wong group, optical nanostructures laboratory, columbia universityxiujian li...

Wong group, Optical Nanostructures Laboratory, Columbia UniversityXiujian Li [email protected]

Phase Conjugation in Silicon waveguide

Xiujian Li

Dec.22, 2011


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First proposed by Va. Zel'dovich and his colleagues in Moscow in 1972, with stimulated Brillouin scattering effect.

Firstly, main applications in free space (spatial):

The forward and the backward light have the same wavefront.

1. What’s phase conjugation


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1. Adaptive Optics;

2. Lensless Imaging;

3. Generating "Time-reversed" Light;

4. Phase-Conjugate Resonators;

5. Image processing;

6. Associative memory;

7. Frequency effect/ shift;

8. Time-Domain Applications (dispersion and nonlinear effect compensation).

2. Applications of phase conjugation


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3. Time- and Spectral-Phase conjugation


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4. Phase conjugation and Four-Wave Mixing


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5. Implement

Hu, H., et al.. Optics Letters, 2010. 35(17): p. 2867-2869.


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6. Next step

1. Design the parameters based on Silicon nano-waveguide;

2. Design the experimental setup based on current setup (for

compression, SPM, and CPM);

3. Observe the frequency distribution via OSA;

4. Observe the phase distribution via FROG / X-FROG.

5. Associated with phase noise and timing jitter.


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7. Referenced setup

wong group, optical nanostructures laboratory, columbia universityxiujian li...

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