Achieving a high level of pulsed squeezing, in a platform which offers integration and stability, is a key requirement for continuous-variable quantum information processing. Typically highly squeezed states are achieved with narrow band optical cavities and bulk crystals, limiting scalability. Using single-pass parametric down conversion in an integrated optical device, we demonstrate quadrature squeezing of picosecond pulses in a thin-film lithium niobate strip-loaded waveguide. For on-chip peak powers of less than 0.3 W, we measure up to -0.33 +/- 0.07 dB of squeezing with an inferred on-chip value of -1.7 +/- 0.4 dB. This work highlights the potential of the strip-loaded waveguide platform for broadband squeezing applications and the development of photonic quantum technologies.

Picosecond pulsed squeezing in thin-film lithium niobate strip-loaded waveguides at telecommunication wavelengths / Peace, Daniel; Zappacosta, Alexander; Cernansky, Robert; Haylock, Ben; Boes, Andreas; Mitchell, Arnan; Lobino, Mirko. - In: JPHYS PHOTONICS. - ISSN 2515-7647. - ELETTRONICO. - 4:3(2022), p. 035002. [10.1088/2515-7647/ac80e2]

Picosecond pulsed squeezing in thin-film lithium niobate strip-loaded waveguides at telecommunication wavelengths

Lobino, Mirko
Ultimo
2022-01-01

Abstract

Achieving a high level of pulsed squeezing, in a platform which offers integration and stability, is a key requirement for continuous-variable quantum information processing. Typically highly squeezed states are achieved with narrow band optical cavities and bulk crystals, limiting scalability. Using single-pass parametric down conversion in an integrated optical device, we demonstrate quadrature squeezing of picosecond pulses in a thin-film lithium niobate strip-loaded waveguide. For on-chip peak powers of less than 0.3 W, we measure up to -0.33 +/- 0.07 dB of squeezing with an inferred on-chip value of -1.7 +/- 0.4 dB. This work highlights the potential of the strip-loaded waveguide platform for broadband squeezing applications and the development of photonic quantum technologies.
2022
3
Peace, Daniel; Zappacosta, Alexander; Cernansky, Robert; Haylock, Ben; Boes, Andreas; Mitchell, Arnan; Lobino, Mirko
Picosecond pulsed squeezing in thin-film lithium niobate strip-loaded waveguides at telecommunication wavelengths / Peace, Daniel; Zappacosta, Alexander; Cernansky, Robert; Haylock, Ben; Boes, Andreas; Mitchell, Arnan; Lobino, Mirko. - In: JPHYS PHOTONICS. - ISSN 2515-7647. - ELETTRONICO. - 4:3(2022), p. 035002. [10.1088/2515-7647/ac80e2]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/357643
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