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Slow Light Near Two Absorbing Rb Resonances

Ryan M. Camacho, Michael Vern Pack, John C. Howell

We consider group delay and broadening using two strongly absorbing resonances. Large pulse bandwidths and large group delays with small broadening are achieved. We report up to 50 pulse delays with 40 % broadening.

Frontiers in OpticsJan 1, 20060 citations

Implementations of slow light using double-resonances

Ryan M. Camacho

Thesis (Ph. D.)--University of Rochester. Dept. of Physics and Astronomy, 2008.

Jan 1, 20080 citations

Low-distortion slow light using two absorption resonances

Ryan M. Camacho, Michael Vern Pack, John C. Howell

We consider group delay and broadening using two strongly absorbing and widely spaced resonances. We derive relations which show that very large pulse bandwidths coupled with large group delays and small broadening can be achieved. Unlike single resonance systems, the dispersive broadening dominates the absorptive broadening which leads to a dramatic increase in the possible group delay. We show that the double resonance systems are excellent candidates for realizing all-optical delay lines. We report on an experiment which achieved up to 50 pulse delays with 40% broadening.We consider group delay and broadening using two strongly absorbing and widely spaced resonances. We derive relations which show that very large pulse bandwidths coupled with large group delays and small broadening can be achieved. Unlike single resonance systems, the dispersive broadening dominates the absorptive broadening which leads to a dramatic increase in the possible group delay. We show that the double resonance systems are excellent candidates for realizing all-optical delay lines. We report on an experiment which achieved up to 50 pulse delays with 40% broadening.

arXiv:physics/0607055Physical Review AJun 13, 2006105 citations

Study of the Coupled-Resonator Slow Light Structures and Their Applications

周瑾 Zhou Jin, 谷玲玲 Gu Lingling, 于伟坤 Yu Weikun +3 more

Laser & Optoelectronics ProgressJan 1, 20110 citations

High-Power Low-Noise Fiber Brillouin Amplifier for Tunable Slow-Light Delay Buffer

Liang Xing, Li Zhan, Shouyu Luo +1 more

A high-power low-noise fiber Brillouin amplifier (FBA) has been demonstrated for slow-light delay buffer. Its features including gain, gain saturation, and noise figure (NF), have been characterized. Among them, the gain saturation is highlighted because it is a fundamental limitation for FBA-based slow-light buffer. It is testified that the gain saturation is more easily achieved for lower signal-to-pump ratio (SPR), and the NF is reduced at higher pump level when below Brillouin threshold. The experiment demonstrated that up to 20-ns delay enhancement could be obtained in this high-power FBA for a -30-dBm input signal, as well as with low NF. Besides, the analysis on how the performance of the high power FBA affects the slow-light delay buffer has been presented.A high-power low-noise fiber Brillouin amplifier (FBA) has been demonstrated for slow-light delay buffer. Its features including gain, gain saturation, and noise figure (NF), have been characterized. Among them, the gain saturation is highlighted because it is a fundamental limitation for FBA-based slow-light buffer. It is testified that the gain saturation is more easily achieved for lower signal-to-pump ratio (SPR), and the NF is reduced at higher pump level when below Brillouin threshold. The experiment demonstrated that up to 20-ns delay enhancement could be obtained in this high-power FBA for a -30-dBm input signal, as well as with low NF. Besides, the analysis on how the performance of the high power FBA affects the slow-light delay buffer has been presented.

IEEE Journal of Quantum ElectronicsNov 25, 200841 citations

Slow light and fast light in microfiber double-knot resonator with a parallel structure

Yiping Xu, Liyong Ren, Chengju Ma +2 more

Based on the theoretical model of a microfiber double-knot resonator with a parallel structure, numerical simulations on the transmission spectrum, the phase, and the group time delay of the resonator as a function of wavelengths are given. We find that with this kind of resonator both slow light and fast light can be obtained at different resonant wavelengths. Experimentally, such a kind of microfiber resonator was fabricated successfully. The transmission spectrum of the fabricated resonator is well consistent with the theoretical simulation. A slow-light delay of about 38 ps and a fast-light advance of about 40 ps are demonstrated at different wavelengths, which might benefit the resonator to the applications in data delay lines, optical buffers, and optical memories.Based on the theoretical model of a microfiber double-knot resonator with a parallel structure, numerical simulations on the transmission spectrum, the phase, and the group time delay of the resonator as a function of wavelengths are given. We find that with this kind of resonator both slow light and fast light can be obtained at different resonant wavelengths. Experimentally, such a kind of microfiber resonator was fabricated successfully. The transmission spectrum of the fabricated resonator is well consistent with the theoretical simulation. A slow-light delay of about 38 ps and a fast-light advance of about 40 ps are demonstrated at different wavelengths, which might benefit the resonator to the applications in data delay lines, optical buffers, and optical memories.

Applied OpticsOct 18, 20166 citations

Implementations of double-resonance slow light

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Implementations of double-resonance slow light

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