Spectral Mirror Imaging in Ultrafast Optical Parametric Processes
- Slides: 17
Spectral Mirror Imaging in Ultrafast Optical Parametric Processes Chenji Gu, Boaz Ilan, Jay E. Sharping, Univ. of California at Merced, USA AFOSR Young Investigator Program jsharping@ucmerced. edu
Outline • Spectral Mirror Imaging (SMI) • Relation with Temporal Phase Conjugation • An SMI system • Fiber (third-order nonlinearity) Optical Parametric Processes • Performance of an SMI system • Both experiments and simulations jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 1/12
Spectral Mirror Imaging • SMI is a spectral realization of Temporal Phase Conjugation. jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 2/12
Concept of SMI • • Electric fields of pulses: • -- slowly varying complex envelops • -- rapidly varying carrier waves Spectra of pulses: • -- the spectra of each pulse jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 3/12
Concept of SMI • • • SMI: Temporal Phase Conjugation: Relation: jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 3/12
Spectral Mirror Imaging • SMI is a spectral realization of Temporal Phase Conjugation. jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 2/12
Prior work on Temporal Phase Conjugation I • Watanabe, S. , et al, “Compensation of chromatic dispersion in a single-mode fiber by optical phase conjugation”. IEEE Photonics Technol. Lett. 5, 92 (1993). Merely using the concept of phase conjugation for other applications rather than understanding fundamental principles. • A. H. Gnauck, et al, “ 10 -Gb/s 360 -km transmission over dispersive fiber using midsystem spectral inversion”. IEEE Photon. Technol. Lett. 5 (6), 663 (1993). jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 4/12
Prior work on Temporal Phase Conjugation II • Mori, K. , et al, “M. Wavelengthshift-free spectral inversion with an optical parametric loop mirror”. Opt. Lett. 21, 110 (1996). jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 5/12
Prior work on Temporal Phase Conjugation II • Inoue, K. “Spectral inversion with no wavelength shift based on four-wave mixing with orthogonal pump beams”. Opt. Lett. 22, 1772 (1997). jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 5/12
Comparison with our work: Prior work on Temporal Phase Conjugation III • Spectral reversal with tunable wavelength offset • First to report and carefully study spectral realizations of temporal phase conjugation: • The physical mechanisms of SMI • Experimentally demonstration with simulation support jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 6/12
An SMI system • Fiber optical parametric processes jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 7/12
Analytic solutions for the physics of SMI • Two assumptions: • • Undepleted pump Phase matching condition met: (*) (i) Temporal Phase Conjugation • jsharping@ucmerced. edu -- SMI Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 8/12
An SMI system • Fiber-based pulsed optical parametric processes. Adjustable delay jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 9/12
A picosecond FOPO Adjustable delay jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 10/12
Conclusion • Spectral Mirror Imaging- SMI • Spectral realization of optical phase conjugation • A measurable connection between the temporal and spectral properties of correlated optical fields. jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 11/12
Acknowledgement • Thanks to Prof. Kenneth K. Y. Wong for the discussion. jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012 – p. 12/12
jsharping@ucmerced. edu Spectral Mirror Imaging in Ultrafast Optical Parametric Processes QF 2 G. 8 , CLEO 2012
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