NEC'S EA MODULATOR INTEGRATED InGaAsP MQW DFB LASER DIODE MODULE FOR 2.5 Gb/s ULTRALONG-REACH 360, 600, 240 km DWDM APPLICATIONS NX8564/ NX8565/ NX8566LE Series FEATURES DESCRIPTION * INTEGRATED ELECTROABSORPTION MODULATOR NEC's NX8564/8565/8566LE Series are Electro-Absorption (EA) modulator integrated, 1550 nm Multiple Quantum Well (MQW) structured Distributed Feed-Back (DFB) laser diodes. The module is capable of 2.5 Gb/s applications of over 360, 600, 240 km ultralong-reach and available for Dense Wavelength Division Multoplexing (DWDM) wavelenghts based on ITU-T recommendations, enabling a wide range of applications. * VERY LOW DISPERSION PENALTY NX8564LE-BC/CC - over 360 km (6480 ps/nm) NX8565LE-BC/CC - over 600 km (10800 ps/nm) NX8566LE-BC/CC - over 240 km (4320 ps/nm) * LOW MODULATION VOLTAGE * AVAILABLE FOR DWDM WAVELENGHT BASED ON ITU-T RECOMMENDATION (100 GHz grid, refer to ordering information) ELECTRO-OPTICAL CHARACTERISTICS (TLD = Tset, TC = -20 to +70C, unless otherwise specied) PART NUMBER SYMBOLS TSET IOP Vcenter PARAMETERS AND CONDITIONS Laser Set Temperature1 Operating Current Modulation Center Voltage2 Voltage2 Vmod Modulation VFLD Forward Voltage of LD, IFLD = IOP ITH Threshold Current NX8564/8565/8566LE SERIES UNITS Optical Output Power from Fiber, (NX8564/65LE Series) IFLD = IOP, Under modulation2 20 50 60 100 V -1.5 -1.2 -0.5 V - 2 3 V - 1.6 2.0 mA - 7 20 ER 35 -5 -2 - 0 1 - 1530 Specied to ITU-T3 1563 dBm Peak Emission Wavelength, IFLD = IOP, VEA = 0 V nm Side Mode Suppression Ratio, IFLD = IOP, VEA = 0 V dB 30 >37 1574 SMSR MAX C (NX8566LE Series) P TYP mA IFLD = IOP, Under modulation2 Pf MIN Extinction Ratio, IFLD = IOP, Under modulation2 1609 - dB 10 >11 - tf Rise Time, IFLD = IOP, 20-80%, Under modulation2 ps - 70 125 tr Rise Time, IFLD = IOP, 80-20%, Under modulation2 ps - 70 125 Notes: 1. NX8564/65/66LE Series : Tset is a certain point between 20 and 35C NX8564/65/66LExxx Series : Tset is a certain point between 20 and 35C for ITU-T grid wavelength 2. NX8564LE: C-band 360 km, L-band 288 km (6480 ps/nm) SMF under modulation NX8564LE: C-band 360 km, L-band 288 km (6480 ps/nm) SMF under modulation NX8564LE: C-band 360 km, L-band 288 km (6480 ps/nm) SMF under modulation 2.48832 Gb/s, PRBS 223 -1, VEA = Vcenter 1/2 Vmod, 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 wavelenght based on ITU-T recommendation (100 GHz grid). Please refer to ORDERING INFORMATION. California Eastern Laboratories NX8564/8565/8566LE SERIES ELECTRO-OPTICAL CHARACTERISTICS (TLD = 25C, TC = -20 to +70C) PART NUMBER SYMBOLS NX8564/8565/8566LE SERIES PARAMETERS AND CONDITIONS UNITS modulation2,4 DP Dispension Penalty, IFLD = IOP, SMF Under IS Isolation dB RIN Relative Intensity Noise10 MHz to 10 GHz, VRM = 0 V, TLD, IOP dB S11 Input Return Loss dB MIN TYP MAX <1.5 2 <-135 -130 dB IFLD = IOP, VEA = -1 V, 50 23 -8 130 MHz to 2 GHz IFLD = IOP, VEA = -1 V, 50 -5 2 GHz to 2.5 GHz Notes: 2. NX8564LE: C-band 360 km, L-band 288 km (6480 ps/nm) SMF under modulation NX8564LE: C-band 360 km, L-band 288 km (6480 ps/nm) SMF under modulation NX8564LE: C-band 360 km, L-band 288 km (6480 ps/nm) SMF under modulation 2.48832 Gb/s, PRBS 223 -1, VEA = Vcenter 1/2 Vmod, 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 4. BER 10-10 SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX Applicable to Monitor PD, (TLD = Tset, TC = -20 to +70C) Im Monitor Current, IFLD = IOP, VEA = 0 V A 20 100 1000 ID Dark Current, VRPD = 5 V, VEA = 0 V nA 10 1 Tracking Error, Im = const. dB 0.5 Ct Terminal Capacitance, VRPD = 5 V, f = 1 MHz pF 15 Applicable to Thermistor and TEC, (TLD = Tset, TC = -20 to +70C) R Thermistor Resistance, TLD = 25C k 9.5 10.0 10.5 B B Constant K 3350 3450 3550 IC Cooler Current A 1.2 VC Cooler Voltage V 2.4 Note: 1. Tracking error: Pf (mW) Pop TLD = TC = 25C TLD = 25C, TC = -20 to +70C Pf 0 = 10 log Im (at Pf (25C) = Pop) Im Pf POP [dB] NX8564/8565/8566LE SERIES ABSOLUTE MAXIMUM RATINGS1 (TC = 25C, unless otherwise specied) SYMBOLS PARAMETERS UNITS Pf RATINGS Optical Output Power 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 5 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 -20 to +70 TSTG Storage Temperature C -40 to +85 TSLD Lead Soldering Temp. (10 s) C 260 Note: 1. Operation in excess of any one of these parameters may result in permanent damage. NX8564/8565/8566LE SERIES ORDERING INFORMATION NX856 LE CC : SC-UPC connector BC : FC-UPC connector (option) Without wavelength code : Wavelength is a certain point between 1528.77 to 1563.04 nm With wavelength code : Refer to Table A 4 : 360 km (6480 ps/nm) 5 : 600 km (10800 ps/nm) 6 : 240 km (4320 ps/nm) TABLE A: DWDM wavelengths based on ITU-T recommendations (@ TLD = Tset) Wavelength Code ITU-T Wavelength *1 (nm) Frequency (THz) Wavelength Code ITU-T Wavelength *1 (nm) Frequency (THz) 287 1528.77 196.10 485 1548.51 193.60 295 1529.55 196.00 493 1549.31 193.50 303 1530.33 195.90 501 1550.11 193.40 311 1531.11 195.80 509 1550.91 193.30 318 1531.89 195.70 517 1551.72 193.20 326 1532.68 195.60 525 1552.52 193.10 334 1533.46 195.50 533 1553.32 193.00 342 1534.25 195.40 541 1554.13 192.90 350 1535.03 195.30 549 1554.94 192.80 358 1535.82 195.20 557 1555.74 192.70 366 1536.60 195.10 565 1556.55 192.60 373 1537.39 195.00 573 1557.36 192.50 381 1538.18 194.90 581 1558.17 192.40 389 1538.97 194.80 589 1558.98 192.30 397 1539.76 194.70 597 1559.79 192.20 405 1540.55 194.60 606 1560.60 192.10 413 1541.34 194.50 614 1561.41 192.00 421 1542.14 194.40 622 1562.23 191.90 429 1542.93 194.30 630 1563.04 191.80 437 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 Note: 1. The value which omitted and computed the 3rd place below the decimal point. NX8564/8565/8566LE SERIES OPTICAL OUTPUT POWER FROM FIBER (CW) vs. FORWARD CURRENT FORWARD CURRENT vs. FORWARD VOLTAGE 150 4.0 Forward Current IF (mA) OPtical Output Power from Fiber (CW), Pf (mW) TYPICAL PERFORMANCE CURVES (TLD = +25C, Unless otherwise specied) 3.0 2.0 1.0 0 50 100 100 50 0 150 Frequency, IF (mA) 0.5 1.0 1.5 2.0 Frequency Voltage VF, (V) EXTINCTION RATIO vs. MODULATION VOLTAGE (CW) LONGITUDINAL MODE 0 0 5 Relative Intensity Extinction Ratio ER (dB) -10 10 15 -30 -40 -50 20 -60 25 1 0 2 3 Modulation Voltage (CW) VRmpp (V) THERMISTOR RESISTANCE vs. AMBIENT TEMPERATURE 50 30 Forward Current IF (mA) -20 20 10 5 3 2 1 0 10 20 30 40 50 60 70 75 Ambient Temperature TA (C) Remark:The graphs indicate nominal characteristics. 1540.0 1545.0 1555.0 15550 Wavelenght (nm) 1560.0 NX8564/8565/8566LE SERIES 600 km STANDARD FIBER TRANSMISSION EXAMPLE (NX8565LE SERIES) TEST SETUP 120 km 120 km 2.5 Gb/s TX EDFA EDFA EDFA 120 km EDFA RX EDFA EDFA 120 km 120 km ERROR RATE CHARACTERISTICS 10-4 2.48832 Gb/s, NRZ 2 VP-P, PRBS 223-1, Iop = 70 mA, TC = 25C, Vcenter = -1.2 V, Vmod = 2.0 V Bit Error Rate 10-5 10-6 10-7 10-8 10-9 10-10 10-11 back to back after 600 km 10-12 10-13 -42 -40 -38 -36 -34 -32 -30 -28 Received Power, P (dBm) EYE DIAGRAM Relative Intensity (10 mV/div.) Relative Intensity (20 mV/div.) EYE DIAGRAM Back to Back (100 ps/div.) Remark:The graphs indicate nominal characteristics. After 600 km (100 ps/div.) NX8564/8565/8566LE SERIES OUTLINE DIMENSIONS (Units in mm) 15.24 8.0 5.4 22.0 MAX. 1 8 0.9 7 14 TOP VIEW #7 #1 + Cooler 12.7-0.15 2.67 6.0 MAX. 1.25 4 8.89-0.13 10 MIN. 2.54 PD Thermistor LD Fiber MOD #8 #14 Nose PIN CONNECTIONS 20.83-0.13 Pin No. 26.04-0.13 8.0 0.75 Optical Fiber (SMF) Length : 1 000 MIN. 29.97-0.25 1 2 3 4 5 6 7 Function Thermistor Thermistor LD DC Bias PD Anode PD Cathode Cooler Anode Cooler Cathode Pin No. 8 9 10 11 12 13 14 Function GND GND NC GND Signal Input (MOD), 50 RF Input GND GND OPTICAL FIBER CHARACTERISTICS UNITS SPECIFICATION Mode Field Diameter PARAMETER m 9.30.5 Cladding Diameter m 1251 Tight Buffer Diameter m 900100 Cut-off Wavelenght nm < 1270 dB/km < 0.3 Minimum Fiber Bending Radius mm 30 Fiber Length mm Attenuation 1525 to 1575 nm Flammability 1225 MIN UL1581VW-1 -CC : SC-UPC connector -BC : FC-UPC connector 8.990.5 mm 352 mm Fiber Length: 1 000 mm MIN. 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. 05/16/2003