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Performance analysis of 10-μm-thick VCSEL array in fully embedded board level guided-wave optoelectronic interconnects

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4 Author(s)
Choi, C. ; Dept. of Electr. & Comput. Eng., Univ. of Texas, Austin, TX, USA ; Lin, L. ; Yujie Liu ; Chen, R.T.

We introduce a simple and effective heat sink structure for thin-film vertical cavity surface emitting lasers (VCSELs) in fully embedded board level guided-wave interconnects. A 50% quantum efficiency increase is experimentally confirmed for the 10-μm thin-film VCSELs. The thermal resistance of a 1 × 12 embedded thin-film VCSEL array in printed circuit board (PCB) is further analyzed. The experimental results show an excellent match with the simulated results. The 10-μm-thick VCSEL had the lowest thermal resistance and the highest differential efficiency compared to 250-, 200-, 150-, and 100-μm-thick VCSELs. A substrate removed VCSEL can be used in fully embedded board level optical interconnects without special cooling techniques.

Published in:

Lightwave Technology, Journal of  (Volume:21 ,  Issue: 6 )

Date of Publication:

June 2003

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