| 摘要 |
<p>The present invention relates to an interconnect structure for coupling an electronic unit (120) for outputting and/or receiving electric signals, and an optical unit (100) for converting said electric signals into optical signals and/or vice versa. The present invention also relates to an optoelectronic module comprising such an interconnect structure. The interconnect structure comprises an electrically insulating substrate and at least one pair of transmission leads (104, 106) to be coupled between said electronic unit (120) and said optical unit (100), a first lead (104) being operable as a signal line, a second lead (106) being operable as a ground line, wherein said second lead (106) is formed to have a lower impedance than said first lead (104). Cross-talk between neighbouring VCSEL is reduced as a signal current supplied by the signal line (104a) is mainly returned via the respective ground line (106a) and not via the signal line (104b) of the adjacent VCSEL. The ground lines (106) are connected to a ground plane layer (108) via contacts (118).</p> |
