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Optical Engineering

Fully passive-alignment pluggable compact parallel optical interconnection modules based on a direct-butt-coupling structure for fiber-optic applications
Author(s): Kwon-Seob Lim; Hyoung-Jun Park; Hyun Seo Kang; Young Sun Kim; Jae-Hyung Jang
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Paper Abstract

A low-cost packaging method utilizing a fully passive optical alignment and surface-mounting method is demonstrated for pluggable compact and slim multichannel optical interconnection modules using a VCSEL/PIN-PD chip array. The modules are based on a nonplanar bent right-angle electrical signal path on a silicon platform and direct-butt-optical coupling without a bulky and expensive microlens array. The measured optical direct-butt-coupling efficiencies of each channel without any bulky optics are as high as 33% and 95% for the transmitter and receiver, respectively. Excellent lateral optical alignment tolerance of larger than 60  μm for both the transmitter and receiver module significantly reduces the manufacturing and material costs as well as the packaging time. The clear eye diagrams, extinction ratios higher than 8 dB at 10.3 Gbps for the transmitter module, and receiver sensitivity of better than −13.1  dBm at 10.3 Gbps and a bit error rate of 10−12 for all channels are demonstrated. Considering that the optical output power of the transmitter is greater than 0 dBm, the module has a sufficient power margin of about 13 dB for 10.3 Gbps operations for all channels.

Paper Details

Date Published: 2 February 2016
PDF: 9 pages
Opt. Eng. 55(2) 026107 doi: 10.1117/1.OE.55.2.026107
Published in: Optical Engineering Volume 55, Issue 2
Show Author Affiliations
Kwon-Seob Lim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Gwangju Institute of Science and Technology (Korea, Republic of)
Hyoung-Jun Park, Electronics and Telecommunications Research Institute (South Korea)
Hyun Seo Kang, Electronics and Telecommunications Research Institute (Korea, Republic of)
Young Sun Kim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Jae-Hyung Jang, Gwangju Institute of Science and Technology (Korea, Republic of)


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