High power and high SFDR frequency conversion using sum frequency generation in KTP waveguides

Barbour, R. James; Brewer, Tyler; Barber, Zeb W.

doi:10.1364/ol.41.003639

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…1 does not apply to the case of a finite-bandwidth input signal. In general, the broadband response is not simply the superposition of the response at individual frequencies due to cascaded mixing among different tones that make up the signal and idler waves [14]. Parasitic multi-tone mixing leeches energy from the desired signal → idler → signal process, and generates spurious tones that interfere with the signals being routed by the circulator.…”

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confidence: 99%

Fundamental limits to signal integrity in nonlinear parametric optical circulators

Williamson¹,

Wang²

2017

Preprint

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We characterize the response of a parametric nonlinear optical circulator to realistic signals that have finite bandwidths. Our results show that intermodulation distortion (IMD), rather than pump depletion or compression, limits the maximal operating signal power and the dynamic range of nonlinear parametric circulators. This limitation holds even in the undepleted pump regime where nonlinear circulators are not constrained by dynamic reciprocity. With a realistic pump power, noise floor, and nonlinear waveguide, our numerical modeling demonstrates a maximally achievable spur-free dynamic range (SFDR) of 81 dB.

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confidence: 99%

Fundamental limits to signal integrity in nonlinear parametric optical circulators

Williamson¹,

Wang²

2017

Preprint

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Wideband and low-spurious optical waveform generator for optically addressable quantum systems manipulation and control

Welinski,

Beattie,

Ulrich

et al. 2024

Opt. Express

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Optical manipulation of quantum systems requires stable laser sources able to produce complex waveforms over a large frequency range. In the visible region, such waveforms can be generated using an acousto-optic modulator driven by an arbitrary waveform generator, but these suffer from a limited tuning range typically of a few tens of MHz. Visible-range electro-optic modulators are an alternative option offering a larger modulation bandwidth, however they have limited output power which drastically restricts the scalability of quantum applications. There is currently no architecture able to perform phase-stabilized waveforms over several GHz in the visible or near infrared region while providing sufficient optical power for quantum applications. Here we propose and develop a modulation and frequency conversion set-up able to deliver optical waveforms over a large frequency range, with a high spurious extinction ratio, scalable to the entire visible/near infrared region with high optical power. The optical waveforms are first generated at telecom wavelength and then converted to the emitter wavelength through a sum frequency generation process. By adapting the pump laser frequency, the optical waveforms can be tuned to interact with a broad range of optical quantum emitters or qubits such as alkali atoms, trapped ions, rare earth ions, or fluorescent defects in solid-state matrices. Using this architecture, we were able to detect and study a single erbium ion in a nanoparticle. We also generated high bandwidth signals at 606 nm, which would enable frequency multiplexing of on-demand read-out Pr3+:Y2SiO5 quantum memories.

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High power and high SFDR frequency conversion using sum frequency generation in KTP waveguides

Cited by 2 publications

References 7 publications

Fundamental limits to signal integrity in nonlinear parametric optical circulators

Fundamental limits to signal integrity in nonlinear parametric optical circulators

Wideband and low-spurious optical waveform generator for optically addressable quantum systems manipulation and control

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