data sheet, rev. 1 september 2001 e2500-type 2.5 gbits/s electroabsorption modulated isolated laser module (em-ilm) for ultralong-reach applications the e2500 em-ilm, the newest generation of the award- winning 266-type em-ilm, features an integrated modulator and laser chip, and provides a compact, cost-effective solu- tion for extended-reach transmissions. features integrated electroabsorptive modulator 1.5 m wavelength characterized for 2.5 gbits/s operation very low dispersion penalty over 600 km low modulation voltage temperature stabilized wavelengths selectable to itu-t standards ultrastable wavelength aging performance for dwdm systems applications sonet/sdh extended-reach applications high-capacity dwdm system applications high-speed data communications digitized video description the e2500-type em-ilm is a 1.5 m laser with an integrated electroabsorptive modulator packaged in an industry-standard, 14-pin butterfly package. the device has been designed to be used in 2.5 gbits/s extended-reach applications where the distances between regenerators is in the range of 150 km? 1000 km. to boost the transmitter power high enough to reach the receiver, the device typically is coupled with an erbium-doped fiber amplifier (edfa) such as agere systems inc.?s 1724 edfa. the standard product is specified for use up to 360 km (e2505 series) and 600 km (e2502 series). the e2500 em-ilm can replace external modulators in many applications. the nominal input impedance for the modulator is 50 ? . by integrating the modulator with the laser chip, the device offers a compact, cost-effective solution for extended-reach transmission applications. it can also be specified for wdm applications where wavelength selection is required. agere is providing devices compatible with the itu-t wavelength standards.
2 agere systems inc. data sheet, rev. 1 september 2001 isolated laser module (em-ilm) e2500-type 2.5 gbits/s electroabsorption modulated description (continued) the package also contains a thermoelectric cooler, thermistor, back-facet monitor, and an optical isolator. this device exhibits excellent wavelength stability, supporting operation at 100 gbits/s channel spacing, assuming an end-of-life condition of < 100 pm over 20 years for wavelength aging, with very low fit rates. wavelength stabilization schemes are not required in dwdm systems of this type, using agere?s e2500- type em-ilm. the e2500-type em-ilm is qualified for dwdm appli- cations to bellcore ta-tsy-000468. module characteristics 1-891a (f) figure 1. e2500 em-ilm schematic pin information table 1. pin assignments package type 14-pin butterfly with internal isolator fiber standard single mode connector st ? rf input 50 ? nominal bit rate 2.5 gbits/s case or package grounds 10 k @ 25 c ? isolator tec ( ? )(+) ( ? ) (+) (+) ( ? ) (+) 1 2 3 4 5 6 7 14 13 12 11 10 9 8 nominal ? impedance 50 pin number description 1thermistor 2thermistor 3 laser anode 4 monitor anode 5 monitor cathode 6tec (+) 7tec (?) 8 case ground 9 case ground 10 case ground 11 laser modulator ground 12 modulator anode (?)/50 ? rf input 13 laser/modulator ground 14 case ground
data sheet, rev. 1 september 2001 isolated laser module (em-ilm) e2500-type 2.5 gbits/s electroabsorption modulated agere systems inc. 3 absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are abso- lute stress ratings only. functional operation of the device is not implied at these or any other conditions in excess of those given in the operations section of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect device reliability. characteristics parameter conditions limit unit laser diode reverse voltage cw 2 v laser diode forward current cw 150 ma optical output power cw 10 mw modulator reverse voltage ? 5 v modulator forward voltage ? 1 v monitor diode reverse voltage ? 10 v monitor diode forward current ? 1 ma storage temperature range ? ? 40 to +85 c operating temperature range ? 0 to 70 c table 2. optical and electrical specifications parameter symbol conditions min max unit laser: laser t op (temperature of laser submount) = 15 c to 35 c, except where noted. threshold current (bol) i th t laser chip = t op 535 ma forward voltage v f i f = i op @ t op ?2.0 v operating current i op t laser chip = t op 50 100 ma threshold power p th t laser chip = t op i f = i th , v m = 0 v ?80 w fiber output power (peak) p pk t laser chip = t op v m = 0 v, i f = i op 1? dbm peak wavelength (wavelength can be specified to the itu-t wavelength chan- nels) 0 v m = 0 v t laser chip = t op , i f = i op 1530 1563 nm side-mode suppression ratio smsr v m = 0 v, i f = i op ,t op 30 ? db time resolved spectroscopy (chirp), e2505 series trs p-p 2.5 gbits/s v low = ?1.5 v to ?3.0 v v high = 0 v if = i op @ t op ?0.25 ? time resolved spectroscopy (chirp), e2502 series trs p-p 2.5 gbits/s v low = ?1.5 v to ?3.0 v, v high = ?0.3 v i f = i op @ t op ?0.15 ? dispersion penalty dp 2.5 gbits/s 360 km (e2505) 600 km (e2502) v low = ?1.5 v to ?3.0 v v high = 0 v (e2505), ?0.3 v (e2502) i f = i op @ t op ?2.0db
data sheet, rev. 1 september 2001 isolated laser module (em-ilm) e2500-type 2.5 gbits/s electroabsorption modulated 4 agere systems inc. characteristics (continued) * operation at a dt of 70 c ? tset is guaranteed, where tset is the laser temperature required to achieve the required itu wave length, over life, in a dwdm system (tset range is 15 c to 35 c). in a non-wdm application, tset is 25 c. modulator extinction ratio e rrf v m = 0 v to ?3.0 v, 2.5 gbits/s 10 ? db rf return loss (0 ghz to 2 ghz) s 11 v m = ?v pp /2 i f = i op 10 ? db rf return loss (2 ghz to 3 ghz) s 11 v m = ?v pp /2 i f = i op 7?db rf return loss (3 ghz to 5 ghz) s 11 v m = ?v pp /2 i f = i op 3?db ?3 db bandwidth bw v m = ?v pp /2 i f = i op 3.5 ? ghz modulator current @ v m = 0 v, i f = 50 ma ???15ma rise/fall time (20% to 80%) t r / t f ??125ps monitor diode monitor current i bd t laser chip = t op v bd = 5 v, i f = i op 40 1100 a dark current i d t laser chip = t op , v bd = ?5 v ?0.1 a capacitance c v bd = 5 v, f = 1 mhz ?25 pf thermistor resistance r therm t = 25 c 9.5 10.5 k ? thermistor current i tc ?10100 a thermistor b constant b ? 3700 4100 ? thermoelectric cooler tec current i tec t laser chip = 15 c t case = 70 c ? 1.3 a tec voltage v tec t laser chip = 15 c t case = 70 c ? 2.6 v tec power p tec t laser chip = 15 c t case = 70 c ? 3.0 w tec capacity ? t t case = 70 c *? c laser module optical isolation ? t case = 0 c to 65 c 30 ? db table 2. optical and electrical specifications (continued) parameter symbol conditions min max unit
data sheet, rev. 1 september 2001 isolated laser module (em-ilm) e2500-type 2.5 gbits/s electroabsorption modulated agere systems inc. 5 characteristics (continued) 1-500(c).d figure 2. typical eye pattern at 2.5 gbits/s 184.5 mv i = 50 v = ?.04 + 2.08 pp p= ?.5 dbm ?5.5 mv 20 mv /div 91.65 ns 100 ps/div 92.65 ns
data sheet, rev. 1 september 2001 isolated laser module (em-ilm) e2500-type 2.5 gbits/s electroabsorption modulated 6 agere systems inc. characteristics (continued) 1-930(c).c figure 3. ber vs. optical power (typical) 0 km 107 km 122 km 202 km 337 km 640 km 37 36 35 34 33 32 31 30 29 28 38 t = 25 pc i bias (laser) = 80 ma v bias (mod) = 1.0 vdc v pp (mod) = 2.0 v p out = 1.9 dbm (pulsed) ext. ratio (rf) = 11.4 db test conditions: 10 12 10 11 10 10 10 9 10 8 10 7 10 6 10 5 optical power (dbm) ber
data sheet, rev. 1 september 2001 isolated laser module (em-ilm) e2500-type 2.5 gbits/s electroabsorption modulated agere systems inc. 7 outline diagram 1-520.h (f) 0.180 (4.56) heat sink 0.215 (5.45) 0.056 (1.42) 0.030 (0.75) 59.06 (1500.00) min 0.10 (2.5) 0.260 (6.60) 0.215 (5.47) ref 0.036 (0.91) pin 1 0.078 (1.98) 0.100 (2.54) typ 0.105 (2.67) dia typ (4) places 0.020 (0.51) typ 0.500 (12.70) min strain relief pin 14 trademark, code, laser serial number, and date code in approx. area shown 0.200 (5.08) ~ 1.025 (26.04) 0.10 0.002 (2.54 0.051) 0.213 (5.40) typ 0.500 (12.70) 0.350 (8.89) 0.605 (15.37) max 2.03 (51.6) 0.863 (21.91) 0.575 (14.61) 0.820 (20.83) 0.700 (17.78) 0.365 (9.27) max 1.180 (29.97)
data sheet, rev. 1 september 2001 isolated laser module (em-ilm) e2500-type 2.5 gbits/s electroabsorption modulated 8 agere systems inc. ordering information table 3. ordering information parameter device description itu-t wave- length (nm) frequency (thz) e2505 series 360 km, standard fiber e2505 series 600 km, standard fiber code comcode code comcode 1530.37 195.9 e2505h59 108319146 e2502h59 108319112 1531.15 195.8 e2505h58 108319138 e2502h58 108319104 1531.90 195.7 e2505h57 108319120 e2502h57 108319096 1532.68 195.6 e2505h56 108031683 e2502h56 108030990 1533.46 195.5 e2505h55 108031675 e2502h55 108030982 1534.25 195.4 e2505h54 108031667 e2502h54 108030974 1535.04 195.3 e2505h53 108031659 e2502h53 108030966 1535.82 195.2 e2505h52 108031642 e2502h52 108030958 1536.61 195.1 e2505h51 108031634 e2502h51 108030941 1537.4 195.0 e2505h50 108031626 e2502h50 108031006 1538.19 194.9 e2505h49 108031618 e2502h49 108030925 1538.98 194.8 e2505h48 108031600 e2502h48 108030917 1539.77 194.7 e2505h47 108031592 e2502h47 108030909 1540.56 194.6 e2505h46 108031584 e2502h46 108030891 1541.35 194.5 e2505h45 108031576 e2502h45 108030883 1542.14 194.4 e2505h44 108031568 e2502h44 108030875 1542.94 194.3 e2505h43 108031550 e2502h43 108030867 1543.73 194.2 e2505h42 108031543 e2502h42 108030859 1544.53 194.1 e2505h41 108031535 e2502h41 108030842 1545.32 194.0 e2505h40 108031527 e2502h40 108030933 1546.12 193.9 e2505h39 108031519 e2502h39 108030826 1546.92 193.8 e2505h38 108031501 e2502h38 108030818 1547.72 193.7 e2505h37 108031196 e2502h37 108030800 1548.51 193.6 e2505h36 108031188 e2502h36 108030792 1549.31 193.5 e2505h35 108031170 e2502h35 108030784 1550.12 193.4 e2505h34 108031162 e2502h34 108030776 1550.92 193.3 e2505h33 108031154 e2502h33 108030768 1551.72 193.2 e2505h32 108031147 e2502h32 108030750 1552.52 193.1 e2505h31 108031139 e2502h31 108030743 1553.33 193.0 e2505h30 108031493 e2502h30 108030834 1554.13 192.9 e2505h29 108031113 e2502h29 108030727 1554.94 192.8 e2505h28 108031105 e2502h28 108030719 1555.75 192.7 e2505h27 108031097 e2502h27 108030701 1556.55 192.6 e2505h26 108031089 e2502h26 108030693 1557.36 192.5 e2505h25 108031071 e2502h25 108030685 1558.17 192.4 e2505h24 108031063 e2502h24 108030677 1558.98 192.3 e2505h23 108031055 e2502h23 108030669 1559.79 192.2 e2505h22 108031048 e2502h22 108030651 1560.61 192.1 e2505h21 108031030 e2502h21 108030644 1561.42 192.0 e2505h20 108031121 e2502h20 108030735 1562.23 191.9 e2505h19 108031022 E2502H19 108030636 1530 to 1565 ? e2505h 108031691 e2502h 108031014
data sheet, rev. 1 september 2001 isolated laser module (em-ilm) e2500-type 2.5 gbits/s electroabsorption modulated agere systems inc. 9 related product information table 4. related product information description part number document number 1.5 mm edfa 1724-type ds98-412lwp 2.5 gbits/s receiver 1319-type ds97-106lwp 1.5 mm digital dfb laser d2500-type ds97-114lwp 1.3 mm digital dfb laser d2300-type ds97-122lwp 2.5 gbits/s receiver with clock recovery 1320-type ds97-113lwp
data sheet, rev. 1 september 2001 isolated laser module (em-ilm) e2500-type 2.5 gbits/s electroabsorption agere systems inc. reserves the right to make changes to the product(s) or information contained herein without notice. no liab ility is assumed as a result of their use or application. copyright ? 2001 agere systems inc. all rights reserved september 2001 ds01-281opto-1 (replaces ds01-281opto) for additional information, contact your agere systems account manager or the following: internet: http://www.agere.com e-mail: docmaster@agere.com n. america: agere systems inc., 555 union boulevard, room 30l-15p-ba, allentown, pa 18109-3286 1-800-372-2447 , fax 610-712-4106 (in canada: 1-800-553-2448 , fax 610-712-4106) asia: agere systems hong kong ltd., suites 3201 & 3210-12, 32/f, tower 2, the gateway, harbour city, kowloon tel. (852) 3129-2000 , fax (852) 3129-2020 china: (86) 21-5047-1212 (shanghai), (86) 10-6522-5566 (beijing), (86) 755-695-7224 (shenzhen) japan: (81) 3-5421-1600 (tokyo), korea: (82) 2-767-1850 (seoul), singapore: (65) 778-8833 , taiwan: (886) 2-2725-5858 (taipei) europe: tel. (44) 7000 624624 , fax (44) 1344 488 045 laser safety information class iiib laser product this product complies with 21 cfr 1040.10 and 1040.11. single-mode connector. wavelength = 1.5 m. maximum power = 10 mw. because of size constraints, laser safety labeling 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. danger invisible laser radiation is emitted from the end of fiber or connector avoid direct exposure to beam do not view beam directly with optical instruments invisible laser radiation emitted from end of fiber or connector avoid exposure to beam class 3b laser product iec-60825m 1993 max. output: 10 mw wavelength: 1.5 m
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