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Coherent Raman scattering interaction in hydrogen gas-filled hollow core photonic crystal fibres

Thai Doan Thanh, Ho Quang Quy, Nguyen Manh Thang

OptikFeb 13, 20183 citations

Ultra-long-lived molecular coherence in hydrogen filled hollow-core photonic crystal fiber

Yingying Wang, Couny, Mangan +1 more

Conference on Lasers and Electro-OpticsJan 1, 20101 citation

Electromagnetically induced transparency and saturable absorption in all-fiber devices based on 12C2H2-filled hollow-core photonic crystal fiber

F. Couny, P. S. Light, Fetah Benabid +1 more

Optics CommunicationsJan 20, 200649 citations

Octave-spanning quantum frequency conversion using cascaded Raman shifts in H2-filled hollow core photonic crystal fibers

Walker D. Larson, C De Keyser, Trevor Courtney +1 more

Efficient quantum frequency conversion (QFC) across large spectral gaps remains a challenge for quantum networking. We theoretically investigate a cascaded QFC in hydrogen-filled hollow-core photonic crystal fiber (HC-PCF) to convert telecom photons (1550 nm) to the visible spectrum (676 nm) via two anti-Stokes Raman shifts. Although simultaneous phase matching is impractical across such a wide window, operating in a high-pressure regime overcomes phase mismatches because the high-gain Raman coherence wave has a shorter spatial extent than the nonlinear coherence length. Maxwell-Bloch simulations show conversion efficiencies exceeding 50%. This approach offers a flexible, low-loss path for integrating disparate quantum technologies in a single fiber platform.Efficient quantum frequency conversion (QFC) across large spectral gaps remains a challenge for quantum networking. We theoretically investigate a cascaded QFC in hydrogen-filled hollow-core photonic crystal fiber (HC-PCF) to convert telecom photons (1550 nm) to the visible spectrum (676 nm) via two anti-Stokes Raman shifts. Although simultaneous phase matching is impractical across such a wide window, operating in a high-pressure regime overcomes phase mismatches because the high-gain Raman coherence wave has a shorter spatial extent than the nonlinear coherence length. Maxwell-Bloch simulations show conversion efficiencies exceeding 50%. This approach offers a flexible, low-loss path for integrating disparate quantum technologies in a single fiber platform.

Oct 20, 20260 citations

Octave-spanning quantum frequency conversion using cascaded Raman shifts in H2-filled hollow core photonic crystal fibers

Walker D. Larson, C De Keyser, Trevor Courtney +1 more

Efficient quantum frequency conversion (QFC) across large spectral gaps remains a challenge for quantum networking. We theoretically investigate a cascaded QFC in hydrogen-filled hollow-core photonic crystal fiber (HC-PCF) to convert telecom photons (1550 nm) to the visible spectrum (676 nm) via two anti-Stokes Raman shifts. Although simultaneous phase matching is impractical across such a wide window, operating in a high-pressure regime overcomes phase mismatches because the high-gain Raman coherence wave has a shorter spatial extent than the nonlinear coherence length. Maxwell-Bloch simulations show conversion efficiencies exceeding 50%. This approach offers a flexible, low-loss path for integrating disparate quantum technologies in a single fiber platform.Efficient quantum frequency conversion (QFC) across large spectral gaps remains a challenge for quantum networking. We theoretically investigate a cascaded QFC in hydrogen-filled hollow-core photonic crystal fiber (HC-PCF) to convert telecom photons (1550 nm) to the visible spectrum (676 nm) via two anti-Stokes Raman shifts. Although simultaneous phase matching is impractical across such a wide window, operating in a high-pressure regime overcomes phase mismatches because the high-gain Raman coherence wave has a shorter spatial extent than the nonlinear coherence length. Maxwell-Bloch simulations show conversion efficiencies exceeding 50%. This approach offers a flexible, low-loss path for integrating disparate quantum technologies in a single fiber platform.

Oct 20, 20260 citations

Supercontinuum up-conversion via molecular modulation in gas-filled hollow-core PCF

S. T. Bauerschmidt, David Novoa, Barbara M. Trabold +2 more

We report on the efficient, tunable, and selective frequency up-conversion of a supercontinuum spectrum via molecular modulation in a hydrogen-filled hollow-core photonic crystal fiber. The vibrational Q(1) Raman transition of hydrogen is excited in the fiber by a pump pre-pulse, enabling the excitation of a synchronous, collective oscillation of the molecules. This coherence wave is then used to up-shift the frequency of an arbitrarily weak, delayed probe pulse. Perfect phase-matching for this process is achieved by using higher order fiber modes and adjusting the pressure of the filling gas. Conversion efficiencies of ~50% are obtained within a tuning range of 25 THz.We report on the efficient, tunable, and selective frequency up-conversion of a supercontinuum spectrum via molecular modulation in a hydrogen-filled hollow-core photonic crystal fiber. The vibrational Q(1) Raman transition of hydrogen is excited in the fiber by a pump pre-pulse, enabling the excitation of a synchronous, collective oscillation of the molecules. This coherence wave is then used to up-shift the frequency of an arbitrarily weak, delayed probe pulse. Perfect phase-matching for this process is achieved by using higher order fiber modes and adjusting the pressure of the filling gas. Conversion efficiencies of ~50% are obtained within a tuning range of 25 THz.

Optics ExpressAug 18, 201416 citations

Supplement 1: Broadband-tunable LP01 mode frequency shifting by Raman coherence waves in a H2-filled hollow-core photonic crystal fiber

Abstract

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Supplement 1: Broadband-tunable LP01 mode frequency shifting by Raman coherence waves in a H2-filled hollow-core photonic crystal fiber

Abstract

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