| Author(s): |
Lu Deng; Edward W. Hagley; Kaijun Jiang; M Payne; |
| Title: |
A Fast-Responding Nonlinear Phase Shifter Using an Active Raman Gain Core |
| Published: |
Date Unknown |
| Abstract: |
Using a lifetime broadened N-scheme with an active-Raman-gain (ARG) Lambda core, we show that large nonlinear phase shift can be induced without signal wave attenuation. The new scheme is not based on the ultra-slow-wave technique and it does not exhibit the signal wave attenuation or distortion associated with weakly-driven electromagnetically-induced-transparency-based schemes. We show that the signal wave acquires a large nonlinear phase shift and travels with superluminal propagation characteristics. This raises the possibility of rapidly responding nonlinear phase switching and phase gates for information science. |
| Citation: |
Applied Physics Letters |
| Keywords: |
gain medium;nonlinear optics;phase shifter |
| Research Areas: |
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