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Ultrafast two-photon absorption optical thresholding of spectrally coded pulses
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zheng, Zheng Shen, Shuai Sardesai, Harshad P. Chang, C.-C. Marsh, John H. Karkhanehchi, Mohammad Mehdi Weiner, Andrew M. |
| Copyright Year | 1999 |
| Abstract | We report studies on two-photon absorption (TPA) GaAs p-i-n waveguide photodetectors as optical thresholders for proposed ultrashort pulse optical code-division multiple-access (CDMA) systems. For either chirped optical pulses or spectrally phase coded pseudonoise bursts, the TPA photocurrent response reveals a strong pulseshape dependence and shows good agreement with theoretical predictions and results from conventional SHG measurements. The performance limits of the TPA optical thresholders set by the encoded bandwidth in the spectral encoding-decoding process are also discussed based on numerical simulations. Our results show the feasibility of applying such devices as nonlinear intensity discriminators in ultrahigh-speed optical network applications. |
| Starting Page | 225 |
| Ending Page | 233 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/S0030-4018(99)00313-2 |
| Volume Number | 167 |
| Alternate Webpage(s) | https://engineering.purdue.edu/~fsoptics/articles/Ultrafast_Two-Photon_Absorption-Zheng.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/S0030-4018%2899%2900313-2 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
