tz7-01-133f ( 1 / 6 ) 4 december , 2001 approved approved charged p reliminary specification of uncooled dfb-ld module for 10gb/s applications ( stm-64, oc192 and 10g ethernet ) module type : fu-4 80 sdf a b c d x date approved 4,dec, ? 01 a.adachi mitsubishi electric corporation * mitsubishi electric corp. reserves the right to change product design and specification without notice.
tz7-01-133f ( 2 / 6 ) mitsubishi (optical devices) fu- 480 sdf 1.3 m m uncooled dfb-ld module with singlemode fiber pigtail for 10gb/s (bias circuit integrated, digital application) description module type fu- 4 80sdf is a 1. 3 m m uncooled dfb-ld module with single-mode optical fiber. this module is suitable to a light source for use in 10gb/s digital optical communication systems. features ? input impedance is 50 w, coplanar input ? distributed feedback (dfb) laser diode ? emission wavelength is the 1.3 m m band ? single-mode optical fiber pig-tail ? built-in optical isolator ? built-in thermistor and bias t ? with photodiode for optical output monitor application ? high speed transmission systems (~10gb/s) 1. absolute maximum ratings (tc=25c) item symbol condition rating unit optical output power pf cw 6 mw forward current if cw 100 ma laser diode reverse voltage vrl - 2 v reverse voltage vrd - 20 v photo diode forward current ifd - 2 ma operating case temperature tc - 0 ~ 65 c storage temperature tstg - -40 ~ 85 c
tz7-01-133f ( 3 / 6 ) mitsubishi (optical devices) fu- 480 sdf 1.3 m m uncooled dfb-ld module with singlemode fiber pigtail for 10gb/s (bias circuit integrated, digital application) 2. electrical/ optical characteristics (tc=0~65c, unless otherwise noted) item symbol condition min typ max unit threshold current ith cw, tc=25c - 10 25 ma op tical output power at threshold current pth cw, ibias=ith - - 50 m w operating current iop cw, pf= 1 mw, tc=25c - 3 0 5 0 ma operating voltage vop cw, pf= 1 mw, tc=25c - 1.2 1. 8 v input impedance zin - - 50 - w optical output power from fiber end pf cw, nominal - 1 - mw light-emission central wavelength l c cw, pf=1mw 1290 1310 1330 nm wavelength temper- ature coefficient l ct - - 0.09 0.1 nm/c spectral width (-20db full width) dl - - 0.8 nm side mode suppression ratio sr 35 45 - db extinction ratio ex - 6.5 - db dispersion penalty pp 40ps/nm disp. - - 1.0 db relative intensity noise nr cw, pf=1mw - -1 45 -130 db/hz tracking error [note 1] er cw, apc ( imon=const.) - 0.5 1.25 db differential efficiency h cw, tc=25c 0.005 - 0. 15 mw/ma monitor current imon cw, pf=1mw, vrd=5v 0.05 - 1 .5 ma optical isolation iso - 20 - - db dark current (pd) id vrd=5v - - 0.1 m a capacitance (pd) ct vrd=5v, f=1mhz - - 10 pf thermistor resistance rth tc=25c 9.5 10 10.5 k w b constant of rth b - - 3950 - k [note 1] er=max|10* log(pf / pf@25c)|
tz7-01-133f ( 4 / 6 ) mitsubishi (optical devices) fu- 480 sdf 1.3 m m uncooled dfb-ld module with singlemode fiber pigtail for 10gb/s (bias circuit integrated, digital application) 3. fiber pigtail specifications item specification unit type sm - mode field diameter 9.3 1 m m cladding diameter 125 2 m m jacket diameter 0.9 0.1 mm connector see table 1. - optical return loss of connector 40 (min) db table 1. type number connector type optical fiber length (note 3) optical conector length (note 3) fu-480 s df- 1m1 none 1000+200/-0 - fu-480 s df- v1m1 fc/pc 1000+200/-0 28.4 fu-480 s df- w1m1 sc/pc 1000+200/-0 34.5 note 3 ) typical value. note 4) there are some cases where a connector for testing is shipped with the product. then the fiber length not including the connector is more than 1000mm. documentation threshold current ( ith) at tc=25, 65 c operating current (iop) at tc=25, 65 c operating voltage ( v op) at tc=25 c light-emission central wavelength ( l c) at tc=25 c monitor current ( imon) at tc=25 c op tical output power from fiber end (pf)
tz7-01-133f ( 5 / 6 ) mitsubishi (optical devices) fu- 480 sdf 1.3 m m uncooled dfb-ld module with singlemode fiber pigtail for 10gb/s (bias circuit integrated, digital application) 4. pin configuration pin no. symbol connection 1 th thermistor 2 th thermistor 3 ld-c ld cathode (dc bias input) 4 pd-c pd cathode 5 pd-a pd anode 6 ld-a ld anode, case gnd 7 ld-rf ld cathode (rf input) 8 ld-a ld anode, case gnd 5 6 7 8 pd- a ld-a ld-rf ld-a pd- c ld-c th th 4 3 2 1 . . . 45 w pd ld top view
tz7-01-133f ( 6 / 6 ) mitsubishi (optical devices) fu- 480 sdf 1.3 m m uncooled dfb-ld module with singlemode fiber pigtail for 10gb/s (bias circuit integrated, digital application) outline diagram (unit : mm) fu-4 80s df
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