Optical autocorrelator
US6956652B2 · kind B2 · utility
2Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Jun 5, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J11/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical autocorrelator comprises an optical waveguide (40) of semiconductor material which exhibits two photon absorption at a wavelength at which the autocorrelator is intended to operate. Reflecting means (46) are provided at a part of the waveguide which is remote to an end (42) in which an optical pulse (44) is input for reflecting the optical pulse such as to generate counter-propagating optical pulses in the waveguide. A plurality of electrodes (481-48N) are disposed along the waveguide for measuring a two photon absorption photocurrent (i1-in) generated in the waveguide by the counter-propagating optical pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.