description this laser module contains an alcatel slmqw dfb laser and is designed for use with external modulation optimized for high power wavelength division multiplexed (wdm) systems. the module incorporates a polarization maintaining fiber pigtail, thermoelectric cooler, precision thermistor, and optical isolator for stable operation under all conditions. features ? up to 20 mw output power ? wavelength selection according to itu-t g.692 (l-band) ? 50 ghz spacing available ? optimized for use with linbo3 external modulator ? polarization maintaining fiber pigtail ? ingaasp distributed feedback slmqw (dfb) laser ? integral optical isolator ? internal tec and monitor photodiode ? industry-standard hermetic 14-pin butterfly package applications ? ultra long haul dwdm synchronous digital transmission systems ? wdm submarine terminal digital transmission systems ? instrumentation. optical characteristics parameter symb. conditions min typical max units threshold current i th 40 ma output power p f twave = 15 to 30 c twave = 15 to 25 c 10 20 mw mw forward voltage v f pf, pin 3 & 11 2.5 v laser forward current i f 10 mw, pin 3 & 11 20 mw, pin 3 & 11 120 210 ma ma emission wavelength m see table 1 ? (emitted-target) wavelength ? e @tchip[2] - 0.1 +0.1 nm laser chip temperature range for tunability t @10mw [2] @20mw [2] 15 15 30 25 c c spectral width ? cw, pf, fwhm 5 mhz side mode suppression ratio smsr pf 35 db relative intensity noise rin 10mhz to 10 ghz @ pf -140 db/hz photodiode dark current id v = -5 v 100 na wavelength drift vs tcase ? / ? tc 0.5 pm/c thermistor resistance r th 9.7 10.3 k = ? thermistor temperature coefficient r t - 3 - 5 %/k tec current i t [1] 1.3 a tec voltage v t [1] 2.5 v te/tm fiber extinction ratio of pigtail er 20 db note : all limits start of life (except it, vt), tsubmount = 25 c, tcase = 25 c, pf = 20 mw, monitor bias ? 5 v, unless other wise stated [1] tcase = 70 c, tsubmount = 20 c, p = 20 mw [2] tchip = t . t is chip temperature required to meet target wavelength (see table 1) absolute maximum ratings parameters min max unit operating case temperature -10 70 c storage temperature -40 85 c laser forward current 350 ma laser reverse voltage 2v photodiode forward current 1 ma photodiode reverse voltage 20 v tec voltage 2.8 v tec current 1.4 a lead soldering time (at 260c) 10 s packing mounting screw torque 0.2 nm [1] human body model. stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are absolute stress ratings only. a lcatel 1905 lmi up to 20 mw wdm l-band version for external modulation cw 1.55 m laser module with optical isolator
mechanical details pin out n description n description 1 thermistor 8 case ground 2 thermistor 9 case ground 3 laser dc bias (-) 10 not connected 4 photodetector anode (-) 11 rf common (+) 5 photodetector cathode (+) 12 rf input (-) 6 tec (+) 13 not connected 7tec (-) pd tec ld 20 ? 7654321 ts 8 9 1011121314 200 nh 10 k ? pigtail
ordering information alcatel 1905 lmi nominal power connector type part number [1] 10 mw 10 mw 20 mw 20 mw fc/pc or fc/apc sc/pc fc/pc or fc/apc sc/pc 3cn 00386 ## 3cn 00461## 3cn 00410 ## 3cn 00462 ## ## defines the wavelength and the connector according to table 1. connector connector thz fc/pc sc/pc fc/apc thz fc/pc sc/pc fc/apc 1570,00 190,95 fv rv 1583,69 189,30 hf tf 1570,41 190,90 fw rw 1584,10 189,25 hg tg 1570,82 190,85 fx rx 1584,52 189,20 hh th 1571,24 190,80 fy ry 1584,94 189,15 hj tj 1571,65 190,75 fz rz 1585,36 189,10 hk tk 1572,06 190,70 ga sa 1585,78 189,05 hl tl 1572,47 190,65 gb sb 1586,20 189,00 hm tm 1572,88 190,60 gc sc 1586,62 188,95 hn tn 1573,30 190,55 gd sd 1587,04 188,90 hp tp 1573,71 190,50 ge se 1587,46 188,85 hr tr 1574,12 190,45 gf sf 1587,88 188,80 hs ts 1574,54 190,40 gg sg 1588,30 188,75 ht tt 1574,95 190,35 gh sh 1588,72 188,70 hu tu 1575,36 190,30 gj sj 1589,14 188,65 hv tv 1575,78 190,25 gk sk 1589,56 188,60 hw tw 1576,19 190,20 gl sl 1589,98 188,55 hx tx 1576,61 190,15 gm sm 1590,41 188,50 hy ty 1577,02 190,10 gn sn 1590,83 188,45 hz tz 1577,44 190,05 gp sp 1591,25 188,40 ja ua 1577,85 190,00 gr sr 1591,67 188,35 jb ub 1578,27 189,95 gs ss 1592,10 188,30 jc uc 1578,68 189,90 gt st 1592,52 188,25 jd ud 1579,10 189,85 gu su 1592,94 188,20 je ue 1579,51 189,80 gv sv 1593,37 188,15 jf uf 1579,93 189,75 gw sw 1593,79 188,10 jg ug 1580,35 189,70 gx sx 1594,21 188,05 jh uh 1580,76 189,65 gy sy 1594,64 188,00 jj uj 1581,18 189,60 gz sz 1595,06 187,95 jk uk 1581,60 189,55 ha ta 1595,49 187,90 jl ul 1582,01 189,50 hb tb 1595,91 187,85 jm um 1582,43 189,45 hc tc 1596,33 187,80 jn un 1582,85 189,40 hd td 1596,76 187,75 jp up 1583,27 189,35 he te 1597,19 187,70 jr ur
connector thz fc/pc sc/pc fc/apc 1597,61 187,65 js us 1598,04 187,60 jt ut 1598,46 187,55 ju uu 1598,89 187,50 jv uv 1599,32 187,45 jw uw 1599,74 187,40 jx ux 1600,17 187,35 jy uy 1600,60 187,30 jz uz 1601,02 187,25 ka va 1601,45 187,20 kb vb 1601,88 187,15 kc vc 1602,31 187,10 kd vd 1602,74 187,05 ke ve 1603,16 187,00 kf vf 1603,59 186,95 kg vg 1604,02 186,90 kh vh 1604,45 186,85 kj vj 1604,88 186,80 kk vk 1605,31 186,75 kl vl 1605,74 186,70 km vm 1606,17 186,65 kn vn 1606,60 186,60 kp vp 1607,03 186,55 kr vr 1607,46 186,50 ks vs 1607,89 186,45 kt vt 1608,32 186,40 ku vu 1608,76 186,35 kv vv 1609,19 186,30 kw vw 1609,62 186,25 kx vx 1610,05 186,20 ky vy table 1, all wavelengths referenced to vaccum @ tsubmount standards itu-t g.652 optical fiber iec 68-2 and mil std 883 environment laser radiation avoid exposure to beam class 3 b laser product attention observe precautions for handling electrostatic discharge sensitive devices october 00 copyright ? 2000 alcatel optronics customized versions are available for large quantities. performance figures contained in this document must be specifically confirmed in writing by alcatel optronics before they become applicable to any particular order or contract. alcatel optronics reserves the right to make changes to the products or information contained herein without notice. europe route de villejust f-91625 nozay cedex tel : (+33) 1 64 49 49 10 fax : (+33) 1 64 49 49 61 usa 12030 sunrise valley drive reston - va 2 2091 tel : (+1) 703 715 3921 fax : (+1) 703 860 1183 canada 45, de villebois, suite 200 gatineau (pq) canada, j8t 8j7 tel : (+1) 819 243 3755 fax : (+1) 819 243 3354 japan yebisu garden place tower po box 5024 20-3, ebisu 4 - chome shibuya - ku tokyo 150 - 6028 tel : (+81) 3 5424 85 65 fax : (+81) 3 5424 85 81
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