features continuous wave (cw) mqw dfb laser built-in tec, thermistor and monitor pd 14-pin butterfly type module 10mw output power selected wavelengths according to itu-t grid available ?polarization preserving (panda) fiber applications this mqw laser is intended for use in 2.5 and 10 gb/s long haul dwdm transmission systems. description the multiple quantum well (mqw) laser has high power cw operation. it is packaged in a ?utterfly?type module. this module has high optical coupling efficiency through an optical isolator. this module also includes a monitor photodiode, a thermoelectric cooler (tec) and thermistor. this laser is designed for use with external modulation components (such as linb0 3 modulators). note this device is not available with an axis aligned connector. the fujitsu connector is attached only for the convenience of measuring the extinction ratio at incoming inspection of the customer. a fusion splice is the recommended method for connecting this laser to an external modulator. parameter laser forward current photodiode reverse voltage cooler voltage symbol condition i f v dr v c 150 20 2.5 ratings v photodiode forward current i pf 10 ma v cw optical output power p f 15 cw mw ma laser reverse voltage v r 2 - - - - note (1) lead soldering time t sold 10 sec <260 c v unit absolute maximum ratings (t c =25 c) cooler current i c 1.4 a - - storage temperature t stg -40 to +70 c operating case temperature t op -20 to +70 c note 1: heatsink thickness shall be 10mm min. (refer to note on thermal precaution). edition 1.0 march 1999 1 1,550nm mqw-dfb continous wave laser fld5f6cx-h
edition 1.0 march 1999 1,550nm mqw-dfb continous wave laser fld5f6cx-h 2 parameter symbol laser set temperature t set relative intensity noise rin conditions - cw, pf=10mw, orl>40db, f=0.5ghz t l =tset, tc=+70 c, pf=10mw t l = tset, tc=+70 c, pf=10mw t l =+20 to +35 c t l =+20 to +35 c unit c min. +20 limits db/hz -157 - peak wavelength p note (4) nm +35 - optical output power p f cw, tc=-20 to +70 c mw - 10 - slope efficiency cw, pf=10mw, orl>40db cw, pf=10mw, orl>40db cw, pf=10mw, orl>40db cw, pf=10mw, orl>40db mw/ma tracking error (note 2) te im=constant, pf(tc=25 c)=10mw, tc=-20 to +70 c db +/-0.5 -- monitor current i m monitor dark current monitor capacitance idm c t pf=10mw v pd =5v v pd =5v, f=1 mhz ma na pf 1.0 100 10 0.04 - - - - - wavelength stability with case temperature - - pm/ c +/-2 -- after 20 years wavelength drift - nm 0.2 -- side mode suppression sr db - 30 33 spectral width (-3db) ? mhz 50 -8 - cooler current ic a 1.0 -- cooler voltage vc v 2.4 -- thermistor resistance rth k ? 12.7 6.3 - thermistor b constant (note 2) bk 3,630 3,270 3,450 optical isolation s22 tc=-20 to +70 c db - 25 - extinction ratio te/tm cw, pf=10mw db - 20 - threshold current i th cw ma 340 - forward voltage v f cw, i f =30 ma, pin 3,13 v - - 1.5 0.09 0.16 - max. typ. note 2. te=10*log[pf(tc)/pf(25)] note 3. relation between resistance and temperature ( k) is: rth (t) = rth (25)*exp[b(1/t-1/298)] note 4. the selected wavelength is available which is listed in figure 5. optical and electrical characteristics at (t l =t set , t c =25 c, bol, unless otherwise specified)
edition 1.0 march 1999 3 1,550nm mqw-dfb continous wave laser fld5f6cx-h fig.4 spectrum wavelength (nm) relative intensity (db) 0 -10 -40 -50 -60 -20 -30 10 1545 1550 1555 fig. 2 temperature dependance of wavelength laser temperature, t l ( c) wavelength (nm) 1550 1551 1552 1553 1554 10 20 30 40 fig. 1 forward voltage vs output power forward current, if (ma) output power, pf (mw) 9 6 3 0 12 060 30 90 fig. 3 cooler voltage -current cooler temperature ( c) cooler voltage (v) cooler current (a) -1.0 3.0 2.0 0.0 1.0 -1.0 3.0 2.0 0.0 1.0 02030 10 40 50 60 ic vc 70 80
4 edition 1.0 march 1999 fig. 5 wavelength table part number fld5f6cx-h62 -h61 -h60 -h59 -h58 -h57 -h56 -h55 -h54 -h53 -h52 -h51 -h50 -h49 -h48 -h47 1527.99 1528.77 1529.55 1530.33 1531.12 1531.90 1532.68 1533.47 1534.25 1535.04 1535.82 1536.61 1537.40 1538.19 1538.98 1539.77 1540.56 1541.35 1542.14 1542.94 1543.73 1544.53 1545.32 1546.12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 wavelength (nm) (tl=tset) (in vacuum) tolerance (nm) -h46 -h45 -h44 -h43 -h42 -h41 -h40 -h39 -h38 -h37 -h36 -h35 -h34 -h33 -h32 -h31 -h30 -h29 -h28 -h27 -h26 -h25 -h24 -h23 -h22 -h21 -h20 -h19 -h18 1546.92 1547.72 1548.51 1549.32 1550.12 1550.92 1551.72 1552.52 1553.33 1554.13 1554.94 1555.75 1556.55 1557.36 1558.17 1558.98 1559.79 1560.61 1561.42 1562.23 1563.05 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1,550nm mqw-dfb continous wave laser fld5f6cx-h
edition 1.0 march 1999 tec th 10 k ? top view pin 7 14.6 20.83 22.0 26.04 pin 8 4- 2.67 pin 1 5.2 8.89 12.7 0.9 13 all dimensions are in millimeters. 11.6 29.97 pin 14 2.54 14-0.5 17.24 15.2 0.5 1.70 5.41 5.47 8.17 0.5 1.70 4.15 5.47 23 *l p o 1. temperature monitor 2. temperature monitor 3. laser dc bias (-) 4. monitor (anode) 5. monitor (cathode) 6. tehp (+) 7. tehp (-) 8. case ground 9. case ground 10. n.c. 11. laser ground 12. laser modulation (-) 13. case ground 14. n.c. pin # function * pigtail length (l) shall be specified in the detail (individual) specification, if it is special. l=1500 min. for standard (preliminary) 15.24 ?x?package unit: mm for further information please contact: fujitsu compound semiconductor, inc. americas & r.o.w. 2355 zanker rd. san jose, ca 95131-1138, u.s.a. phone: (408) 232-9500 fax: (408) 428-9111 55 schanck road, suite a-2 freehold, nj 07728-2964, u.s.a. phone: (732) 303-0282 fax: (732) 431-3393 www.fcsi.fujitsu.com fujitsu miikroelctronik gmbh quantum devices division network house norreys drive maidenhead, berkshire sl6 4fj, uk phone:+44 (0)1628 504800 fax:+44 (0)1628 504888 fujitsu compound semiconductor products contain gallium arsenide (gaas) which can be hazardous to the human body and the environment. for safety, observe the following procedures: caution do not put this product into the mouth. do not alter the form of this product into a gas, powder, or liquid through burning, crushing, or chemical processing as these by-products are dangerous to the human body if inhaled, ingested, or swallowed. observe government laws and company regulations when discarding this product. this product must be discarded in accordance with methods specified by applicable hazardous waste procedures. fujitsu limited reserves the right to change products and specifications without notice. the information does not convey any license under rights of fujitsu limited or others. ? 1999 fujitsu compound semiconductor, inc. printed in u.s.a. fcsi0199m200 fujitsu quantum devices, ltd. asia & japan 2-7-1, nishi shinjuku shinjuku-ku, tokyo 163-0721 japan phone: 3-5322-3356 fax: 3-5322-3398 1,550nm mqw-dfb continous wave laser fld5f6cx-h 5
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