Slow light with large fractional delays by spectral hole-burning in rubidium vapor

Camacho, Ryan M.; Pack, Michael V.; Howell, John C.

doi:10.1103/physreva.74.033801

Cited by 58 publications

(28 citation statements)

References 16 publications

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“…Numerical solutions are obtained by solving the above pulse-propagation equations from (2) to (6). The results are shown in the following contents.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…It has several advantages including the simplicity, the high pump efficiency, the compatibility with existing telecommunication systems, and room-temperature operation [3], compared with other slow light techniques such as coherent population oscillations [4], electromagnetically induced transparency [5], and saturated absorption [6]. So it has shown that SBS delay line is a promising technique for optical buffers and all-optical switches.…”

Section: Introductionmentioning

confidence: 98%

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Tunable pulse compression via doublet Brillouin gain lines in an optical fiber

et al. 2011

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We study numerically the tunable all-optical pulse compression induced by stimulated Brillouin scattering (SBS) double gain lines for Gaussian, super-Gaussian, and square shaped input pulses in optical fibers. We consider that the steepness of input pulse edges has an influence on the distortion and the broadening or compression factor of output pulses through the SBS-double-gain-line systems. For a Gaussian input pulse the distortion is relatively lower with the pulse compression ratio is only 0.75 in minimum. For a square input pulse the compression ratio can reach to 0.29 in minimum, but the distortion is highest.

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“…Numerical solutions are obtained by solving the above pulse-propagation equations from (2) to (6). The results are shown in the following contents.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Tunable pulse compression via doublet Brillouin gain lines in an optical fiber

et al. 2011

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“…Rapid tuning of the delays has also been demonstrated by varying the modulation frequency in a two-laser, pump-probe configuration. 9 Precise absorption models which fully account for the hyperfine structure can be computationally expensive. Therefore it is often advantageous to approximate the absorption coefficient or complex index of refraction as the summation of Lorentzian lineshapes at a pair of resonant frequencies.…”

Section: Introductionmentioning

confidence: 99%

Slow light in cesium vapor: pulse delay measurements and predicted delay

Anderson

Perram

2010

Advances in Slow and Fast Light III

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“…In ref [83], delays of 2 bit intervals were achieved for a moderate bandwidth of 100 MHz but only in a 40 cm long Rb vapor delay line. Since the background absorption in the hole burning is always high, it is the dispersion of loss that causes the signal distortion and is in fact an ultimate limitation in this scheme.…”

Section: Figure 17 Refractive Index Profile For Slow Light In Eit 20mentioning

confidence: 99%

“…By changing the spectrum of the coupling, for instance, using intensity or frequency modulation, one can change   [83] to achieve the maximum delay without distortion for a given bit rate. In ref [83], delays of 2 bit intervals were achieved for a moderate bandwidth of 100 MHz but only in a 40 cm long Rb vapor delay line.…”

Section: Figure 17 Refractive Index Profile For Slow Light In Eit 20mentioning

confidence: 99%

Single-Photon Nonlinear Optics in Integrated Hollow-Core Waveguides

Schmidt¹,

Hawkins²,

Wu³

et al. 2010

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The overarching goal of the project was to develop a brand new type of miniaturized rubidium (Rb) cells in integrated ARROW waveguides and to demonstrate their use for quantum interference effects such as EIT, slow light, and low-level quantum-optical devices.The project was extraordinarily successful. We successfully demonstrated the first fully self-contained chip-scale atomic spectroscopy chip along with world record slow light on a photonic chip. These results have been disseminated in numerous publications and invited conference presentations (see below), most notably two seminal Nature Photonics articles and an invited review for Laser and Photonics Reviews. Our new technology is attracting growing interest from researchers and media across the globe and has large potential for future expansion and improvement.Two student theses were completed in direct connection with this project. Both are attached here as appendices to provide further details on the methods and results developed under this grant:(a) PhD thesis, Bin Wu (UCSC), Executive summary: A novel integrated optical device based on antiresonant reflecting optical waveguide (ARROW) for atomic spectroscopy was proposed and demonstrated. A new type of hollow-core waveguide called self-aligned pedestal (SAP) waveguides with vastly improved performance developed. The first linear and nonlinear Rb spectroscopy on a photonic chip was demonstrated. The optical density is comparable with the commercially available Rb cell at higher temperatures. Electromagnetically induced transparency (EIT) and the first slow light experiment in atomic vapors on chip are reported. The group velocity of the light pulse was slowed down by a world-record factor of 1,200.(b) M.S. thesis, Don Conkey (BYU), Executive summary: The integration of atomic vapor cells with antiresonant reflecting optical waveguides (ARROWs) fabricated on silicon chips is presented. To demonstrate the effectiveness of the ARROW as a vapor cell, a platform consisting of solid and hollow core waveguides integrated with rubidium vapor cells was developed. A variety of sealing techniques were tested for vapor cell integration with the ARROW chip and for compatibility with rubidium. Liquefied rubidium was transferred from a bulk supply into an on-chip vapor cell in an anaerobic atmosphere glovebox. Optical absorption measurements confirmed the presence of rubidium vapor within the hollow waveguide platform. Further analysis of the measurements revealed high optical density of rubidium atoms in the hollow core. Saturated absorption spectroscopy measurements verified that the on-chip integrated vapor cell was suitable for common precision spectroscopy applications. People involved in project: [5] H. Schmidt, "Atomic spectroscopy on a chip using hollow-core waveguides", Invited Talk [12] H. Schmidt, "Integrated semiconductor chips for EIT", Invited talk, CLEO/QELS conference, Baltimore, MD, May 6-11, 2007.[ In the following pages, we summarize the work carried out in the areas of hollow-core waveguide design,...

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Slow light with large fractional delays by spectral hole-burning in rubidium vapor

Cited by 58 publications

References 16 publications

Tunable pulse compression via doublet Brillouin gain lines in an optical fiber

Tunable pulse compression via doublet Brillouin gain lines in an optical fiber

Slow light in cesium vapor: pulse delay measurements and predicted delay

Single-Photon Nonlinear Optics in Integrated Hollow-Core Waveguides

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