Chip-scale optical resonator enabled synthesizer (CORES) miniature systems for optical frequency synthesis

Bowers, John E.; Beling, Andreas; Blumenthal, D.J.; Bluestone, Aaron; Bowers, Steven M.; Briles, Travis C.; Chang, Lin; Diddams, Scott A.; Fish, G.A.; Guo, Hao; Kippenberg, Tobias J.; Komljenović, Tin; Norberg, Erik; Papp, Scott B.; Pfeiffer, Martin H. P.; Srinivasan, Kartik; Theogarajan, Luke; Vahala, Kerry J.; Volet, Nicolas

doi:10.1109/fcs.2016.7546782

Cited by 14 publications

(3 citation statements)

References 16 publications

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“…The ability to generate ultra-short pulses also with a 1.3 µm pump laser, as demonstrated here, opens up applications in biological and medical imaging as this wavelength represents a compromise between low tissue scattering and absorption due to water. Moreover, such DKS frequency combs with designed spectral envelopes may in the future enable chip integration and miniaturization of self-referenced frequency combs [36] and dual comb CARS [37].…”

Section: Discussionmentioning

confidence: 99%

Octave-spanning dissipative Kerr soliton frequency combs in Si_3N_4 microresonators

Pfeiffer

Herkommer

Liu

et al. 2017

Optica

251

138

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Octave-spanning, self-referenced frequency combs are applied in diverse fields ranging from precision metrology to astrophysical spectrometer calibration. The octave-spanning optical bandwidth is typically generated through nonlinear spectral broadening of femtosecond pulsed lasers. In the past decade, Kerr frequency comb generators have emerged as novel scheme offering chip-scale integration, high repetition rate and bandwidths that are only limited by group velocity dispersion. The recent observation of Kerr frequency combs operating in the dissipative Kerr soliton (DKS) regime, along with dispersive wave formation, has provided the means for fully coherent, broadband Kerr frequency comb generation with engineered spectral envelope. Here, by carefully optimizing the photonic Damascene fabrication process, and dispersion engineering of Si3N4 microresonators with 1 THz free spectral range, we achieve bandwidths exceeding one octave at low powers (O(100 mW)) for pump lasers residing in the telecom C-band (1.55 µm), as well as in the O-band (1.3 µm). Precise dispersion engineering enables emission of two dispersive waves, increasing the power in the spectral ends of the comb, down to a wavelength as short as 850 nm. Equally important, we find that for THz repetition rate comb states, conventional criteria applied to identify DKS comb states fail. Investigating the coherence of generated, octave-spanning Kerr comb states we unambiguously identify DKS states using a response measurement. This allows to demonstrate octave-spanning DKS comb states at both pump laser wavelengths of 1.3 µm and 1.55 µm including the broadest DKS state generated to date, spanning more than 200 THz of optical bandwidth. Octave-spanning DKS frequency combs can form essential building blocks for metrology or spectroscopy, and their operation at 1.3 µm enables applications in biological and medical imaging such as Kerr comb based optical coherence tomography or dual comb coherent anti-stokes Raman scattering.

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Section: Discussionmentioning

confidence: 99%

Octave-spanning dissipative Kerr soliton frequency combs in Si_3N_4 microresonators

Pfeiffer

Herkommer

Liu

et al. 2017

Optica

251

138

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“…The generation of new optical frequencies is powerful and has been widely used. It enabled a vast array of capabilities in optical signal generation and processing, such as switching and demultiplexing of signals at unprecedented speeds, ultrashort pulse measurement and generation, optical synthesizers, clocks, and radiofrequency spectroscopy at terahertz speeds . In the field of quantum computation and communication, nonlinear optical components are widely used to generate entangled photon pairs and to convert the frequency of single photons to telecommunication wavelengths .…”

Section: Introductionmentioning

confidence: 99%

Heterogeneously Integrated GaAs Waveguides on Insulator for Efficient Frequency Conversion

Chang

Boes

Guo

et al. 2018

Laser & Photonics Reviews

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Tremendous scientific progress has been achieved through the development of nonlinear integrated photonics. Prominent examples are Kerr frequency comb generation in microresonators, and supercontinuum generation and frequency conversion in nonlinear photonic waveguides. A high conversion efficiency is enabling for applications of nonlinear optics, including such broad directions as high‐speed optical signal processing, metrology, and quantum communication and computation. In this work, a gallium‐arsenide‐on‐insulator (GaAs) platform for nonlinear photonics is demonstrated. GaAs has among the highest second‐ and third‐order nonlinear optical coefficients, and the use of a silica cladding results in waveguides with a large refractive index contrast and low propagation loss for expanded designs of nonlinear processes. By harnessing these properties and developing nanofabrication with GaAs, a record normalized second‐harmonic efficiency of 13 000% W−1 cm−2 at a fundamental wavelength of 2 µm is reported. This work paves the way for high performance nonlinear photonic integrated circuits, which not only can transition advanced functionalities outside the lab through fundamentally reduced power consumption and footprint, but also enables future optical sources and detectors.

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“…Introduction: Opto-electronic oscillators have greater frequency stability but are oversize [1]. An IC-based Mobius RF oscillator [2] has shown great promise of low phase noise in frequencies of couple GHz, while integrated optical oscillators [3] can easily reach hundreds of GHz, but suffering from poor frequency stability performance. In order to further improve its phase noise performance, multimode laser-based oscillator design using a chip-level optical circuit provides a very promising direction when combined with forced oscillation techniques [4,5].…”

mentioning

confidence: 99%

Self‐mode‐locked multimode lasers for stabilised RF oscillators

Sun

Daryoush

2019

Electron. lett.

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Low phase noise RF oscillator is very important in modern communication systems and opto-electronic oscillator techniques have achieved superior phase noise. Development and characterisation of coupled symmetric multimode multi-section semiconductor laser pairs are reported for building a chip level RF oscillator. The symmetric laser structure operation is adjusted to achieve a self-mode locking of five modes at 26.4 GHz intermodal oscillation frequency with the phase noise performance of −92 dBc/Hz at 10 kHz offset frequency.

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Chip-scale optical resonator enabled synthesizer (CORES) miniature systems for optical frequency synthesis

Cited by 14 publications

References 16 publications

Octave-spanning dissipative Kerr soliton frequency combs in Si_3N_4 microresonators

Octave-spanning dissipative Kerr soliton frequency combs in Si_3N_4 microresonators

Heterogeneously Integrated GaAs Waveguides on Insulator for Efficient Frequency Conversion

Self‐mode‐locked multimode lasers for stabilised RF oscillators

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