A 10 Gbps/ch full-duplex (simultaneous bidirectional) optical link utilizing two optical subassembly (OSA) transceiver (TRx) modules and two wavelengths, 850 and 1060 nm, for sending and receiving optical signals through a single fiber channel in a fiber array is demonstrated. Each of the OSA TRx modules consists of transmitter/receiver chips, optical fibers embedded in a V-grooved silicon substrate, two 45 ° mirrors formed in fibers, and three silicon optical benches for mounting vertical-cavity surface-emitting lasers, photodiodes (PDs), and monitoring PDs. Mirror-1 in the fiber is coated with a wavelength-filtering layer to reflect transmitted light and pass through received light. Mirror-2 deflects received light to the PD. Two OSA TRx modules were applied in an end-to-end quad small form-factor pluggable optical link for 40-Gbps operation. This optical link showed good performance with clear eye-diagrams and a BER of at <;10 -12 Gbps/ch with -8-dBm input power.
|Number of pages||4|
|Journal||IEEE Photonics Technology Letters|
|Publication status||Published - Jan 21 2014|
Nguyen, N. T. H., Sangirov, J., Ukaegbu, I. A., Lee, T-W., Cho, M-H., & Park, H-H. (2014). 10 Gbps/ch Full-Duplex Optical Link Using a Single-Fiber Channel for Signal Transmission. IEEE Photonics Technology Letters, 26(6), 609-612.