TY - GEN
T1 - Link simulation of four channel CWDM transceiver modules
AU - Priyadarshi, A.
AU - Ramana, P. V.
AU - Leo, Chemmanda John
AU - Mhaisalkar, S. G.
AU - Kripesh, V.
PY - 2004
Y1 - 2004
N2 - Optical communication systems are extremely complex and difficult to analyze. It is often hard to predict the effect of various characteristics of the devices used on the signal fidelity in a fiber optic link. This work involves simulation of 2.5Gigabits per second (Gbps) coarse wavelength division multiplexing (CWDM) transceiver for end-to-end link performance. Simulation software is available commercially which can realistically model an optical link. Such simulation helps in analyzing the module under development and predicts the performance for a given link distance and the simulation output helps eliminating any likely performance degradation before realizing the actual hardware. The objective of the fiber optic link is to transport data or communication signals reliably over a longer distance. The desired Q factor is approximately 7 and the desired bit error rate (BER) is approximately 10 -12. The simulation objective is to ensure that the received pulses are of appropriate shape and of sufficient intensity, with minimized loss due to noise or attenuation, and to remove distortion present in the signal. The Q factor and BER obtained from either the eye diagram analyzer or the BER analyzer are used to analyze the degradation of the signal at the receiver components. In the present publication, simulation results of 2.5 Gbps uncooled CWDM transceiver modules are presented. Non_Return to Zero (NRZ) electrical signals from a Pseudo-Random Bit Sequence (PRBS) Generator are used as modulation input. Signals in the optical domain are detected at the PIN photodetector and are converted into electrical output signals. These electrical signals are amplified using a Trans-impedance Amplifier (TIA) and the amplified signals are filtered through a second order low pass Gaussian filter. Filtering removes distortion caused by noise or interference in the signal. The simulation inputs include the FP Laser Diode optical and electrical properties, pin Photo diode and TIA properties, and the link optical coupling losses. Effect of laser diode extinction ratio and device operating temperature was studied in detail. For the 2.5 Gbps module, a Q factor of 6.6 and the BER of 1.43e-11 are observed for the worst case, when the transceiver is operated at 125°C.
AB - Optical communication systems are extremely complex and difficult to analyze. It is often hard to predict the effect of various characteristics of the devices used on the signal fidelity in a fiber optic link. This work involves simulation of 2.5Gigabits per second (Gbps) coarse wavelength division multiplexing (CWDM) transceiver for end-to-end link performance. Simulation software is available commercially which can realistically model an optical link. Such simulation helps in analyzing the module under development and predicts the performance for a given link distance and the simulation output helps eliminating any likely performance degradation before realizing the actual hardware. The objective of the fiber optic link is to transport data or communication signals reliably over a longer distance. The desired Q factor is approximately 7 and the desired bit error rate (BER) is approximately 10 -12. The simulation objective is to ensure that the received pulses are of appropriate shape and of sufficient intensity, with minimized loss due to noise or attenuation, and to remove distortion present in the signal. The Q factor and BER obtained from either the eye diagram analyzer or the BER analyzer are used to analyze the degradation of the signal at the receiver components. In the present publication, simulation results of 2.5 Gbps uncooled CWDM transceiver modules are presented. Non_Return to Zero (NRZ) electrical signals from a Pseudo-Random Bit Sequence (PRBS) Generator are used as modulation input. Signals in the optical domain are detected at the PIN photodetector and are converted into electrical output signals. These electrical signals are amplified using a Trans-impedance Amplifier (TIA) and the amplified signals are filtered through a second order low pass Gaussian filter. Filtering removes distortion caused by noise or interference in the signal. The simulation inputs include the FP Laser Diode optical and electrical properties, pin Photo diode and TIA properties, and the link optical coupling losses. Effect of laser diode extinction ratio and device operating temperature was studied in detail. For the 2.5 Gbps module, a Q factor of 6.6 and the BER of 1.43e-11 are observed for the worst case, when the transceiver is operated at 125°C.
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M3 - Conference contribution
AN - SCOPUS:28444467002
SN - 0780388216
SN - 9780780388215
T3 - Proceedings of 6th Electronics Packaging Technology Conference, EPTC 2004
SP - 767
EP - 771
BT - Proceedings of 6th Electronics Packaging Technology Conference, EPTC 2004
A2 - Toh, K.C.
A2 - Mui, Y.C.
A2 - How, J.
A2 - Pang, J.H.L.
T2 - 6th Electronics Packaging Technology Conference, EPTC 2004
Y2 - 8 December 2005 through 10 December 2005
ER -