389 1538.976 194.80 565 1556.555 192.60
393 1539.371 194.75 569 1556.959 192.55
397 1539.766 194.70 573 1557.363 192.50
401 1540.162 194.65 577 1557.768 192.45
405 1540.557 194.60 581 1558.173 192.40
409 1540.953 194.55 585 1558.578 192.30
413 1541.349 194.50 589 1558.983 192.30
417 1541.746 194.45 593 1559.389 192.25
421 1542.142 194.40 597 1559.794 192.20
425 1542.539 194.35 602 1560.200 192.15
429 1542.936 194.30 606 1560.606 192.10
433 1543.333 194.25 610 1561.013 192.05
437 1543.730 194.20 614 1561.419 192.00
441 1544.128 194.15 618 1561.826 191.95
445 1544.526 194.10 622 1562.233 191.90
449 1544.924 194.05 626 1562.640 191.85
453 1545.322 194.00 630 1563.047 191.80
TABLE A: DWDM wavelengths based on ITU-T recommendations (@ TLD = Tset)
Note:
1. λ monitor slope: Channel frequency for 191.80 THz + 2n × 0.05 THz is assigned on negative slope.
Channel frequency for 191.80 THz + (2n + 1) × 0.05 THz is assigned on positive slope.
n is a positive integer including zero.
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.
NX8560SJ Series
OUTLINE DIMENSIONS (Units in mm)
PARAMETER UNITS SPECIFICATIONS
Mode Field Diameter µm 9.3±0.5
Cladding Diameter µm 125±1
Tight Buffer Diameter µm 900±100
Cut-off Wavelength nm <1270
Attenuation 1525 to 1575 dB/km <0.3
Minimum Fiber Bending Radius mm 30
Fiber Length mm 900 MIN
Flammability UL1581 VW-1
OPTICAL FIBER CHARACTERISTICS
8.99±0.5 mm
35±2 mm
Fiber Length: 900 mm MIN.
-CC : SC-UPC Connector
-BC : FC-UPC Connector
Optical Fiber (SMF)
Length : 900 MIN
30.0
0.75
20.83±0.13
26.04±0.13
15.24
71
2.54
22.0 MAX
4 - φ2.67
1.25
0.9
10 MIN
8.89±0.13 12.7±0.15
6.0
8.0
#7 #1
Cooler
5.4
5.08
+-
PD
PD (λ
p
)
(P
f
)
LD
Thermistor
MOD
4.83
A Business Partner of NEC Compound Semiconductor Devices, Ltd.
07/29/2003
PIN No. FUNCTION
1 PD (λp) Anode (-)
2 THERMISTOR
3 LD DC Bias (+)
4 PD (Pf) ANODE (-)
5 PD (λp) AND
PD (Pf) CATHODE (+)
6 COOLER (+)
7 COOLER (-)
PIN CONNECTIONS