Electromagnetic shielding of plastic packaging in cost-effective optical transceiver modules

Cost-effective plastic laser transceiver modules having transmission rates of 155 Mb/s, 1.25 Gb/s, and 2.5 Gb/s with effective electromagnetic (EM) shielding ability are proposed. The results show that the packaged optical transceiver modules exhibit shielding effectiveness (SE) of over 20 dB. The packaged plastic optical transceiver modules with their good SE are suitable for use in low-cost and low electromagnetic interference (EMI) gigabit Ethernet lightwave transmission systems.