nec's 1310 nm ingaasp mqw fp laser diode in coaxial package for 622 mb/s applications NX7302BA-CC nx7302ca-cc features ? center wavelength: c = 1310 nm ? optical output power: p f = 0.2 mw ? low threshold current: i th = 9 ma ? high cutoff frequency: f c = 2.0 ghz ? ingaas monitor pin-pd ? with sc-upc connector ? wide operating temperature range: -40 to +85 c ? based on telcordia reliability nec's NX7302BA-CC and nx7302ca-cc are 1310 nm fabry- perot (fp) laser diode coaxial modules with single mode fiber. they have a multiple quantum well (mqw) structure and a built-in ingaas monitor photo diode. these modules are ideal as light sources for synchronous digital hierarchy (sdh) systems, stm-4 and short-haul s-4.1 itu-t recommenda- tions. description california eastern laboratories part number NX7302BA-CC, nx7302ca-cc symbols parameters and conditions units min typ max p f optical output power from fiber mw 0.2 v op operating voltage, p f = 0.2 mw v 1.2 1.5 i th threshold current t c = +25 cma4 9 20 ma 2 50 p th threshold output power, i f = i th w15 i mod modulation current p f = 0.2 mw, t c = 25 cma 7 15 20 p f = 0.2 mw ma 5 40 d differential efficiency p f = 0.2 mw, t c = 25 c w/a 0.010 0.015 0.025 p f = 0.2 mw w/a 0.005 0.040 ? d temperature dependence of differential efficiency, db -3 -2 kink kink, p f = up to 0.24 mw (refer to definitions) % 20 c center wavelength, p f = 0.2 mw, rms (-20 db) nm 1274 1310 1356 ? / ? t temperature dependence of center wavelength nm/ c 0.4 0.5 spectral width, p f = 0.2 mw, rms (-20 db) nm 1.3 2.5 f c cut-off frequency, -3 db ghz 2.0 t r rise time, 10 to 90%, p pk = 0.2 mw, i f = i th ns 0.2 0.5 t f fall time, 90 to 10%, p pk = 0.2 mw, i f = i th ns 0.3 0.5 applicable to monitor pd: t c = -40 to +85 c unless otherwise specified i m monitor current, v r = 5 v, p f = 0.2 mw a 100 700 1200 i d dark current v r = 5 v, t c = 25 cna 0.1 50 v r = 5 v na 10 500 c t terminal capacitance, v r = 5 v, f = 1 mhz pf 20 lin m linearity, v r = 5 v, p f = 0.02 to 0.2 mw % 10 (refer to definitions) tracking error, im = const. (refer to definitions) db 0.5 1.0 electro-optical characteristics (t c = -40 to +85 c, unless otherwise specified) ? d = 10 log d (@ t c c) d (@ 25 c)
absolute maximum ratings 1 (t c = 25 c, unless otherwise specified) symbols parameters units ratings p f optical output power from fiber mw 0.5 i f forward current of ld ma 150 v r reverse voltage of ld v 2.0 i f forward current of pd ma 10 v r reverse voltage of pd v 20 t c operating case temperature c -40 to +85 t stg storage temperature c -40 to +85 t sld lead soldering temperature (10 s) c 260 rh relative humidity (noncondensing) % 85 note: 1. operation in excess of any one of these parameters may result in permanent damage. NX7302BA-CC, nx7302ca-cc parameter definitions 0.24 p k 0 i f - p f dp o dp k i f - d i f (ma) (mw) p f p k 0 dp o dp l p f i m (ma) (mw) 0.02 p l 0.2 0 p f i m i m (ma) (mw) p f 0.2 t c = 25c t c = -40 to +85c kink : kink linearity : lin m tracking error : = | 10 log | [db] p f 0.2 linm = x 100 [%] |dp l | p l dp l = dpo max 0.02 < p k < 0.2 (mw) kink = x 100 [%] | dp k | p k dp k = dpo max p k 0.24 (mw)
NX7302BA-CC, nx7302ca-cc typical performance curves (t c = -40 to +85 c) forward current vs. forward voltage forward current, i f (ma) forward voltage, v f (v) 50 40 30 20 10 0 012 relative intensity wavelength, (nm) longitudinal mode 1300 1310 1320 case temperature, t c ( c) differential efficiency, d (w/a) temperature dependence of differential efficiency -60 -40 -20 0 20 40 60 80 100 0.03 0.02 0.01 0 case temperature, t c ( c) threshold current, i th (ma) operating current, i op (ma) operating current and threshold current vs. case temperature 100 50 30 20 10 5 3 2 1 -60 -40 -20 0 20 40 60 80 100 i th i op (@p f = 0.2 mw) optical output power from fiber vs. forward current optical output power from fiber, p f (mw) forward current, i f (ma) +25c +70c +85c t c = -40c 0 0 50 100 150 0.5 0.4 0.2 0.1 0.3 case temperature, t c ( c) temperature dependence of center w av elength center wavelength, c (nm) 1360 1340 1320 1300 1280 1260 -60 -40 -20 0 20 40 60 80 100
NX7302BA-CC, nx7302ca-cc outline dimensions (units in mm) 8.99 0.5 mm 35 2 mm fiber length: 500 50 mm optical fiber characteristics parameter units specification mode field diameter m 9.5 1 cladding diameter m 125 2 maximum cladding noncircularity % 2 maximum core/cladding concentricity % 1.6 outer diameter mm 0.9 0.1 cut-off wavelength nm 1100 to 1270 minimum fiber bending radius mm 30 fiber length mm 500 50 flammability ul 1581 vw-1 part number available connector flange type NX7302BA-CC with sc-upc connector flat mount flange nx7302ca-cc with sc-upc connector vertical mount flange ordering information pin connections 1 2 3 4 ?0.9 optical fiber (smf) length: 0.5 m with sc connector 8.00.3 ?7.00.2 4.00.2 2.2 3.2 ?2.2 ?0.450.05 18.31.0 25.51.0 1.20.2 20.01.0 12.70.2 17.00.2 p .c.d. = ?2.0 7.20.3 3.70.3 1.00.1 pd ld 4 1 3 2 case 6.0 pin connections NX7302BA-CC nx7302ca-cc optical output power from fiber, p f (mw) monitor current, i m (ma) optical output power from fiber vs. monitor current 1 0.5 0 0.5 1.0 1.5 0 typical performance curves (t c = -40 to +85 c) 16.0 0.5 ?0.450.05 ?0.9 optical fiber (smf) length: 0.5 m with sc connector ?7.00.2 8.00.3 0.50.2 6.0 15.0 26.11.0 5.1 20.0 1.0 2 1 3 4 ld pd case p.c.d. = ?2.0 4?r1.250.2 2??2.5 8.50.2 1 2 3 4 12.00.15 7.00.2 a business partner of nec com p ound semiconductor devices, ltd . 02/27/2003
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