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Optical Engineering

Biwavelength transceiver module for parallel simultaneous bidirectional optical interconnections
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Paper Abstract

The design of a biwavelength transceiver (TRx) module for parallel simultaneous bidirectional optical interconnects is described. The TRx module has been implemented using two different wavelengths, 850 and 1060 nm, to send and receive signals simultaneously through a common optical interface while optimizing cost and performance. Filtering mirrors are formed in the optical fibers which are embedded on a V-grooved silicon substrate for reflecting and filtering optical signals from/to vertical-cavity surface-emitting laser (VCSEL)/photodiode (PD). The VCSEL and PD are flip-chip bonded on individual silicon optical benches, which are attached on the silicon substrate for optical signal coupling from the VCSEL to fiber and from fiber to the PD. A high-speed and low-loss ceramic printed circuit board, which has a compact size of 0.033 cc, has been designed to carry transmitter and receiver chips for easy packaging of the TRx module. Applied for quad small form-factor pluggable applications at 40-Gbps operation, the four-channel biwavelength TRx module showed clear eye diagrams with a bit error rate (BER) of 10 −12 at input powers of −5 and −5.8  dBm for 1060 and 850 nm operation modes, respectively.

Paper Details

Date Published: 16 December 2013
PDF: 4 pages
Opt. Eng. 52(12) 120502 doi: 10.1117/1.OE.52.12.120502
Published in: Optical Engineering Volume 52, Issue 12
Show Author Affiliations
Nga Thi Hang Nguyen, KAIST (Korea, Republic of)
Ikechi Augustine Ukaegbu, KAIST (Korea, Republic of)
Jamshid Sangirov, KAIST (Korea, Republic of)
Mu Hee Cho, KAIST (Korea, Republic of)
Tae-Woo Lee, KAIST (Korea, Republic of)
Hyo-Hoon Park, KAIST (Korea, Republic of)

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