Abstract
We report a novel optical spectral phase correlation scheme for coded ultrashort pulses based on the use of long periodically poled lithium niobate second harmonic generation waveguides. Second harmonic efficiency as high as 50 %/pJ was obtained, which allowed us to demonstrate nonlinear detection of individual pulses at 0.25 pJ input energies over a 500-MHz detection bandwidth with >50 : 1 signal-to-noise ratio. These results offer the possibility of sub-pJ real-time operation of such devices as nonlinear receivers in ultrashort-pulse optical code-division multiple-access (CDMA) networks.
| Original language | English |
|---|---|
| Pages (from-to) | 376-378 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 13 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 2001 |
| Externally published | Yes |
Keywords
- Code division multiaccess
- Nonlinear optics
- Optical fiber communication
- Optical propagation in nonlinear media
- Optical pulse shaping
- Optical signal processing
- Optical waveguide components
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