10 Gbit/s optical front end using Si-bipolar preamplifier IC, flipchip APD, and slant-end fibre |
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| Authors: | Hamano H Yamamoto T Nishizawa Y Oikawa Y Kuwatsuka H Tahara A Suzuki K Nishimura A |
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| Affiliation: | Fujitsu Labs. Ltd., Kawasaki, Japan; |
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| Abstract: | An optical front end for a 10 Gbit/s optical receiver has been fabricated that features a 10 GHz Si preamplifier IC, a flipchip APD with an 80 GHz gain-bandwidth product, and slant-end fibre optical coupling. Hybrid construction consisting of a flipchip APD mounted directly on the preamplifier chip minimises interconnect parasitics, and slant-end fibre optical coupling simplifies flat-package assembly of chip and fibre. An optical sensitivity of -23 dBm was achieved.<> |
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