preliminary datasheet | october 3, 2007 for more information on this and other products: contact sales at emcore 626-293-3400, or visit www.emcore.com. 1527 applications video signal distribution to hfc catv and fttp nodes supports catv, qam, and dbs signal carriage replacement for externally modulated transmitters features dual redundant power supplies snmp network interface dual rf inputs for catv and dbs available on 100 ghz spaced itu dwdm c-band channels optimized rf integration of predistorter, amplifiers, and laser complete, efficient laser bias and tec control circuitry oem/odm opportunities available through emcore model 755mm-m optical transmitter dwdm, 20 km, low distortion, wideband emcore model 755mm-m is a directly modulated (dm) dwdm optical transmitter specifically designed for wideband applications that require both catv and dbs signals to be carried over up to 20 km of fiber. this facilitates networks designs that may use a single transmitter to carry multiple signals. the 755mm-m supports catv + dbs transmission up to 20 km. the 755mm family of transmitter produc ts is designed to support various catv transmitter applications with a common platform. a 75 catv rf video input supports frequencies up to 1002 mhz. integrated within the transmitter design are emcore?s low chirp control, noise suppression circuitry, and patented predistortion technology to provide outstanding performance with any of emcore?s wide range of cooled broadband lasers. a second 50 rf input supports frequencies up to 2600 mhz for fttp, l-band satellite, and wireless applications. performance highlights min typ max units operating temperature range 0 25 50 c wavelength (100 ghz itu options) 1530 - 1560 nm optical power 7 - - dbm frequency response (75 catv input) (50 l-band input) 47 950 - - 1002 2600 mhz cnr 51 - - db cso - - -60 dbc ctb - - -65 dbc c/i (3 rd order, 950 ? 2200 mhz) - - -60 dbc sbs suppression capability - - 17 dbm noise and distortion performance above assumes 79 channel ntsc loading with no qam, 0 dbm received optical power, 0 and 20 km smf-28 fiber or equivalent. see following pages for complete specifications and operating/test conditions.
2 preliminary datasheet | october 3, 2007 emcore corporation model 755mm-m optical transmitter absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the transmitter. these are absolute stress rat ings only. functional operation of the device is not implied or guarante ed at these or any other condit ions in excess of those given in the operational sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect device reliability. parameter symbol min max unit storage temperature (power off) t stg -40 85 c 75 catv rf input level (without l-band input) - - +3 dbm 50 l-band rf input level (without catv input) - - +15 dbm 75 catv rf input level (with +10 dbm l-band input) - - +1 dbm 50 l-band rf input level (with +1 dbm catv input) - - +10 dbm ac input range v ac 94 245 v ac ac input frequency range f ac 50 60 hz dc input range v dc 36 60 v dc power consumption p - 50 w optical characteristics parameter condition min typ max unit optical output power - 7 - - dbm sbs threshold smf-28, 20 km - - 17 dbm wavelength - see itu channel table nm wavelength stability - -30 - +30 pm wavelength tolerance 100 ghz spacing -0.4 - +0.4 nm output level stability - -0.5 - +0.5 db spectral width (-20 db) i f = i op - 0.1 1.0 nm side mode suppression ratio - 30 40 - db optical isolation - 30 - - db optical return loss 1 apc style connector 35 - - db 1. in order to prevent reflection-induced distortion, the laser must be connected to an optical cable having a return loss of at least 55 db for discrete reflections and 30 db for distributed reflections.
3 preliminary datasheet | october 3, 2007 emcore corporation model 755mm-m optical transmitter rf characteristics 1 parameter condition min typ max unit frequency response flatness 75 input, 47 - 1002 mhz 50 input, 950 - 2600 mhz - - - - 1.5 3.5 db p-p input impedance catv, 47 ? 1002 mhz rf input l-band, 950 ? 2600 mhz rf input - - 75 50 - - ohms c/i (3 rd order) 5 2 50 rf input - - -60 dbc 75 test port response flatness relative to 75 input -1 - +1 db rf test point level with ?2.0 dbm total rf power into 75 input -20.5 - -19.5 dbm 75 input rf level 79-channel loading, composite -2.2 -2.0 -1.8 dbm 50 input rf level composite -0.5 0.0 +0.5 dbm 75 catv video input return loss 47 to 1002 mhz 16 - - db 75 catv test port input return loss 47 to 870 mhz 870 to 1002 mhz 16 14 - - - - db 50 l-band input return loss 950 to 2600 mhz 10 - - db 1. 25 c ambient operation. test receiver responsivity > 0.95 a/w at 1550 nm and equivalent noise current of 7 pa/ hz. smf-28 fiber, 0.25 db/km maximum loss, 1312 nm + 3 nm zero dispersion wavelength. 5. 2. two ?3 dbm/tone carriers, f i = 2000 mhz, f 2 = 2000.5 mhz, 50 input. channel loading rf input level per channel (dbmv) composite rf input level (dbmv) composite rf input level (dbm) cnr 1,2,3 (db) cso 1,3,4 (dbc) ctb 1,3,4 (dbc) ber 5 79 channel ntsc 27.83 46.75 -2.0 51.0 -60 -65 - 79 channel ntsc + 75 channel qam-256 @ -6 db 27.83 (analog) 21.83 (qam) 47.68 -1.066 49.0 -60 -65 10 -7 110 channel ntsc 26.34 46.75 -2.0 48.5 -60 -65 - 42 channel cenelec 30.52 46.75 -2.0 52.0 -60 -65 - 60 channel pal 28.97 46.75 -2.0 52.0 -60 -65 - 1. 10 km transmitter option is tested through 0 km and 10 km sm f-28 fiber. 20 km transmitter option is tested through 0 km and 20 km smf-28 fiber. 2. cnr may degrade up to 0.5 db over the operating temperature range. 3. 0 dbm optical power received. 4. cso and ctb may degrade up to 1.5 db over the operating temperature range. 5. pre-fec.
4 preliminary datasheet | october 3, 2007 emcore corporation model 755mm-m optical transmitter package characteristics parameter dimension unit height 1.75 (44), 1ru inch (mm) width 19 (483) inch (mm) depth 17.77 (452) with fans inch (mm) weight 9.0 (4) pounds (kg) itu channel numbering channel wavelength (nm) channel wavelength (nm) channel wavelength (nm) 62 1527.99 47 1539.77 32 1551.72 61 1528.77 46 1540.56 31 1552.52 60 1529.55 45 1541.35 30 1553.33 59 1530.33 44 1542.14 29 1554.13 58 1531.12 43 1542.94 28 1554.94 57 1531.90 42 1543.73 27 1555.75 56 1532.68 41 1544.53 26 1556.56 55 1533.47 40 1545.32 25 1557.36 54 1534.25 39 1546.12 24 1558.17 53 1535.04 38 1546.92 23 1558.98 52 1535.82 37 1547.72 22 1559.79 51 1536.61 36 1548.51 21 1560.61 50 1537.40 35 1549.32 20 1561.42 49 1538.19 34 1550.12 19 1562.23 48 1538.98 33 1550.92 18 1563.05
5 preliminary datasheet | october 3, 2007 emcore corporation model 755mm-m optical transmitter outline drawing dimensions are in inches.
6 preliminary datasheet | october 3, 2007 emcore corporation model 755mm-m optical transmitter laser safety information this product meets the appropriate standard in title 21 of the code of federal regulations (cfr). fda/cdrh class iiib laser product. a supplemental fda application has been filed and it is anticipated that the accession number for this product will be 0220309 since this accessi on number is from a similar product family. final determination will be no later than 1/1/08. single-mode fiber sc/apc bulkhead connectors (standard). wavelength = 1.5 m. maximum power = 30 mw. caution: use of controls, adjustments and procedures other than those specified herein may result in hazardous laser radiation exposure.
7 preliminary datasheet | october 3, 2007 emcore corporation model 755mm-m optical transmitter ordering information ? model number options 755mm-m-ww-x-y-zz-bb-cc 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. emcore and the emcore logo are trademarks of emcore corporation. 755mm-m ds 100 3 07 ? copyright 2007. emcore corporation emcore corporation 2015 west chestnut street a lhambra, california 91803-1542 tel: 626-293-3400 fax: 626-293-3428 www.emcore.com model version ww = 10, 0 ? 10 km version ww = 20, 0 ? 20 km version channel plan x = a, 79-channel ntsc (standard) x = b, 79-channel ntsc + 75-channel qam-256 x = c, 42-channel cenelec x = d, 110-channel ntsc x = p, 60-channel pal rf input y = l, 75 catv + 50 l-band (standard) optical connector zz = fc, fc/apc zz = sc, sc/apc (standard) optical power zz = 07, 7 dbm (standard) itu grid wavelength bb = 00, non-itu grid bb = 21, channel 21, 1560.61 nm ??. bb = 34, channel 34, 1550.12 nm (standard) ??. bb = 59, channel 59, 1530.33 nm
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