datasheet | oct 2006 for more information on this and other products: contact sales at ortel 626-293-3400, or visit www.emcore.com. model 755mm-u optical transmitter ortel?s model 755mm-u is a 1550 nm transmitter suitable for link lengths of up to 10 km with 79 channel analog loading. the 755mm-u may also be used up to 20 km with a lower channel load of 11 analog channels and 40 qam channels. the 75 ? ?? rf video input supports frequencies up to 870 mhz. a 50 ? (75 ? available ) rf input supports frequencies from 950 to 2600 mhz for fttp, l-band satellite, and wireless applications. also integrated into the rf/optical design are ortel?s low chirp control and noise suppression circuitry. ortel?s patented pre distortion technology provides outstanding performance with any of ortel?s wide range of cooled broadband lasers. these modules have optional dual redundant power supplies and snmp capability. the performance specifications indicated below are subject to change. performance highlights parameter min typ max unit operating temperature range 0 25 50 c wavelength (multiple options) 1530 - 1560 nm optical power 10 - - dbm frequency response 47 950 - - 870 2600 mhz mhz cnr (10 km) cnr (20 km) 52 48 - - db cso (10 km) cso (20 km) - - - - -56 -56 dbc dbc ctb (10 km) ctb (20 km) - - - - -63 -63 dbc dbc sbs (10 km) sbs (20 km) - - - - 17 12 dbm dbm rf input return loss 16 - - db optical return loss 40 - - db applications video signal distribution to hfc catv and fttp nodes video overlay in passive optical networks (pon) combines catv + l band inputs into a single platform features optical spectrum reshaping technology optimized rf integration of predistorter, amplifiers and laser dual redundant power supplies supports snmp protocol complete, efficient laser bias and tec control circuitry oem/odm opportunities available through ortel wideband transmitter digital monitoring and control itu wavelengths see following pages for complete specifications and operating/test conditions.
datasheet- oct, 2006 755mm-u 1550 nm transmitter 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 device is not implied at these or any other conditions 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 operating temperature range t op 0 50 c storage case temperature range t stg -20 65 c rf input level - - 3 dbm rf characteristics parameter condition min typ max unit bandwidth - 47 - 2600 mhz frequency response 47-870 mhz 950-2600 mhz - - - - 1.5 1 3.5 db p-p db p-p rf input level 79 channels analog 11 channel analog + 40 qam -2.5 -5.8 -2 -5.3 -1.5 -4.8 dbm dbm cnr 3 (10 km) cnr 5 (20 km) - - 52 48 - - - - db db cso 2 (10 km) cso 5 (20 km) - - - - - - -56 -56 dbc dbc ctb 2 (10 km) ctb 5 (20 km) - - - - - - -63 -63 dbc dbc input impedance 47 ? 870 mhz rf input 950-2600 mhz rf input - - 75 50 4 - - ohms ohms 75 video input return loss 47 to 870 mhz 16 - - db 75 test port input return loss 47 to 870 mhz 16 - - db 50 input return loss 4 950 to 2600 mhz 10 - - db 1.excludes tilt component. 2.cw carriers, 79 channel ntsc channel plan, 4 mhz noise bandwidth, -5 dbm received power, smf-28 or equivalent. 3. cw carriers, 79 channel ntsc channel plan, 4 mhz noi se bandwidth, 0 dbm received power, smf-28 or equivalent 4. 75 option available 5. 11 channel ntsc channel plan with 40 channel qam, 4 mhz noise bandwidth, 0 dbm received power, smf-28 or equivalent optical characteristics parameter condition min typ max unit optical output power - - 10 - dbm sbs threshold 10 km smf-28 20 km smf-28 - - - - 17 12 dbm dbm 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 2of 5
datasheet- oct, 2006 755mm-u 1550 nm transmitter power requirements parameter min. max. unit ac input range 94 50 245 60 vac hz dc input range 36 60 vdc power - 50 w package characteristics parameter dimension unit height 1.75 (44), 1u in. (mm.) width 19 (483) in. (mm.) depth 17.77(452) with fans in. (mm.) weight 9.0 (4) lbs. (kg.) part number / ordering information (note: customization can be made available upon request) 755mm-u - - - - xx - channel plan l band option options connectors itu wavelengths ac power cord a = ntsc 80-ch 50 = 50 ohm a = dual ps + snmp sc = sc/apc ee= 21, 1560.61nm na = n.america 75 = 75 ohm b = dual ps, no snmp fc = fc/apc : uk = u.k. & ire. c = single ps, no snmp ec = e2000/apc ee= 59, 1530.33 nm eu = europe ec = ec nema jp = japan 3of 5
datasheet- oct, 2006 755mm-u 1550 nm transmitter itu wavelength channel designations channel wavelength (nm) channel wavelength (nm) channel wavelength (nm) 21 1560.61 35 1549.32 49 1538.19 23 1558.98 37 1547.72 51 1536.61 25 1557.36 39 1546.12 53 1535.04 27 1555.75 41 1544.53 55 1533.47 29 1554.13 43 1542.94 57 1531.90 31 1552.52 45 1541.35 59 1530.33 33 1550.92 47 1539.77 4of 5
datasheet- oct, 2006 755mm-u 1550 nm 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. this device has been classifi ed with the fda/cdrh under accession number 0220800. single-mode bulkhead receptacles with internal sc/apc connectors (standard). wavelength = 1.5 m. maximum power = 30 mw. product is shipped with internal ac/dc and dc/dc power supply converters. caution: use of controls, adjustments and procedures other than those specified herein may result in hazardous laser radiation exposure. 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. ? copyright 2003. emcore corporation emcore corporation 2015 w. chestnut street 5of 5 a lhambra, ca 91803-1542 phone: 626-293-3400 fax: 626-293-3428 www.emcore.com
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