| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Research Abstract |
We propose the 0.8 um range silicon photonic integrated circuits for a next generation network and a compact photonic receiver. In optical interconnection, 0.8 um wavelength region vertical-cavity surface-emitting lasers (VCSELs) and Si photodiodes (PDs) are used for realizing low cost systems. Si avalanche PDs (APDs) was fabricated by the complementary metal-oxide-semiconductor process are expected for optical interconnection applications due to easy integration with trans-impedance amplifiers (TIA) and the following electronic circuits.
The bandwidth of APDs was increased with decreasing the detection area and decreasing the electrode PAD size because of decreased depletion capacitance at pn junctions and the PAD capacitance. The maximum bandwidth of 9 GHz was obtained. We fabricated multi-mode Ta2O5 waveguides by a CF4 reactive ion etching process. The propagation loss of 1 dB/cm was obtained at 830nm,
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