VARIABLE OPTICAL GAIN ARRAY: PRELIMINARY SPECIFICATION Description This semiconductor based variable optical gain array is intended for use in high bit rate applications (2.5 Gbit/s, 10 Gbit/s and 40 Gbit/s) to provide controllable gain to an array of 8 optical channels.An array of 8 optical amplifiers, a thermistor and thermo-electric cooler are included in a butterfly style package with single mode fiber ribbon pigtails. Applications This product is appropriate for both metro and long haul applications as a channel equalisation array providing variable gain to separate wavelength or bands of wavelength channels. F E AT U R E S 8 INDEPENDENTLY CONTROLLABLE GAIN ELEMENTS 1550 nm WINDOW HIGH OUTPUT POWER PER CHANNEL LOW POLARISATION DEPENDENCE LOW NOISE FIGURE COMPACT PACKAGE Specifications PARAMETER MIN SPECIFICATION Fiber-to-fiber max gain/channel 10 dB Noise figure (>5 dB gain) Saturation output power/channel 7 dBm Polarisation dependence Gain ripple at max gain 3dB optical bandwidth 40 nm Gain centre wavelength 1540 nm Bias current/channel Operating temp -5 deg C TYPICAL SPECIFICATION 15 dB 8 dB 10 dBm 0.2 dB 0.2 dB 50 nm 1550 nm 150 mA MAX SPECIFICATION 9 dB 0.3 dB 0.3 dB 1560 nm 200 mA 65 deg C