Lasers, Fiber Optics, and Communications

Fully passive-alignment pluggable compact parallel optical interconnection modules based on a direct-butt-coupling structure for fiber-optic applications

[+] Author Affiliations
Kwon-Seob Lim

Electronics and Telecommunications Research Institute, Communications and Internet Research Laboratory, 11, Cheomdangwagi-ro 176beon-gil, Buk-gu, Gwangju 61012, South Korea

Gwangju Institute of Science and Technology, School of Information and Communications, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, South Korea

Hyoung-Jun Park, Hyun Seo Kang, Young Sun Kim

Electronics and Telecommunications Research Institute, Communications and Internet Research Laboratory, 11, Cheomdangwagi-ro 176beon-gil, Buk-gu, Gwangju 61012, South Korea

Jae-Hyung Jang

Gwangju Institute of Science and Technology, School of Information and Communications, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, South Korea

Opt. Eng. 55(2), 026107 (Feb 02, 2016). doi:10.1117/1.OE.55.2.026107
History: Received October 26, 2015; Accepted January 11, 2016
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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 1012 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.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Kwon-Seob Lim ; Hyoung-Jun Park ; Hyun Seo Kang ; Young Sun Kim and Jae-Hyung Jang
"Fully passive-alignment pluggable compact parallel optical interconnection modules based on a direct-butt-coupling structure for fiber-optic applications", Opt. Eng. 55(2), 026107 (Feb 02, 2016). ; http://dx.doi.org/10.1117/1.OE.55.2.026107


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