FEATURES NEC's 55 nm InGaAsP MQW DFB LASER DIODE IN COAXIAL PACKAGE for 6 Mb/s APPLICATION PEAK EMISSION WAVELENGTH: λp = 55 nm OPTICAL OUTPUT POWER: =. mw INTERNAL OPTICAL ISOLATOR InGaAs MONITOR PIN-PD WIDE OPERATING TEMPERATURE RANGE: TC = - to +85 C WITH SC-UPC CONNECTOR BASED ON TELCORDIA RELIABILITY PART NUMBER DESCRIPTION NX85BE-CC NX85CE-CC NEC's NX85BE-CC and NX85CE-CC are 55 nm Distributed Feed-Back (DFB) laser diode coaxial modules with optical isolator. These modules are ideal as a light source for Synchronous Digital Hierarchy (SDH) system, STM-, long-haul L-., L-. ITU-T recommendations. ELECTRO-OPTICAL CHARACTERISTICS (TC = - to +85 C, unless otherwise specified) NX85BE-CC, NX85CE-CC SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX Optical Output Power from Fiber, CW mw. VOP Operating Voltage, =. mw V..6 ITH Threshold Current TC = +5 C ma 5 5 ma 5 PTH Threshold Output Power, IF = ITH µw IMOD Modulation Current =. mw, TC = 5 C ma 5 =. mw ma 9 55 ηd Differential Efficiency =. mw, TC = 5 C W/A.6..5 =. mw W/A.6. ηd Temperature Dependence of Differential Efficiency, db - -.6 ηd (@ TC C) ηd = log ηd (@ 5 C) Kink Kink, = Up to. mw (Refer to defenitions) % ± λp Peak Emission Wavelength, =. mw nm 5 55 57 λ/ T Temperature Dependence of Peak Emission Wavelength nm/ C.. λ Spectral Width, =. mw, - db down width nm.. SMSR Side Mode Suppression Ratio, =. mw db tr Rise Time, to 9%, Ppk =. mw, IF = ITH ns.5 tf Fall Time, 9 to %, Ppk =. mw, IF = ITH ns.5 Monitor Current, VR = 5 V, =. mw µa ID Monitor Dark Current VR = 5 V, TC = 5 C na. 5 VR = 5 V na 5 Ct Monitor PD Terminal Capacitance, VR = 5 V, f = MHz pf. LINm Linearity, VR = 5 V, =. to. mw (Refer to defenitions) % γ Tracking Error, = const. (Refer to defenitions) db.5. California Eastern Laboratories
NX85BE-CC, NX85CE-CC ABSOLUTE MAXIMUM RATINGS (TC = 5 C, unless otherwise specified) SYMBOLS PARAMETERS UNITS RATINGS IF Forward Current of LD ma 5 Optical Output Power mw 5. VR Reverse Voltage of LD V. IF Forward Current of PD ma. VR Reverse Voltage of PD V 5 TC Operating Case Temperature C - to +85 TSTG Storage Temperature C - to +85 TSLD Lead Soldering Temperature ( s) C 6 RH Relative Humidity, % 85 (noncondensing) Note:. Operation in excess of any one of these parameters may result in permanent damage. PARAMETER DEFINITIONS Kink : kink.. Linearity : LINm PL Tracking Error : γ dpo dpl dpo d IF - IF - ηd IF d kink = x [%] d = dpo MAX. dpl. LINm = x [%] PL TC = 5 C. TC = - to +85C dpl = dpo MAX. < PL <. γ = log. [db]
NX85BE-CC, NX85CE-CC TYPICAL PERFORMANCE CURVES (TC = 5 C, unless otherwise specified) Threshold Current, ITH Operation Current, IOP OPtical Output Power, Differential Efficiency from Fiber, ηd (W/A).....8 OPTICAL OUTPUT POWER vs. FORWARD CURRENT TC = - C 5 C 6 Forward Current, IF IOP at = mw ITH 8 85 C OPERATING CURRENT AND THRESHOLD CURRENT vs. CASE TEMPERATURE -6 - - 6 8 TEMPERATURE DEPENDENCE OF DIFFERENTIAL EFFICIENCY FROM FIBER..6. -6 - - 6 8 OPtical Output Power, Forward Current, IF.... 5. OPTICAL OUTPUT POWER vs. MONITOR CURRENT. TC = - C +5 C.8..6 Monitor Current, IM FOWARD CURRENT vs. FORWARD VOLTAGE Remark: The graphs indicate nominal characteristics Peak Emission Wavelength, λp (nm).5..5. +85 C Forward Voltage, VF (V) TEMPERATURE DEPENDENCE OF PEAK EMISSION WAVELENGTH 56 555 55 55 5-6 - - 6 8..5
NX85BE-CC, NX85CE-CC TYPICAL PERFORMANCE CURVES (TC = 5 C, unless otherwise specified) Bit Error Rate -6-7 -8-9 - - - Relative Intensity, (db) - - - - - -5-6 -7 5. after km -9 LONGITUDINAL MODE FROM FIBER -8-7 55. Wavelength, λ (nm) -6 TC = - C, Ref = - db, 6 Mbps-NRZ, Vp-p, IB = ITH X.9 Remark: The graphs indicate nominal characteristics -5 - -6-7 -8-9 - - - 56. - Relative Intensity, (db) ERROR RATE CHARACTERISTICS after km -9-8 -7-6 TC = 5 C, Ref = - db, 6 Mbps-NRZ, Vp-p, IB = ITH X.9-5 Average Received Power, P (dbm) - EYE DIAGRAM 6 Mb/s-NRZ, Ref = -db, Vp-p (6 db ATT), IB = ITH X.9 Time Base (5 ps/div.) -6-7 -8-9 - - - - after km -9-8 -7-6 TC = 85 C, Ref = - db, 6 Mbps-NRZ, Vp-p, IB = ITH X.9-5 -
NX85BE-CC, NX85CE-CC OUTLINE DIMENSIONS (Units in mm) Optical Fiber(SMF) Length:.5 m With SC connector ±φ. φ7±. P.C.D. = φ NX85BE-CC φ.±.5 5 7.8±. 8..±..±. φ6±..7±. 7.±. PIN CONNECTIONS.±. ±. 7.±..7±. φ.9 CASE φ.5±.5 OPTICAL FIBER CHARACTERISTICS PARAMETER SPEC UNIT Mode Field Diameter 9.5± µm Cladding Diameter 5± µm Maximum Cladding Noncircularity % Maximum Core/Cladding Concentricity.6 % Outer Diameter.9±. mm Cut-off Wavelength to 7 nm Minimum Fiber Bending Radius mm Fiber Length 5±5 mm Flammability UL58 VW- PD LD Fiber Length: 5±5 mm Optical Fiber(SMF) Length:.5 m With SC connector.5±. φ7±. φ6. ±.5 6. NX85CE-CC φ.±.5 5 8. 8.±..5±. 9.5±. PIN CONNECTIONS P.C.D. = φ -φ.5 5± mm 7±. ORDERING INFORMATION SC-UPC Connector φ.9. PD PART NUMBER AVAILABLE CONNECTOR NX85BE-CC With SC-PC Connector NX85CE-CC LD 8.99±.5 mm -φ.5±.5 CASE DESCRIPTION Flat Mount Flange Vertical Mount Flange 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. // A Business Partner of NEC Compound Semiconductor Devices, Ltd.