10 Gbps/ch Full-Duplex Optical Link Using a Single-Fiber Channel for Signal Transmission

Nga T. H. Nguyen, Jamshid Sangirov, Ikechi Augustine Ukaegbu, Tae-Woo Lee, Mu-Hee Cho, Hyo-Hoon Park

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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.
Original languageEnglish
Pages (from-to)609-612
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number6
Publication statusPublished - Jan 21 2014


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