1500 nm optical fiber communications ingaasp mqw-dfb laser diode coaxial module ndl7705p series features peak emission wavelength: p = 1550 nm optical output power: p f = 2.0 mw internal optical isolator ingaas monitor pin-pd wide operating temperature range: t c = -40 to +85 c /4 - phase-shifted dfb the ndl7705p series is a 1550 nm phase-shifted dfb (distributed feed-back) laser diode module with optical isolator. newly developed strained multiple quantum well (mqw) structure is adopted to achieve stable dynamic single longitudinal mode operation over a wide temperature range of -40 to +85 c. it is designed for all stm-1and stm-4 applications. description california eastern laboratories note: p f (mw) t c = 25 c (at p f (25 c) = 2 mw) t c = -40 to +85 c 2 0 p f i m i m p f 1. = 10 log 2 mw part number ndl7705p series package outline symbols parameters and conditions units min typ max v f forward voltage, i f = 30 ma v 0.9 1.3 i th threshold current, t c = 25 ? cma 15 t c = 85 ? c3550 d differential efficiency from fiber, t c = 25 ? c w/a 0.070 0.120 t c = 85 ? c 0.035 0.075 ? d temperature dependence of differential efficiency db -3 -2 from fiber, ? d = 10 log p peak emission wavelength, p f = 1 mw nm 1530 1550 1570 smsr side mode suppression ratio, p f = 1 mw db 30 t r rise time, i b = 0.9 x i th ns 0.5 t f fall time, i b = 0.9 x i th ns 0.5 i m monitor current, v r = 5 v, p f = 2 mw a 300 2500 i d monitor dark current, v r = 5 v, t c = 25 c na 0.1 5 1 tracking error, i m = const.(p f = 2 mw, t c = 25 ? c) db 1.0 r in relative intensity noise, ref = -14 db, p f = 1 mw db/hz -140 -130 electro-optical characteristics (t c = -40 to +85 c, unless otherwise specified) d (t c = 85 c) d (t c = 25 c)
foward current vs. forward voltage absolute maximum ratings 1 (t c = 25 c, unless otherwise specified) symbols parameters units ratings i f forward current of ld ma i th +50 p f optical output power mw 5.0 v r reverse voltage of ld v 2.0 i f forward current of pd ma 2.0 v r reverse voltage of pd v 15 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 optical output power vs. forward current threshold current, i th (ma) operation current, i op (ma) optical output power , p f (mw) forward current, i f (ma) typical performance curves (t c = 25 c, unless otherwise specified) note: 1. operation in excess of any one of these parameters may result in permanent damage. ndl7705p series t c = -40 c 25 c 85 c 4.0 100 80 60 40 20 0 1.0 2.0 3.0 4.0 2.0 1.6 1.2 0.8 0.4 0.0 1.0 2.0 3.0 +85 c +25 c t c = -40 c i th i op at p f = 2 mw 100 10 1 -60 100 80 60 40 20 0 -20 -40 50 2.5 2.0 1.5 1.0 0.5 0 10 20 30 40 optical output power vs. monitor current optical output power , p f (mw) monitor current, i m (ma) case temperature, t c ( c) forward voltage, v f (v) operating current and threshold current vs. case temperature forward current, i f (ma)
ndl7705p series longitudinal mode from fiber relative intensity, (db) time base (500 ps/div.) relative intensity, (db) typical performance curves (t c = 25 c, unless otherwise specified) eye diagram 10 1560.4 1550.4 1540.4 -70 -60 -50 -40 -30 -20 -10 0 622 mb/s-nrz, ref = -14db, 2 v p-p (6 db att), i b = i th x 0.9 temperature dependence of differential efficiency from fiber peak emission wavelength, p (nm) differential efficiency from fiber, d (w/a) wavelength, (nm) temperature dependence of peak emission wavelength 0.18 0.12 0.06 0.00 -60 100 80 60 40 20 0 -20 -40 1560 1550 1540 -60 100 80 60 40 20 0 -20 -40 1555 1545 error rate characteristics bit error rate back to back after 200 km t c = -40 c, ref = -14 db, 622 mbps-nrz, 2 v p-p , i b = i th x 0.9 10 -6 -34 -35 -36 -37 -38 -39 -40 10 -12 10 -11 10 -10 10 -9 10 -8 10 -7 -33 back to back after 200 km t c = 25 c, ref = -14 db, 622 mbps-nrz, 2 v p-p , i b = i th x 0.9 10 -6 -34 -35 -36 -37 -38 -39 -40 10 -12 10 -11 10 -10 10 -9 10 -8 10 -7 -33 back to back after 200 km t c = 85 c, ref = -14 db, 622 mbps-nrz, 2 v p-p , i b = i th x 0.9 10 -6 -34 -35 -36 -37 -38 -39 -40 10 -12 10 -11 10 -10 10 -9 10 -8 10 -7 -33 case temperature, t c ( c) case temperature, t c ( c) average received power, p (dbm)
ndl7705p series ndl7705p1 ndl7705p ndl7705p2 outline dimensions (units in mm) part number available connector description ndl7705p without connector ndl7705pc with fc-pc connector ndl7705pd with sc-pc connector ndl7705p1 without connector ndl7705p1c with fc-pc connector ndl7705p1d with sc-pc connector ndl7705p2 without connector ndl7705p2c with fc-pc connector NDL7705P2D with sc-pc connector ordering information 3.4 0.8 optical fiber sm-9/125 length: 1 m 7 0.2 3.2 0.25 0.45 0.05 0.9 6 0.1 pd case ld p.c.d. = 2 4.6 0.8 27.8 1.0 20 1.0 4 1 3 2 7 0.2 43 12 15 8.2 3.7 0.3 2.0 0.2 4.0 0.2 7 0.2 optical fiber sm-9/125 length: 1 m 15 8.2 3.2 0.25 2 2.2 0.45 0.05 0.9 6 0.1 pd case 1.0 0.1 ld p.c.d. = 2 27.8 1.0 20 1.0 12.7 0.2 17.0 0.2 4 1 3 2 43 12 7.2 0.3 7 0.2 0.5 0.2 optical fiber sm-9/125 length: 1 m 15 8.2 0.3 3.2 0.25 4- 0.45 0.05 0.9 pd case 16 ld p.c.d. = 2 2- 2.5 28.1 1.0 19.5 1.0 2.5 1.0 4 1 3 2 12 0.15 16.0 7 0.2 4 3 1 2 0.3 flat mount flange vertical flange no flange exclusive north american agent for rf, microwave & optoelectronic semiconductors california eastern laboratories ? headquarters ? 4590 patrick henry drive ? santa clara, ca 95054-1817 ? (408) 988-3500 ? telex 34-6393 ? fax (408) 988-0279 24-hour fax-on-demand: 800-390-3232 (u.s. and canada only) ? internet: http://www.cel.com 03/15/2000 data subject to change without notice
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