mitsubishi (optical devices) FU-48SDF-1 1.3 m dfb-ld module with singlemode fiber pigtail (bias circuit integrated. d igital application) description module type FU-48SDF-1 is a 1.3 m dfb-ld module with single-mode optical fiber. this module is suitable to a light source for use in 2.5gb/s digital optical communication systems. features ? multi quantum wells(mqw) dfb laser diode module ? input impedance is 25 ? ? emission wavelength is in 1.3 m band ? high-speed response ? built-in optical isolator ? built-in thermal electric cooler ? butterfly package ? with photodiode for optical output monitor application high speed transmission systems( to 2.5gb/s) absolute maximum ratings (tc=25 c) parameter symbol conditions rating unit laser diode optical output power from fiber end pf cw 10 mw forward current if cw 150 ma reverse voltage vrl - 2 v photodiode reverse voltage vrd - 20 v for monitoring forward current ifd - 2 ma cooler cooler voltage vpe - 2.4 v (note) cooler current ipe - 1.2 a operating case temperature tc - -20 to +65 c storage temperature tstg - -40 to +70 c note. even if the thermo-electric cooler (tec) is operated within the rated conditions, uncontrolled current loading or operation with heatsink may easily damage the module by exceeding the storage temperature range. thermistor resistance should be properly monitored by the feedback circuit during tec operation to avoid the catastrophic damage.
mitsubishi (optical devices) FU-48SDF-1 1.3 m dfb-ld module with singlemode fiber pigtail (bias circuit integrated. d igital application) optical characteristics (tld=25 c, tc=25 c unless otherwise noted) parameter symbol test conditions limits unit min. typ. max. threshold current ith cw - 15 40 ma operating current iop cw - 48 80 ma operating voltage vop cw, if=iop (note 1) - 1.3 1.8 v input impedance zin if=iop - 25 - w optical output power form fiber end pf cw, if=iop 4 6 mw light-emission central wavelength c cw, if=iop 1290 1310 1330 nm spectral width (-20db full width) ? (-20db) 2.5gb/s, nrz mark ratio 50% if_peak=iop extinction ratio 8% (note 2) -0.4- nm side mode suppression ratio smsr cw, if=iop 33 - - db cutoff frequency (-1.5db optical) fc if=iop 3.5 40 - db rise and fall time tr,tf 2.5gb/s, nrz mark ratio 50% if_peak=iop extinction ratio 8% (note 2) - - 150 ps relative intensity noise nr cw, if=iop - -155 -145 db/hz tracking error (note 3) er tc=-20 ~ +65 ? c, apc, atc - 0.3 - db differential efficiency - 0.1 0.17 0.35 mw/ma monitor current imon cw,if=iop,vrd=5v 0.1 - - ma dark current (pd) id vrd=5v - 0.1 1 a capacitance (pd) ct vrd=5v,f=1mhz - 10 - pf note 1) if : ld forward current note 2) optical return loss of the connectors should be greater than 40db in order to get the specified. note 3) er=max|10 log(pf/pf@25 c)| thermal characteristics (tld=tset, tc=-20 to 65c) parameter symbol test conditions limits unit min. typ. max. thermistor resistance rth tld=25 c 9.5 10 10.5 k ? b constant of rth b - - 3950 - k cooling capacity ? ttc=65 c45-- c cooler current ipe ? t=40 c-0.61a cooler voltage vpe ? t=40 c-1.22v optical fiber specification parameter limits unit type single mode --- mode field dia. 9.5 1 m cladding dia. 125 2 m jacket dia. 0.9typ. mm
mitsubishi (optical devices) FU-48SDF-1 1.3 m dfb-ld module with singlemode fiber pigtail (bias circuit integrated. d igital application) outline diagram (unit : mm) note. tolerance unless noted 0.5 FU-48SDF-1
|
