applications ? antenna remoting ? cellular and pcs networks ? military communications ? tracking, telemetry, and control features ? high-dynamic-range ? long distance communications ? 10 mhz to 22 ghz bandwidth ? built-in optical isolator ? 1310 nm 1542 22 ghz 1310 nm microwave dfb laser the 1542 22 ghz 1310 nm microwave distributed feedback (dfb) laser provides exceptional performance for linear fber optics communications in very wide bandwidth applications. emcores linear fber optics are an excellent alternative to using coaxial cable systems to transmit 10 mhz to 22 ghz signals. they offer signifcant improvements in reliability of microwave communications networks by transmitting the rf signal in its original format. as a result of these properties, the 1542 provides signifcant improvements in signal quality for a wide variety of applications including antenna remoting, telemetry, timing and reference signal distribution, measurement and delay lines. the basic 1542 laser module can be integrated into a complete transmitter either as a fange-mount for extreme environments, or as a plug-in for emcores sys - tem 10000 rack-mount system. electronics within the fange-mount and plug-in transmitters control the laser temperature and dc bias current and provide warn - ings whenever the temperature or power deviates from their intended levels. this provides a self-regulating, fully-integrated microwave product with excellent noise performance in sensitive optical links. typical data performance highlights parameter min typ max unit available wavelengths 1290 1310 1340 nm optical output power - 9 - dbm temperature range -40 - +65 c frequency range 10 - 22000 mhz microwave datasheet | august 2013 ? 2013 emcore corporation | rev 2013.08 satcom-sales@emcore.com www.emcore.com information contained herein is deemed to be reliable and accurate as of the issue date. emcore reserves the right to change the design or specifcations at any time without notice. +1 626-293-3400
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 condition min max unit operating temperature range of baseplate t op continuous -40 +65 ?c storage temperature t stg - -40 +85 ?c rf input power p in 60 seconds - +20 dbm laser forward dc current - - 25 120 ma photodiode reverse voltage v rpd - 200 10 v laser reverse voltage - - - 1 v esd - hmb: r = 1500 ohm, c = 100 pf -500 500 v tec current i tec continuous -1.9 1.9 a electrical characteristics parameter specifcations unit wavelength 1310 to + 30 nm spectral width, fwhm 2 , typ., max 10 mhz optical power, typical @ ith +55 ma 8 (min) dbm optical power stability vs. temperature + 15 % dc modulations gain, typical 0.24 - 1. specifcations guaranteed when unit is connected to an optical path with return loss >35 db. 2. no rf input. dc parameter symbol condition min max units laser bias i op 25c - 65 ma threshold current i th 25c - 26 ma forward voltage v f i op = i th + 50 ma - 6 v thermo electric cooler i tec - -1.1 - a thermistor r th 25c 9.5 10 k thermistor temperature coeffcient te th 25c - 4.4 % / c pin description a thermistor b tec (-) c thermistor d tec (+) e laser bias f ground g monitor photodiode seven-pin miniature rectangular connector 1542 22 ghz 1310 nm microwave dfb laser microwave datasheet | august 2013 ? 2013 emcore corporation | rev 2013.08 satcom-sales@emcore.com www.emcore.com information contained herein is deemed to be reliable and accurate as of the issue date. emcore reserves the right to change the design or specifcations at any time without notice. +1 626-293-3400
electrical schematic mechanical drawing (dimensions are in inches) rf characteristics parameter specifcations unit 1542b 1542c 1542d 1542e maximum frequency 7 13 18 22 ghz minimum frequency 0.01 ghz amplitude flatness 1&2 4.0 4.0 5.0 5.0 db p-p input return loss (50 ) 7.0 4.0 4.0 4.0 db input 1 db compression +20 dbm input third order intercept 3 0.01 ghz - 7.0 ghz 7.0 ghz - 22.0 ghz +30 +25 noise figure (db) 4 0.01 ghz - 3.0 ghz 3.0 ghz - 7.0 ghz 7.0 ghz - 13.0 ghz 13.0 ghz - 18.0 ghz 18. ghz - 22.0 ghz 44 50 - - - 44 50 54 - - 44 50 54 59 - 44 50 54 59 61 1. specifcations guaranteed when unit is connected to an optical path with return loss >35 db. 2. peak to peak 3. two carrier test 4. no rf input 1542 22 ghz 1310 nm microwave dfb laser microwave datasheet | august 2013 ? 2013 emcore corporation | rev 2013.08 satcom-sales@emcore.com www.emcore.com information contained herein is deemed to be reliable and accurate as of the issue date. emcore reserves the right to change the design or specifcations at any time without notice. +1 626-293-3400
laser safety ordering information 1542n-yy-zz frequency (n) option code 7 ghz b 13 ghz c 18 ghz d 22 ghz e rf connector (yy) option code sma male sm sma female sf optical connector (zz) option code no optical connector, 900m buffered pigtail pg fc/apc optical connector, 900m buffered pigtail fa sc/apc, optical connector, 900m buffered pigtail sa this product meets the appropriate standard in title 21 of the code of federal regulations (cfr). fda/cdrh class 1m laser product. this device has been classifed with the fda/cdrh under accession number 0220191. all versions of this laser are class 1m laser product, tested according to iec 60825-1:2007 / en 60825-1:2007. an additional warning for class 1m laser prod - ucts. for diverging beams, this warning shall state that viewing the laser output with certain optical instruments (for example, eye loupes, magnifers and microscopes) within a distance of 100 mm may pose an eye hazard. for collimated beams, this warning shall state that viewing the laser output with certain optical instruments designed for use at a distance (for example, telescopes and binoculars) may pose an eye hazard. wavelength = 1.5 m. maximum power = 30 mw. caution: use of controls, adjustments and procedures other than those specifed herein may result in hazardous laser radiation exposure. *iec is a registered trademark of the international electrotechnical commission. 1542 22 ghz 1310 nm microwave dfb laser microwave datasheet | august 2013 ? 2013 emcore corporation | rev 2013.08 satcom-sales@emcore.com www.emcore.com information contained herein is deemed to be reliable and accurate as of the issue date. emcore reserves the right to change the design or specifcations at any time without notice. +1 626-293-3400
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