r08ds0036ej0100 rev.1.00 p age 1 of 9 mar 03, 2011 nx7 437 a g - aa nx7 437 b f - aa preliminary nx7437 series data sheet laser diode 1 490 nm ingaasp mqw - fp laser diode coaxial module for otdr application description the nx7 437 series is a 1 490 nm multiple q uantum well (mqw) structured fabry - perot (fp) laser diode coaxial module with single mode fiber. this module is specified to operate under pulsed condition and designed for light source of optical time domain reflectometer (otdr). features ? high output power p f = 9 0 mw @ i fp = 4 00 ma *1 ? long wavelength ? c = 1 490 nm ? nx7437ag - aa has a built - in monitor pd . *1 pulse conditions: pulse width (pw) = 10 ? s, duty = 1% r08ds0036ej0100 rev.1.00 mar 03, 2011
chapter ti tle r08ds0036ej0100 rev.1.00 p age 2 of 9 mar 03, 2011 package dimensions (unit: mm)
chapter ti tle r08ds0036ej0100 rev.1.00 p age 3 of 9 mar 03, 2011
chapter ti tle r08ds0036ej0100 rev.1.00 p age 4 of 9 mar 03, 2011 optical fiber characteristics parameter specificat ion unit mode field diameter 9.5 ? 1 ? m cladding diameter 125 ? 2 ? m maximum cladding noncircularity 2 % maximum core/cladding concentricity 1.6 % outer diameter 0.9 ? 0.1 mm cut - off wavelength 1 140 to 1 280 nm minimum fiber bending radius 30 mm fiber l ength 1 000 min. mm
chapter ti tle r08ds0036ej0100 rev.1.00 p age 5 of 9 mar 03, 2011 ordering information part number fiange type nx7 437 a g - aa without flange nx7 437 b f - aa flat mount flange absolute maximum ratings parameter symbol ratings unit pulsed forward current *1 i fp 6 00 ma reverse voltage v r 2.0 v r everse voltage (monitor pd , nx743 7 ag - aa only ) v rm 10 v forward current (monitor pd , nx743 7 ag - aa only ) i fpm 2.0 ma operating case temperature t c ? 20 to +60 ? c storage temperature t stg ? 40 to +85 ? c lead soldering temperature t sld 350 (3 sec.) ? c rela tive humidity (noncondensing) rh 85 % *1 pulse condition: pulse width (pw) = 10 ? s, duty = 1%
chapter ti tle r08ds0036ej0100 rev.1.00 p age 6 of 9 mar 03, 2011 electro - optical characteristics (t c = 25 ? parameter symbol conditions min. typ. max. unit forward voltage v fp i fp = 4 00 ma, pw = 10 ? s, duty = 1% 3. 0 v threshold current i th 15 50 ma optical output power from fiber p f i fp = 4 00 ma, pw = 10 ? s, duty = 1% 60 90 mw center wavelength ? c rms ( ? 20 db), i fp = 4 00 ma, pw = 10 ? s, duty = 1% 1 47 0 1 5 10 nm spectral width ? rms ( ? 20 db), i fp = 4 00 ma, pw = 10 ? s, duty = 1% 5 10 nm rise time t r 10 - 90% 2.0 ns fall time t f 90 - 10% 2.0 ns monitor current (nx7437ag - aa only) i m p f cw = 2 mw, v rm = 2 v 0.02 0.8 ma electro - optical characteristics (t c = 0 to +60 ? parameter symbol conditions min. typ. max. unit optical output power from fiber p f i fp = 4 00 ma, pw = 10 ? s, duty = 1% 4 0 mw spectral width ? rms ( ? 20 db), i fp = 4 00 ma, pw = 10 ? s, duty = 1% 5 10 nm
chapter ti tle r08ds0036ej0100 rev.1.00 p age 7 of 9 mar 03, 2011 typical characteristics (t c = 25 ? remark the gra phs indicate nominal characteristics.
chapter ti tle r08ds0036ej0100 rev.1.00 p age 8 of 9 mar 03, 2011 reference document name document no. opto - electronics devices pamphlet *1 px10160e *1 published by the former nec electronics corporation .
chapter ti tle r08ds0036ej0100 rev.1.00 p age 9 of 9 mar 03, 2011 safety information on this product warning laser beam a laser be am is emitted from this diode during operation. the l aser beam, visible or invisible, d irectly or indirectly, may cause i njury to the eye or loss of eyesight. ? do not look directly into the laser beam. ? avoid exposure to the laser beam, any reflected or collimated beam. caution gaas products this product uses gallium arsenide (gaas). gaas vapor and powder are hazardous to human health if inhaled or ingested, so please observe the following points. ? follow related laws and ordinances when disposing of the product. if there are no applicable laws and/or ordinances, dispose of the product as recommended below. 1. commission a disposal company able to (with a license to) collect, transport and dispose of materials that contain arsenic and other such ind ustrial waste materials. 2. exclude the product from general industrial waste and household garbage, and ensure that the product is controlled (as industrial waste subject to special control) up until final disposal. ? do not burn, destroy, cut, crush, or chemically dissolve the product. ? do not lick the product or in any way allow it to enter the mouth. caution optical fiber a glass - fiber is attached on the product. handle with care. ? when the fiber is broken or damaged, handle carefully to avoid i nj ur y from the damaged part or fragments.
all trademarks and registered trademarks are the property o f their respective owners. c - 1 revision history nx 7 437 series data s heet rev. date description page summary 1.00 mar 0 3 , 20 11 ? first edition issued
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