data sheet | june 14, 2006 for more information on this and other products: contact sales at ortel 626-293-3400, or visit www.emcore.com. applications metro and long haul dwdm, 100 ghz spaced networks sonet/sdh oc-48/stm16 ring and meshed applications drop-side of dwdm long-haul transport equipment catv networks optical test and instrumentation microwave photonics sensors features itu wavelengths across c- band 100 ghz channel spacing sonet/sdh oc-48/stm16 ring and meshed applications low dispersion provides up to 200-km, 400-km, and 650-km reach in smf-28 fiber low transient chirp provides unique narrow dynamic spectrum excellent long-term wavelength stability eliminates the need for a wavelength locker ec-48 2.5 gbit/s external cavity directly modulated lasers 200 km, 400 km, and 650 km reach the ec48 series directly modulated external cavity laser is a cost effective solution for 2.5 gbits/s digital transmission up to 650 km in smf-28 fiber. the laser is fabricated in a 14-pin hermetically sealed butterfly package that incorporates a bias tee circuit, an integrated thermoelectric cooler (tec), a thermistor, and a back facet monitor photodiode. the ec48 provides substantially lower dispersion penalty and lower chirp than a directly modulated dfb. the wavelength stability is assured by design, eliminating the need for wavelength lockers and complex feedback control circuits. performance highlights min typical max units optical output power 3 - - mw case operating temperature range -15 - +75 c center wavelength ( 100 ghz itu grid ) 1527 - 1570 nm spectral width ( - 20 db ) - - .10 nm optical isolation 30 - - db side mode suppression ratio cw dynamic 35 30 - - - - db db high frequency cutoff 3.5 - - ghz extinction ratio eol bol 8.5 9.5 - 10 - - db db see following pages for complete specifications and conditions.
data sheet | june 14, 2006 ortel, a division of emcore ec-48 2.5 gbit/s external cavity directly modulated lasers absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are absolute stress ratings only. functional operation of the devic e is not implied at these or any other conditions in excess of those given in the operational sections of t he data sheet. exposure to absolute maximum ratings for extended periods can adversely affect device reliability. parameters symbol condition/notes min max unit storage temperature t stg non operating -40 85 o c operating case temperature t c continuous -15 75 o c forward current i lf cw 100 ma reverse voltage v lr continuous 2 v photodiode forward current i df continuous 2 ma photodiode reverse voltage v dr continuous 10 v tec current i tec (2) 1.8 a tec voltage v tec continuous 3.5/3.3* v fiber bend radius r 35 mm tensile strength fiber to case f 5 n lead soldering time t sold < 260 c (3) 10 sec package mounting screw torque (4) 0.12 m* n operating humidity: non-condensing x op 5 95 % storage humidity: non-condensing x op 5 95 % (1) absolute maximum data are limited to system design only; proper device performance is not guaranteed over rating listed abo ve. operation beyond these maximum conditions may degrade de vice performance, lead to device failure, shorter lifetime, and will invalidate t he device warranty (2) tec current should not exceed 2.0 a during turn on, and ca se temperature under any conditi ons should not change faster than 10 o c / min (3) soldering iron only; no reflow or dip soldering allowed. (4) see mounting recommendations below * 400-km
3 data sheet | june 14, 2006 ortel, a division of emcore ec-48 2.5 gbit/s external cavity directly modulated lasers electrical/optical characteristics parameters symbo l conditions/notes min typ max unit peak optical output power p peak 3 _ _ mw slope efficiency cw output power 3 mw 0.064 _ _ mw/m a threshold current i th _ 15 25 ma forward voltage v f cw output power 3 mw _ 1.3 1.8 v monitor current i mon cw output power 3 mw 0.04 _ 0.4 ma monitor photodiode tracking error te -10 < t c < +70 oc _ _ 0.5 db tec set temperature t s specified for every laser 17 35 oc center wavelength (100 ghz itu grid) c tec temperature at the recommended value ts 1527 _ 1570 nm spectral width (at -20db) ? 2.5 gbits/s, er =10 db; (1) - _ 0.10 nm wavelength drift with case (-10 to 70 oc) temperature ?? c tec temperature at t s _ _ 30 pm wavelength offset from dwdm itu grid ? offset ? t -10 < t c < +70 oc, <20 years at the rated power 0.08 nm wavelength temperature coefficient ?/ t ts 1 oc 15 30 pm/oc wavelength current coefficient ?/? 1.5 2 pm/ma optical isolation -10 < t c < +70 oc 30 db relative intensity noise rin cw, output power 3mw - 135 db/hz side mode suppression ratio smsr cw cw, pout >1 mw 35 db dynamic 2.5 gbits/s nrz, er =9.5 db 30 db high frequency cutoff s 21 at -3 db 3.5 ghz rise/fall time (20 - 80%) t r , t f 2.5 gbits/s; prbs2 23 -1; nrz; er 9.5; 150 ps input impedance z in 22 25 28 extinction ratio er -10 < t c < +70 oc; (2) eol 8.5 db bol 9.5 10 db power penalty at osnr = 29db (2), (3), (4) 2 db (1): time-averaged spectrum measured with an do osa, 10 pm resolution, 1 nm span. (2): measured with 100 ghz dwdm mux/demux or comparable optical filters. (3): 650km smf-28 fiber (dispersion = 11700 ps/nm); 2.5 gbits/s; prbs = 2 23 -1, ber= 1x10 -11 ; er 9.5 db; (4): power penalty = [total power penalty at the end of the 650k m link at osnr = 29db] ? [baseline penalty measured back-to-back a t osnr = 29db]
4 data sheet | june 14, 2006 ortel, a division of emcore ec-48 2.5 gbit/s external cavity directly modulated lasers thermal specifications parameters symbol conditions/notes min typ max unit tec current i tec at t s , t c = 70 o c _ - 1.5 a tec voltage v tec at t s , t c = 70 o c _ _ 3.0 v tec capacity t t c = 70 o c 55 _ _ o c thermistor resistance r th t l = 25 o c 9.5 10 10.5 k ? thermistor beta constant (1) 3891 k (1) : additional information on resistance vs. te mperature multipliers available on request. fiber pigtail specifications parameters conditions/notes min typ max unit fiber type single mode fiber corning smf-28 tm mode field diameter 9 10.4 11 m cladding diameter 123.5 125 126.5 m outer diameter of buffer - 900 - m length of pigtail 1 - - m optical connector (see ordering information)
5 data sheet | june 14, 2006 ortel, a division of emcore ec-48 2.5 gbit/s external cavity directly modulated lasers outline drawing pin assignments pin no functions 1. thermistor 2. thermistor 3. laser dc bias cathode (-) 4. photodetector anode (-) 5. photodetector cathode (+) 6. tec (+) 7. tec (-) 8. not connected 9. case ground 10. case ground 11. laser anode (+) 12. laser rf cathode (-) 13. laser anode (+) 14. case ground
6 data sheet | june 14, 2006 ortel, a division of emcore ec-48 2.5 gbit/s external cavity directly modulated lasers itu grid channel numbering channel wavelength (nm) channel wavelength (nm) channel wavelength (nm) 62 1527.99 46 1540.56 30 1553.33 61 1528.77 45 1541.35 29 1554.13 60 1529.55 44 1542.14 28 1554.94 59 1530.33 43 1542.94 27 1555.75 58 1531.12 42 1543.73 26 1556.56 57 1531.90 41 1544.53 25 1557.36 56 1532.68 40 1545.32 24 1558.17 55 1533.47 39 1546.12 23 1558.98 54 1534.25 38 1546.92 22 1559.79 53 1535.04 37 1547.72 21 1560.61 52 1535.82 36 1548.51 20 1561.42 51 1536.61 35 1549.32 19 1562.23 50 1537.40 34 1550.12 18 1563.05 49 1538.19 33 1550.92 17 1563.86 48 1538.98 32 1551.72 16 1564.68 47 1539.77 31 1552.52 15 1565.50 reliability/quality designed to meet qualification requirements of telcordia (bellcore) gr468-core and operating reliability <500 fits (assumes laser die submount held at <40 o c by internal thermoelectric cooler, mean forward current of 50ma, and end of life limits based on 10ma increase in ith and 25% change in laser efficiency). handling and mounting 1. the laser should be mounted on a heat sink at least 13 x 35 mm in size with surface finish better than 1 m and flatness better than 25 m. it is recommended that the laser be mechanically mounted to the heat sink using m2-3 mm (#2-56) screws. apply torque 0.1-0.11 m*n (0.8-1 lb*in). it is also recommended to use thermally conductive grease between the laser package and heat sink. 2. the fiber pigtail must not be subject to a bend radius below 35mm.the fiber is unable to withstand temperatures in excess of 120 oc without degradation. avoid high temperature contact during soldering
7 data sheet | june 14, 2006 ortel, a division of emcore ec-48 2.5 gbit/s external cavity directly modulated lasers laser safety class iiib laser product this product meets the appropriate standard in title 21 of the code of federal regulations (cfr). fda/cdrh class iiib laser product. this device has been classifi ed with the fda/cdrh under accession number 0220309. single-mode fiber pigtail with sc/apc connectors (standard) wavelength = 1.5 m. maximum power = 100 mw. because of size constraints, laser safety labeling (incl uding an fda class iiib label) is not affixed to the module, but attached to the outside of the shipping carton. product is not shipped with power supply. caution: use of controls, adjustments and procedures other than those specified herein may result in hazardous laser radiation exposure.
8 data sheet | june 14, 2006 ortel, a division of emcore ec-48 2.5 gbit/s external cavity directly modulated lasers ordering code definitions ec48-100- xx-03-xx-xxx example ec48-100-43-03-fa-400: ec48, itu channel 43, 1542.94 nm, 3 mw minimum output power, fc/apc, 400 kms information contained herein is deemed to be re liable and accurate as of issue date. em core reserves the right to change the de sign or specifications of the product at any time without notice. ortel, the ortel logo, emcore, and the emcore logo are trademarks of emcore corporation . ds.ec48 ? copyright 2003. emcore corporation ortel, a division of emcore 2015 west chestnut street a lhambra, california 91803-1542 tel: 626-293-3400 fax: 626-293-3428 www.emcore.com family name 14- pin ecl, directly modulated upto 2.7 gbps wavelength yy = 20: itu channel 20, 1561.42 nm yy = 21: itu channel 21, 1560.61 nm ? yy = 59: itu channel 59, 1530.33 nm yy = 60: itu channel 60, 1529.55 nm itu spacing 100 ghz connector fa: fc/apc sa: sc/apc su: sc/upc la : lc/apc lu : lc/upc fu : fc/upc distance 200 km 400 km 650 km optical output power minimum peak modulated power in mw
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