preliminary datasheet | aug 2006 for more information on this and other products: contact sales at ortel 626-293-3400, or visit www.emcore.com. model 755mm-x (3980e) optical transmitter 1550 nm, 65 km, low distortion emcore?s model 755mm-x is a recently developed 1550 nm transmitter suitable for link lengths of up to 65 km. the 75 rf video input supports frequencies up to 870 mhz. also integrated into the rf/optical design are emcore?s low chirp control and noise suppression circuitry. integrated within the design is emcore?s patented pre distortion technology to provide outstanding performance with any of emcore?s wide range of cooled broadband lasers. these modules may be made available with dual power supply options and snmp capability. the 755mm-x adopts the hybrid modulation (patent pending) scheme with superior performance, which is similar to that of external modulation and easy tuning which is similar to that of direct modulation, making it ideal for either fttp or hfc network applications. 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) 1540 - 1560 nm optical power 6 - - dbm frequency response 47 - 870 mhz cnr - 52 - db cso - - -65 dbc ctb - - -65 dbc sbs suppression capability - - 16 dbm rf input return loss 16 - - db optical return loss 40 - - db noise performance above assumes 79 channel ntsc loading with no qam, 0 dbm received optical power applications video signal distribution to hfc catv and fttp nodes video overlay in passive optical networks (pon) replacement for externally modulated transmitters features enhanced 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 digital monitoring and control itu wavelengths
preliminary datasheet- aug, 2006 755mm-x 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 characteristics parameter condition min typ max unit bandwidth - 47 - 870 mhz frequency response 47-870 mhz - - 1.5 1 db p-p rf input level - -13.7 -11.7 -9.7 dbm cnr 2 - - 52 - db cso 2 - - - -65 dbc ctb 2 - - - -65 dbc in p ut im p edance 47 ? 870 mhz rf in p ut - 75 - ohms 75 video input return loss 47 to 870 mhz 16 - - db 75 test port input return loss 47 to 870 mhz 16 - - db 1.excludes tilt component. 2.cw carriers, 79 channel ntsc channel plan, 4 mhz noise bandwidth, 0 dbm received power, smf-28 or equivalent. optical characteristics parameter condition min typ max unit optical output power - - 6 - dbm sbs threshold 65 km smf-28 - - 16 dbm side mode suppression ratio - 30 - - db optical return loss 1 apc style connector 40 - - db rin back to back -160 dbc/hz 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
preliminary datasheet- aug, 2006 755mm-x 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 755mm-x - - - - xx - channel plan out p ut sbs connectors itu wavelen g ths ac power cord a = ntsc 79-ch 06=06 dbm (std) a = 16 dbm (std) sc = sc/apc ee= 21, 1560.61nm na = n.america fc = fc/apc : ec = e2000/apc ee= 45, 1541.35 nm 3of 5
preliminary datasheet- aug, 2006 755mm-x 1550 nm transmitter itu wavelength channel designations channel wavelength (nm) 21 1560.61 23 1558.98 25 1557.36 27 1555.75 29 1554.13 31 1552.52 33 1550.92 35 1549.32 37 1547.72 39 1546.12 41 1544.53 43 1542.94 45 1541.35 4of 5
preliminary datasheet- aug, 2006 755mm-x 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 = 50 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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