NEW PRODUCT 2.5Gbps VCSEL TOSA KTx-485-D3AA Description VCSEL module, TOSA(Transmitter Optical Sub Assembly) consists of reliable 850nm VCSEL, back monitor PIN PD and plastic SC or LC receptacle. The power monitor PD can be used with appropriate feedback control circuitry to set a constant power level for each VCSEL. The parts of plastic SC or LC receptacle are actively aligned. This module guarantees high coupling efficiency, high slope efficiency, low operating current and low tracking error over wide temperature range(0℃ to +85℃) and provides high optical performance. Features - 850㎚ Wavelength Range - High Data Rate ≥ 2.5Gbps - High Reliability - Low Current and Voltage - Multi mode - Other Configurations Available on Request Applications - High speed Data Communications - Gigabit Ethernet - Fiber Channel Characteristics Parameter Peak Fiber Coupled Optical Output Power Symbol Min. Typ. Max. Unit Condition Poc - 500 - uW IF=7㎃, 50/125um fiber NA=0.20 Threshold Current Ith - 1.5 3.0 ㎃ CW Slope Efficiency η 0.04 - 0.2 ㎽/㎃ IF=7㎃ Peak Wavelength λp 840 850 860 ㎚ IF=7㎃ Spectral Bandwidth(RMS - 0.85 ㎚ IF=7㎃ Forward Voltage ∆λ Vf - 1.7 2.2 V IF=7㎃ Breakdown Voltage Vb - -10 - V Rise and Fall Times tR / t F - 130 / 150 - Relative Intensity Noise Serises Resistance RIN Rs 20 -130 35 -122 55 Monitor Current IPD 0.3 - 1.0 mA Poc=0.5mW Dark Current ID - - 20 nA Poc=0mW, V R=3V BVRPD 30 115 V Poc=0mW, I R=10uA pF VR=0V, F=1MHz VR=3V, F=1MHz PD Reverse Voltage PD Capacitance C 100 55 Prebias Above Threshold, 20% ∼ 80% dB/Hz 1 GHz BW, If=7mA Ohm IF=7㎃ ps Issued Date : Jan. 2005