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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2104.13351">arXiv:2104.13351</a> <span> [<a href="https://arxiv.org/pdf/2104.13351">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.033901">10.1103/PhysRevLett.128.033901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Dark-Bright Soliton Bound States in a Microresonator </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Zhang%2C+S">Shuangyou Zhang</a>, <a href="/search/physics?searchtype=author&query=Bi%2C+T">Toby Bi</a>, <a href="/search/physics?searchtype=author&query=Ghalanos%2C+G+N">George N. Ghalanos</a>, <a href="/search/physics?searchtype=author&query=Moroney%2C+N+P">Niall P. Moroney</a>, <a href="/search/physics?searchtype=author&query=Del+Bino%2C+L">Leonardo. Del Bino</a>, <a href="/search/physics?searchtype=author&query=Del%27Haye%2C+P">Pascal Del'Haye</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2104.13351v1-abstract-short" style="display: inline;"> The recent discovery of dissipative Kerr solitons in microresonators has facilitated the development of fully coherent, chip-scale frequency combs. In addition, dark soliton pulses have been observed in microresonators in the normal dispersion regime. Here, we report bound states of mutually trapped dark-bright soliton pairs in a microresonator. The soliton pairs are generated seeding two modes wi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.13351v1-abstract-full').style.display = 'inline'; document.getElementById('2104.13351v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.13351v1-abstract-full" style="display: none;"> The recent discovery of dissipative Kerr solitons in microresonators has facilitated the development of fully coherent, chip-scale frequency combs. In addition, dark soliton pulses have been observed in microresonators in the normal dispersion regime. Here, we report bound states of mutually trapped dark-bright soliton pairs in a microresonator. The soliton pairs are generated seeding two modes with opposite dispersion but with similar group velocities. One laser operating in the anomalous dispersion regime generates a bright soliton microcomb, while the other laser in the normal dispersion regime creates a dark soliton via Kerr-induced cross-phase modulation with the bright soliton. Numerical simulations agree well with experimental results and reveal a novel mechanism to generate dark soliton pulses. The trapping of dark and bright solitons can lead to light states with the intriguing property of constant output power while spectrally resembling a frequency comb. These results can be of interest for telecommunication systems, frequency comb applications, ultrafast optics and soliton states in atomic physics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.13351v1-abstract-full').style.display = 'none'; document.getElementById('2104.13351v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2101.10170">arXiv:2101.10170</a> <span> [<a href="https://arxiv.org/pdf/2101.10170">pdf</a>, <a href="https://arxiv.org/format/2101.10170">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.124.223901">10.1103/PhysRevLett.124.223901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Kerr-Nonlinearity-Induced Mode-Splitting in Optical Microresonators </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ghalanos%2C+G+N">George N. Ghalanos</a>, <a href="/search/physics?searchtype=author&query=Silver%2C+J+M">Jonathan M. Silver</a>, <a href="/search/physics?searchtype=author&query=Del+Bino%2C+L">Leonardo Del Bino</a>, <a href="/search/physics?searchtype=author&query=Moroney%2C+N">Niall Moroney</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+S">Shuangyou Zhang</a>, <a href="/search/physics?searchtype=author&query=Woodley%2C+M+T+M">Michael T. M. Woodley</a>, <a href="/search/physics?searchtype=author&query=Svela%2C+A+%C3%98">Andreas 脴. Svela</a>, <a href="/search/physics?searchtype=author&query=Del%27Haye%2C+P">Pascal Del'Haye</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2101.10170v1-abstract-short" style="display: inline;"> The Kerr effect in optical microresonators plays an important role for integrated photonic devices and enables third harmonic generation, four-wave mixing, and the generation of microresonator-based frequency combs. Here we experimentally demonstrate that the Kerr nonlinearity can split ultra-high-Q microresonator resonances for two continuous-wave lasers. The resonance splitting is induced by sel… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.10170v1-abstract-full').style.display = 'inline'; document.getElementById('2101.10170v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2101.10170v1-abstract-full" style="display: none;"> The Kerr effect in optical microresonators plays an important role for integrated photonic devices and enables third harmonic generation, four-wave mixing, and the generation of microresonator-based frequency combs. Here we experimentally demonstrate that the Kerr nonlinearity can split ultra-high-Q microresonator resonances for two continuous-wave lasers. The resonance splitting is induced by self- and cross-phase modulation and counter-intuitively enables two lasers at different wavelengths to be simultaneously resonant in the same microresonator mode. We develop a pump-probe spectroscopy scheme that allows us to measure power dependent resonance splittings of up to 35 cavity linewidths (corresponding to 52 MHz) at 10 mW of pump power. The required power to split the resonance by one cavity linewidth is only 286$渭$W. In addition, we demonstrate threefold resonance splitting when taking into account four-wave mixing and two counterpropagating probe lasers. These Kerr splittings are of interest for applications that require two resonances at optically controlled offsets, eg. for opto-mechanical coupling to phonon modes, optical memories, and precisely adjustable spectral filters. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.10170v1-abstract-full').style.display = 'none'; document.getElementById('2101.10170v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters 124, 223901 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.13578">arXiv:2004.13578</a> <span> [<a href="https://arxiv.org/pdf/2004.13578">pdf</a>, <a href="https://arxiv.org/format/2004.13578">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1109/JLT.2020.2975119">10.1109/JLT.2020.2975119 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Logic Gates based on Interaction of Counterpropagating Light in Microresonators </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Moroney%2C+N">Niall Moroney</a>, <a href="/search/physics?searchtype=author&query=Del+Bino%2C+L">Leonardo Del Bino</a>, <a href="/search/physics?searchtype=author&query=Woodley%2C+M+T+M">Michael T. M. Woodley</a>, <a href="/search/physics?searchtype=author&query=Ghalanos%2C+G+N">George N. Ghalanos</a>, <a href="/search/physics?searchtype=author&query=Silver%2C+J+M">Jonathan M. Silver</a>, <a href="/search/physics?searchtype=author&query=Svela%2C+A+%C3%98">Andreas 脴 Svela</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+S">Shuangyou Zhang</a>, <a href="/search/physics?searchtype=author&query=Del%27Haye%2C+P">Pascal Del'Haye</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2004.13578v1-abstract-short" style="display: inline;"> Optical logic has the potential to replace electronics with photonic circuits in applications for which optic-to-electronic conversion is impractical and for integrated all-optical circuits. Nonlinear optics in whispering gallery mode resonators provides low power, scalable methods to achieve optical logic. We demonstrate, for the first time, an all-optical, universal logic gate using counterpropa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.13578v1-abstract-full').style.display = 'inline'; document.getElementById('2004.13578v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.13578v1-abstract-full" style="display: none;"> Optical logic has the potential to replace electronics with photonic circuits in applications for which optic-to-electronic conversion is impractical and for integrated all-optical circuits. Nonlinear optics in whispering gallery mode resonators provides low power, scalable methods to achieve optical logic. We demonstrate, for the first time, an all-optical, universal logic gate using counterpropagating light in which all signals have the same operating optical frequency. Such a device would make possible the routing of optical signals without the need for conversion into the electronic domain, thus reducing latency. The operating principle of the device is based on the Kerr interaction between counter-propagating beams in a whispering gallery mode resonator which induces a splitting between the resonance frequencies for the two propagating directions. Our gate uses a fused silica microrod resonator with a \textit{Q}-factor of $\SI{2e8}{}$. This method of optical logic gives a practical solution to the on-chip routing of light. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.13578v1-abstract-full').style.display = 'none'; document.getElementById('2004.13578v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Lightwave Technology, vol. 38, no. 6, pp. 1414-1419, 15 March15, 2020 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2001.05479">arXiv:2001.05479</a> <span> [<a href="https://arxiv.org/pdf/2001.05479">pdf</a>, <a href="https://arxiv.org/format/2001.05479">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> </div> <p class="title is-5 mathjax"> A Nonlinear Enhanced Microresonator Gyroscope </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Silver%2C+J+M">Jonathan M. Silver</a>, <a href="/search/physics?searchtype=author&query=Del+Bino%2C+L">Leonardo Del Bino</a>, <a href="/search/physics?searchtype=author&query=Woodley%2C+M+T+M">Michael T. M. Woodley</a>, <a href="/search/physics?searchtype=author&query=Ghalanos%2C+G+N">George N. Ghalanos</a>, <a href="/search/physics?searchtype=author&query=Svela%2C+A+%C3%98">Andreas 脴. Svela</a>, <a href="/search/physics?searchtype=author&query=Moroney%2C+N">Niall Moroney</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+S">Shuangyou Zhang</a>, <a href="/search/physics?searchtype=author&query=Grattan%2C+K+T+V">Kenneth T. V. Grattan</a>, <a href="/search/physics?searchtype=author&query=Del%27Haye%2C+P">Pascal Del'Haye</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2001.05479v1-abstract-short" style="display: inline;"> We demonstrate a novel optical microresonator gyroscope whose responsivity to rotation is enhanced by a factor of around $10^4$ by operating close to the critical point of a spontaneous symmetry breaking transition between counterpropagating light. We present a proof-of-principle rotation measurement using a resonator with a diameter of 3 mm. In addition, we characterise the dynamical response of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.05479v1-abstract-full').style.display = 'inline'; document.getElementById('2001.05479v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.05479v1-abstract-full" style="display: none;"> We demonstrate a novel optical microresonator gyroscope whose responsivity to rotation is enhanced by a factor of around $10^4$ by operating close to the critical point of a spontaneous symmetry breaking transition between counterpropagating light. We present a proof-of-principle rotation measurement using a resonator with a diameter of 3 mm. In addition, we characterise the dynamical response of the system to a sinusoidally varying rotation, and show this to be well described by a simple theoretical model. We observe the universal critical behaviors of responsivity enhancement and critical slowing down, both of which are beneficial in an optical gyroscope. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.05479v1-abstract-full').style.display = 'none'; document.getElementById('2001.05479v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 3 figures</span> </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> 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