preliminary datasheet | may 18, 2007 for more information on this and other products: contact sales at ortel 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-u optical transmitter dwdm, 20 km, low distortion, wideband emcore?s model 755mm-u 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-u supports full 79-channel ntsc analog signal carriage up to 10 km. a combination of qam, dbs, and reduced channel analog catv, are supported in links 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 870 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 75 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 10 - - dbm frequency response (75 catv port) (75 l-band port) 47 950 - - 870 2600 mhz cnr (47 ? 870 mhz) 52 - - db cso (47 ? 870 mhz) - - -56 dbc ctb (47 ? 870 mhz) - - -63 dbc c/i (3 rd order, 950 ? 2600 mhz) - - -60 dbc sbs suppression capability - - 15 dbm noise and distortion performance above assumes 79 channel ntsc loading with no qam, 0 dbm received optical power, 10 km smf-28 fiber or equivalent. see following pages for complete specifications and operating/test conditions.
2 preliminary datasheet | may 18, 2007 ortel, a division of emcore model 755mm-u 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 75 l-band rf input level (without catv input) - - +15 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 - 10 - - dbm sbs threshold 10 km, smf-28 - - 15 dbm wavelength - see table nm side mode suppression ratio - 30 - - db optical return loss 1 apc style connector 40 - - 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 | may 18, 2007 ortel, a division of emcore model 755mm-u optical transmitter rf characteristics parameter condition min typ max unit bandwidth - 47 - 2600 mhz frequency response 47 - 870 mhz 950 - 2600 mhz - - - - 1.5 3.5 db p-p rf input level 47 ? 870 mhz 950 ? 2600 mhz -2.5 -0.5 -2.0 0.0 1.5 0.5 dbm cnr smf-28 or equivalent - - - 52 1 51 2 47 3 - - - db cso smf-28 or equivalent - - - - -56 1,3 -60 2 dbc ctb smf-28 or equivalent - - - - - - -63 1 -65 2 -60 3 dbc c/i (3 rd order) 950 ? 2600 mhz rf input - - -60 dbc input impedance 47 ? 870 mhz rf input 950 ? 2600 mhz rf input - - 75 50 - - ohms 75 catv video input return loss 47 to 870 mhz 16 - - db 75 catv test port input return loss 47 to 870 mhz 16 - - db 75 l-band input return loss 950 to 2600 mhz 10 - - db 1. 79 cw ntsc carriers, no qam channels, 4 mhz noise bandwidth, 0 dbm received power, 10 km fiber. 2. 77 cw ntsc carriers, 53 qam-256 channels at ?6 db, 4 mhz noise bandwidth, -3 dbm received power, 10 km fiber. 3. 10 cw jctea carriers, 75 qam-256 channels at ? 6 db, l-band, 0 dbm received power, 20 km fiber. 4. two ?3 dbm/tone carriers, f i = 2000 mhz, f 2 = 2000.5 mhz, 75 input. 79-channel composite power = 46.8 dbmv, -5 dbm received power. 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)
4 preliminary datasheet | may 18, 2007 ortel, a division of emcore model 755mm-u optical transmitter 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 | may 18, 2007 ortel, a division of emcore model 755mm-u optical transmitter outline drawing dimensions are in inches.
6 preliminary datasheet | may 18, 2007 ortel, a division of emcore model 755mm-u 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 1/1/05. single-mode fiber pigtail with sc/apc connectors (standard). wavelength = 1.5 m. maximum power = 30 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.
7 preliminary datasheet | may 18, 2007 ortel, a division of emcore model 755mm-u optical transmitter ordering information ? model number options 755mm-u-x-yy-zz 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 . 755mm-u ds 051807 ? 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 model version 755mm-u channel plan x = a, 79-channel ntsc + 53-channel qam-256 x = b, jctea standard + 75-channel qam-256 itu grid channel number yy = 18, 19, 20, ?, 62 optical connector zz = fc, fc/apc zz = sc, sc/apc
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