description the alcatel 1928 ofa (optical fiber amplifier) is designed to offer excellent performance characteristics for wdm systems in the 1530 - 1560 nm wavelength range. the standard, double-stage 17 dbm unit can be supplemented using an external pump module to achieve 20 dbm output power. tap couplers at each signal port offer full monitoring capability. the alcatel 1928 ofa achieves very flat gain in excess of 22 db or 26 db, while limiting gain excursion to < 1 db (typical) over the entire 30 nm wavelength range. optimization of the architecture yields very low typical noise figures; < 5 db for the 17 dbm configurations. features ? optimized for d-wdm transmission ? dual-stage 17 dbm basic unit can be equipped with an external pump module to offer 20 dbm output power ? low noise figure for optimal snr ? flat gain across wide bandwidth range ? polarization independent & bit-rate transparent ? optical isolators at input, monitor taps, and output minimize system susceptibility to reflection ? compact, rugged low profile package applications ? power booster for d-wdm systems ? low-noise in-line amplifier for transport systems ? pre-amplifier for systems in which dispersion compensation access is not required. optical characteristics 14 dbm basic unit, pump 980 nm parameter symb min max unit laser pump drive current i drive 980 330 ma laser pump drive current i drive 1480 875 ma laser voltage v drive 2.5 v photodetector monitor i mon 100 2500 a tec drive (70) i tec 1.5 a tec voltage v tec 3.8 v all parameters are specified within the overall temperature range for bol electrical characteristics + 17 dbm + 20 dbm parameter symb min typical max min typical max unit operating wavelength 1530 1560 1530 1560 nm output power pout 17 20 dbm external pump power, 1480 nm g na 180 mw input power [1] pin - 5 - 2 dbm input power [2] pin - 9 - 6 dbm noise figure nf < 5 < 5.5 db polarization mode dispersion pmd 0.5 0.5 ps gain flatness ? g < 1 < 1 db all parameters are specified within the overall temperature range. the typical values are referenced to + 25 c. [1] gain = 22 db / [2] gain = 26 db absolute maximum ratings parameter symbol min max unit operating temperature oper -5 +70 c storage temperature stor -40 +85 c pump bias current, end of life 1 drive 1 max 400 ma pump bias current, end of life 1 drive 2 max 1000 ma soldering temperature (3s) sold 350 c axial pull force on fiber (10s) / 10 n fiber bend radius from package / 40 mm stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are absolute stress ratings only. a lcatel 1928 ofa d-wdm straight-line erbium-doped fiber amplifier
mechanical details 125 x 100 x 19 mm october 00 copyright ? 2000 alcatel optronics customized versions are available for large quantities. performance figures contained in this document must be specifically confirmed in writing by alcatel optronics before they become applicable to any particular order or contract. alcatel optronics reserves the right to make changes to the products or information contained herein without notice. pin out n description 1 pump cooler - 2 pump cooler - 3pump laser cathode 4 pumplaser anode 5nc 6nc 7nc 8nc 9nc 10 nc 11 pump edfa case pigtails description n description 1 red, sc/pc; signal output 2 white, sc/pc; output tap* 3 blue, sc/pc; signal input 4 black, sc/pc; input tap* 5 yellow, sc/apc; external pump input * photodiode monitoring available instead of pigtail ordering information alcatel 1928 ofa part description connector number type 3cn 00344 aa 17 dbm/22 db gain (see pigtail chart) 3cn 00442 aa 17 dbm/26 db gain (see pigtail chart) n description 12 nc* 13 pump cooler + 14 pump cooler + 15 pump thermistor 16 pump thermistor 17 pump monitor cathode 18 pump monitor anode 19 nc 20 nc 21 nc 22 nc stands for "not connected" standards itu-t g.652 optical fiber itu-t g.653 shifted dispersion fiber iec 68-2 and mil std 883 environment laser radiation avoid exposure to beam class 3 b laser product attention observe precautions for handling electrostatic discharge sensitive devices europe route de ville just f-91625 nozay cedex tel : (+33) 1 64 49 49 10 fax : (+33) 1 64 49 49 61 usa 12030 sunrise valley drive reston - va 22091-3495 tel : (+1) 703 715 3921 fax : (+1) 703 860 1183 canada 45, de villebois, suite 200 gatineau (pq) canada, j8t 8j7 tel : (+1) 819 243 3755 fax : (+1) 819 243 3354 japan yebisu garden place tower po box 5024 20-3, ebisu 4 - chome shibuya - ku tokyo 150 - 6028 tel : (+81) 3 5424 85 65 fax : (+81) 3 5424 85 81
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