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Optical Engineering • Open Access

Compact bidirectional optical subassembly vertically stacked with 1.25-Gbps transmitter and 10-Gbps receiver for passive optical networks
Author(s): Jong Jin Lee; Kwon-Seob Lim; Seihyoung Lee; Hyun Seo Kang

Paper Abstract

A compact bidirectional optical subassembly (BOSA) for a 1.25/10-Gbps passive optical network is developed. A vertically stacked 1.25-Gbps transmitter based on a silicon optical bench, and a 10-Gbps receiver based on a low temperature cofired ceramic are implemented to realize low-cost manufacturing and miniaturization for single package application. The proposed BOSA delivers an extinction ratio more than 10 dB at 1.25-Gbps modulation, optical output coupling efficiency is more than 60%, rise and fall time is under 300 ps, and the side mode suppression ratio is more than 35 dB for the transmitter part. For the receiver part, responsivity is more than 0.6 A/W, and sensitivity is lower than -17 dBm at a 10-Gbps bit error rate 10-12 and -21 dBm at BER 10-3 without forward error correction. The cross talk between receiver and transmitter is less than -53 dB up to 10 GHz, and optical isolation is 33 dB.

Paper Details

Date Published: 1 November 2010
PDF: 3 pages
Opt. Eng. 49(11) 110501 doi: 10.1117/1.3506718
Published in: Optical Engineering Volume 49, Issue 11
Show Author Affiliations
Jong Jin Lee, Electronics and Telecommunications Research Institute (Korea, Republic of)
Kwon-Seob Lim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Seihyoung Lee, Electronics and Telecommunications Research Institute (Korea, Republic of)
Hyun Seo Kang, Electronics and Telecommunications Research Institute (Korea, Republic of)


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