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Ultrafast optical thresholding based on two-photon absorption GaAs waveguide photodetectors
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zheng, Zuyu Weiner, A. M. Marsh, J. Karkhanehchi, M. M. |
| Copyright Year | 1997 |
| Abstract | We report measurements of the pulsewidth dependence of the two-photon absorption photocurrent in GaAs p-i-n waveguide photodetectors using subpicosecond optical pulses at 1.5 /spl mu/m. For fixed pulse energy, the photocurrent is observed to depend linearly on the inverse of the optical pulsewidth. A subnanosecond electrical response is also observed. Our results show the feasibility of applying such devices for nonlinear processing in ultrafast optical code-division multiple-access and other ultra high-speed optical network applications. |
| Starting Page | 493 |
| Ending Page | 495 |
| Page Count | 3 |
| File Format | PDF HTM / HTML |
| DOI | 10.1109/68.559399 |
| Volume Number | 9 |
| Alternate Webpage(s) | https://engineering.purdue.edu/~fsoptics/articles/Ultrafast_Optical_Thresholding-Zheng.pdf |
| Alternate Webpage(s) | https://doi.org/10.1109/68.559399 |
| Journal | IEEE Photonics Technology Letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
