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Custom PPLNHere at Covesion we are constantly updating our technical documents and publications database to ensure our customers have all the up to date resources they need. In addition our engineers and customer support team are always on hand to provide any further information you may require.
This Covesion guide to PPLN is aimed at providing some background information about PPLN, from second order nonlinear optics to tips on how to use PPLN.
Read articleThis Covesion guide to PPLN is aimed at providing some background information about PPLN, from second order nonlinear optics to tips on how to use PPLN.
Read article Download full paperThis Covesion guide to PPLN is aimed at providing some background information about PPLN, from second order nonlinear optics to tips on how to use PPLN.
Read articleThis Covesion guide to PPLN is aimed at providing some background information about PPLN, from second order nonlinear optics to tips on how to use PPLN.
Read articleThis Covesion guide to PPLN is aimed at providing some background information about PPLN, from second order nonlinear optics to tips on how to use PPLN.
Read article“Cold atoms” can be used as ultra-sensitive sensors for measuring…
Read article Download full paperPeriodically poled lithium niobate (PPLN) waveguides are a proven and…
Read article Download full paperWe present the design and characterization of a zinc-indiffused periodically…
Read article Download full paperQuantum-enhanced optical systems operating within the 2- to 2.5-um spectral…
Read article Download full paperExperimental data collection methods and a corresponding numerical model are…
Read article Download full paperWe present a metallic zinc indiffused diced ridge waveguide in…
Read article Download full paperMid-infrared dual-comb spectroscopy has the potential to supplant conventional Fourier-transform…
Read article Download full paperMultiphoton microscopy combined with genetically encoded fluorescent indicators is a…
Read article Download full paperWe demonstrate a robust, compact, portable and efficient upconversion detector…
Read article Download full paperTechniques for the distribution of quantum-secured cryptographic keys have reached…
Read article Download full paperA tunable mid-infrared frequency comb was created via difference frequency…
Read article Download full paperTunable narrow-band short-pulse coherent emission can be generated by the…
Read article Download full paperIn this Letter, we demonstrate efficient room temperature detection of…
Read article Download full paperCoherent beam combining (CBC) by active phase control could be…
Read article Download full paperWe report on the generation of nanosecond mid-infrared pulses having…
Read article Download full paperSummary form only given. Advances in the research fields of…
Read article Download full paperWe demonstrate a broadband mid-infrared (MIR) frequency comb source based…
Read article Download full paperWith the rapid progress in fiber technologies, femtosecond fiber lasers,…
Read article Download full paperWe present results of high average power mid-infrared (mid-IR) generation…
Read article Download full paperWe report the preparation of narrow-linewidth 637.2 nm laser device…
Read article Download full paperWe report multi-Watt-level average power 3.28-3.45 ?m difference frequency generation…
Read article Download full paperWe present a 100 kHz 2D IR spectrometer. The system…
Read article Download full paperFiber transport of multi-dimensional photonic qudits promises high information capacity…
Read article Download full paperWe investigate the potential for power scaling of 975 nm…
Read article Download full paperWe demonstrate dual-comb spectroscopy based on difference frequency generation of…
Read article Download full paperPtychographic Coherent diffractive imaging (PCDI) is a significant advance in…
Read article Download full paperWe present results on high-average power difference frequency generation of…
Read article Download full paperWe demonstrate a passively synchronized two-color pulsed fiber laser with…
Read article Download full paperSo far, Ti:Sapphire-based frequency comb systems required complex bulk green…
Read article Download full paperCoherent frequency conversion of structured light, i.e. the ability to…
Read article Download full paperHigh-precision spectroscopy on the 2 3Sμ2 1S transition is possible…
Read article Download full paperWe demonstrate narrowband cw injection seeding of a femtosecond double-pass…
Read article Download full paperWe report on a miniature fiber-optic multiphoton microscopy (MPM) system…
Read article Download full paperFor the first time an upconversion based detection scheme is…
Read article Download full paperThe maturation of many photonic technologies from individual components to…
Read article Download full paperFirst demonstration of a dissipative soliton resonance (DSR), double-clad (DC)…
Read article Download full paperMid-infrared femtosecond optical frequency combs were produced by difference frequency…
Read article Download full paperWe present different methods of generating light in the blue-green…
Read article Download full paperWe demonstrate the generation of high-energy, mid-IR, picosecond pulses in…
Read article Download full paperWe report a high-energy picosecond optical parametric generator/amplifier (OPG/A) based…
Read article Download full paperTransition frequencies between low-lying energy levels in a single trapped…
Read article Download full paperThe development of a novel broadband and tunable optical parametric…
Read article Download full paperThis work presents the proof of concept of a remote…
Read article Download full paperWe present a highly stable and compact laser source for…
Read article Download full paperWe demonstrate mid-infrared dual-comb spectroscopy with an optical parametric oscillator…
Read article Download full paperWe demonstrate a concept for visible laser sources based on…
Read article Download full paperMulti-mode absorption spectroscopy of ammonia and methane at 3.3 ?m…
Read article Download full paperWe report on a precisely tunable and highly stable femtosecond…
Read article Download full paperAn idler-resonant femtosecond optical parametric oscillator (OPO) with near-diffraction-limited beam…
Read article Download full paperThis paper reports the high-accuracy Sellmeier and thermo-optic dispersion formulas…
Read article Download full paperContinuous variable quantum states of light are used in quantum…
Read article Download full paperWe report the realization of a fibred polarization entangled photon-pair…
Read article Download full paperWe demonstrate a highly efficient double pass optical parametric generator…
Read article Download full paperWe present a femtosecond optical parametric oscillator (OPO) containing two…
Read article Download full paperWe report on an optical parametric amplifier at high repetition…
Read article Download full paperWe demonstrate a compact photon pair source based on a…
Read article Download full paperStimulated Raman Scattering microscopy allows label-free chemical imaging and has…
Read article Download full paperWe report our recent progress on fabricating dehydrated tellurite glass…
Read article Download full paperWe demonstrate a compact mid-infrared (mid-IR) radiation source based on…
Read article Download full paperWe report the fabrication of new dehydrated halo-tellurite glass fibers…
Read article Download full paperWe present squeezing and anti-squeezing spectra of the output from…
Read article Download full paperWe describe laser systems for photoionization, Doppler cooling, and quantum…
Read article Download full paperLow noise upconversion of IR images by three-wave mixing, can…
Read article Download full paperWe report on the design and development of a new…
Read article Download full paper3-D profiles of discontinuous surfaces patterned with high step structures…
Read article Download full paperWe demonstrate high-efficiency frequency doubling of the combined output of…
Read article Download full paperStorage and cooling of highly charged ions require ultra-high vacuum…
Read article Download full paperWe report a degenerate femtosecond optical parametric oscillator (OPO) that…
Read article Download full paperStudies into the suitability of a novel, widely tunable telecom…
Read article Download full paperContinuing studies into an all-diode laser-based 3.3µm difference frequency generation…
Read article Download full paperThe spectral imaging and detection of mid-infrared wavelengths is emerging…
Read article Download full paperWe propose the collinear balanced detection (CBD) technique for noise…
Read article Download full paperWe present a narrow linewidth continuous laser source with over…
Read article Download full paperWe present a hybrid laser system based on all-fiber amplification…
Read article Download full paperAn optical parametric oscillator has been designed on the basis…
Read article Download full paperWe investigate the performance of a magnesium-oxide-doped periodically poled lithium…
Read article Download full paperWe present a solid-state laser system that generates 750 mW…
Read article Download full paperPulsed blue light at 489nm has been generated by second-harmonic-generation…
Read article Download full paperThe noise performance of a feed-forward scheme for carrier-envelope phase…
Read article Download full paperA compact blue laser was generated by intracavity frequency doubling…
Read article Download full paperWe demonstrate a scheme for efficient coherent anti-Stokes Raman scattering…
Read article Download full paperWe report a high-energy optical parametric oscillator (OPO) synchronously-pumped by…
Read article Download full paperWe demonstrate a picosecond optical parametric oscillator synchronously pumped by…
Read article Download full paperWe demonstrate a picosecond optical parametric oscillator (OPO) that is…
Read article Download full paperCarrier-envelope phase stabilization has opened an avenue towards achieving frequency…
Read article Download full paperIntracavity second-harmonic generation of 1.56 and 1.52 W continuous-wave 532…
Read article Download full paper532nm green light source of 1.2W output is generated by…
Read article Download full paperA compact green laser of 1.3 W output at 534.7…
Read article Download full paperA novel intra-cavity frequency doubling of an electrically pumped edge-emitting…
Read article Download full paperWe demonstrate for the first time to our knowledge intra-cavity…
Read article Download full paperThe demonstration of continuous wave intracavity difference-frequency generation in the…
Read article Download full paperWith two cw single-mode Nd:YAG lasers at 1064 and 1319…
Read article Download full paperThe temperature tuning characteristics of quasi-phase matching (QPM) wavelength acceptance…
Read article Download full paperWe present an exact model of the detection statistics of…
Read article Download full paperWe describe the performance of two mid-infrared laser spectrometers for…
Read article Download full paperIn order to harness the power of UASs for in…
Read article Download full paperWe report on the development of a laser source in…
Read article Download full paperThe paper reports the realization and characterization of a difference…
Read article Download full paperAn optical parametric oscillator using a periodically poled LiNbO3 crystal…
Read article Download full paperImprovement to the Sellmeier equation for the extraordinary index of…
Read article Download full paperThe authors report the realization of an all-fiber system emitting…
Read article Download full paperQuantum-enhanced optical systems operating within the 2- to 2.5-um spectral…
Read article Download full paperOwing to a reduced solar background and low propagation losses…
Read article Download full paperThis white paper discusses the use of non-linear optical crystals for wavelength engineering.
Read articleThe excellent optical and unique material properties of lithium niobate…
Read article Download full paperWe report on the development of an all-fibered sum frequency…
Read article Download full paperA compact, mid-infrared, synchronously pumped, fiber-feedback optical parametric oscillator (OPO)…
Read article Download full paperIn this paper, we study the possible parametric down-conversion processes…
Read article Download full paperConverting single photons from one wavelength to another is of…
Read article Download full paperWe report on efficient, two stage single-pass second harmonic generation…
Read article Download full paperWe demonstrate a continuous wave (CW) seeded synchronization-free optical parametric…
Read article Download full paperWe report a single-stage bi-directional interface capable of linking Sr+…
Read article Download full paperCavity solitons are optical pulses that propagate indefinitely in nonlinear…
Read article Download full paperWe present a continuous-wave, 810 nm laser with watt-level powers. Our…
Read article Download full paperAchieving high level of pulsed squeezing, in a platform which…
Read article Download full paperWe demonstrate a carrier-envelope offset-free frequency comb in the mid-wavelength…
Read article Download full paperHigh-dimensional photonic entanglement is a promising candidate for error-protected quantum…
Read article Download full paperThe Zepler Institute at The University of Southampton provides a…
Read articleDr. Adetunmise Dada’s research interests include quantum optics and engineering…
Read articleHere we pave the way to quantum measurements in the MIR by the demonstration of a room temperature coincidence measurement with non-degenerate twin photons at about 3.1 mm.
Read article Download full paperWe report the second-harmonic generation of 670 µJ at 532 nm of a single-frequency fiber amplifier signal operating in the quasi-continuous-wave mode in a 10-mm periodically poled Mg-doped lithium niobate (MgO:PPLN) crystal, while increasing compactness.
Read article Download full paperWe report a high-repetition-rate, compact, mid-infrared picosecond (ps) optical parametric oscillator (OPO) based on periodically poled lithium niobate (PPLN).
Read article Download full paperRubidium Magneto Optical Trap (Rb-MOT)
Read articleWe report a high-repetition-rate, compact, mid-infrared picosecond (ps) optical parametric oscillator (OPO) based on periodically poled lithium niobate (PPLN).
Read article Download full paperWe report a nonlinear optical upconversion 3D imaging system for infrared radiation enabled by zinc indiffused MgO:PPLN waveguides.
Read article Download full paperThe impact of QT will increase in the coming years and non-linear optical (NLO) crystals will have a key role to play in the commercialisation of the technology.
Read articleWe demonstrate enhanced optical parametric gains occurring at the edge of periodically poled LiNbO3 (PPLN) regions.
Read article Download full paperWe develop a Sagnac-type source of ultrabright, non-degenerate, polarization-entangled photon pair that is highly stable and compact simultaneously.
Read article Download full paperHere we present an experimental demonstration of an
unconditionally secure digital signature (USS) protocol implemented for the first time, to the best of our knowledge, on a fully connected quantum network without trusted nodes
There is a near term, high priority need for next generation timing and sensing solutions for important applications including autonomous navigation and inertial sensing and gravimetric & magnetic sensing.
Read articleWe report exciton-mediated coupling between microwave and optical fields in cuprous oxide (Cu2O) at low temperatures.
Read article Download full paperHere, we experimentally certify EPR correlations of photon pairs generated by spontaneous parametric down-conversion (SPDC) in a nonlinear crystal with type-0 phase-matching at telecommunication wavelength for the first time.
Read article Download full paperHere, we first demonstrate a linear dependence of the ETPA rate with the photon-pair rate, a clear signature of ETPA, and estimate the values for the concentration-dependent ETPA cross section for Rhodamine 6G.
Read article Download full paperWe experimentally study entangled two-photon absorption in rhodamine 6G as a function of the spatial properties of a high flux of broadband entangled photon pairs.
Read article Download full paperWe demonstrate a spectrally correlated photon-pair source at telecom wavelengths (spanning across the S-, C-, and L-bands), based on type-0 spontaneous parametric downconversion (SPDC) in a fiber-coupled Zn-indiffused MgO doped periodically poled lithium niobate (PPLN) ridge waveguide.
Read article Download full paperWe demonstrate the quantum frequency conversion of a heralded 1551 nm photon to any wavelength within an ultrabroad (1226–1408 nm) range in a group-velocity-symmetric photonic crystal fiber, covering over 150 independent frequency bins.
Read article Download full paperWe demonstrate the quantum frequency conversion of a heralded 1551 nm photon to any wavelength within an ultrabroad (1226–1408 nm) range in a group-velocity-symmetric photonic crystal fiber, covering over 150 independent frequency bins.
Read article Download full paperIn this new white paper, Dr RongRong Xu, Global Head…
Read articleWe describe the design, commissioning and operation of an ultra-low-vibration closed-cycle cryogenic ion trap apparatus. One hundred lines for low-frequency signals and eight microwave / radio frequency coaxial feed lines offer the possibility of implementing a small-scale ion-trap quantum processor or simulator.
Read article Download full paperHere, we report on a flexible source design that produces high-quality entanglement in continuous-wave and GHz-rate-pulsed operation modes.
Read article Download full paperWe introduce a fiber-based laser system providing 130 fs pulses with 3.5 nJ energy at 920 nm at a 43 MHz repetition rate and illustrate the potential of the source for two-photon excited fluorescence microscopy of living mouse brain.
Read article Download full paperID Quantique (IDQ) are global leaders in Quantum-Safe Security and Quantum Sensing.
Read articleWe report the realization of a fibred polarization entangled photon-pair source at 1560 nm based on a type-II nonlinear interaction and working in the picosecond regime.
Read article Download full paperWe demonstrate the use of dual-comb spectroscopy for isotope ratio measurements.
Read article Download full paperWe report on an apparatus for cooling and trapping of neutral dysprosium.
Read article Download full paperCompact and versatile OPG-OPA based on a periodically poled nonlinear crystal pumped by femtosecond Ytterbium fiber laser
Read article Download full paperUsing a visible beam to probe the thermal effect induced by infrared absorption, mid-infrared photothermal (MIP) microscopy allows bond-selective chemical imaging at submicron spatial resolution.
Read article Download full paperWe present a simple and novel technique for achieving ultra-violet (UV) wavelength-tunable laser operation in the continuous-wave regime.
Read article Download full paperImperial College London are using non-linear interference so that infra-red light can probe an object, but the information is carried by visible light. T
Read articleHere, we report on the development of a novel continuous wave (cw) frequency quintupled laser at 308 nm with an output power of 0.5 mW, based on a fiber laser operating in the telecom band.
Read article Download full paperThe subject of this thesis is the creation of a dipolar quantum gas of dysprosium atoms as well as the investigation of its two-body interactions.
Read article Download full paperIn this new white paper, Dr Stuart Coomber, Global Head of OEM Sales, discusses the use of periodically poled lithium niobate (PPLN) in medical lasers.
Read articleHere, we describe a compact, portable, and low-cost system that is able to image objects at IR wavelengths without an IR source or IR detector.
Read article Download full paperHere, we describe a compact, portable, and low-cost system that is able to image objects at IR wavelengths without an IR source or IR detector.
Read article Download full paperIn this white paper, Dr. RongRong Xu, Global Head of Production Sales at Covesion, explores the potential of PPLN in spectroscopy applications, including nonlinear optical spectroscopy, sum frequency generation spectroscopy, and raman spectroscopy.
Read articleWe report a compact and reliable ultrafast fiber laser system optimized for seeding a high energy, 2 μm pumped, 3 μm wavelength optical parametric chirped pulse amplification to drive soft X-ray high harmonics.
Read article Download full paperHere, we introduce a concept achieving a broad, continuous spectrum by combining second-harmonic generation and sum frequency-mixing in an MgO:PPLN waveguide to generate 390–520 nm light from a 1 GHz Ti:sapphire frequency comb.
Read article Download full paperThis near unity-efficiency quantum frequency conversion, over a bandwidth >45 THz and, to our knowledge, the broadest to date, allows us to measure the state with an electron-multiplying CCD (EMCCD) camera-based spectrometer, at non-cryogenic temperatures.
Read article Download full paperPrecilasers utilized a range of Periodically Poled Lithium Niobate (PPLN) crystals from Covesion for second harmonic generation, sum frequency generation and other non-linear wavelength conversions.
Read articleHere we demonstrate a photon-counting approach that can extend the unique advantages of this method into ultraviolet regions where nonlinear frequency conversion tends to be very inefficient.
Read article Download full paperThe NeW-VIEW project, funded within the Eurostars program, has delivered a prototype, next generation, wavelength meter for high accuracy measurement of Mid-IR light.
Read articleIn this work, we leverage robust 1550 nm few-cycle pulses to generate frequency combs in the UV–visible.
Read article Download full paperIn this review, an extensive overview about nonlinear interferometers and their working principle is given.
Read article Download full paperWe demonstrate a 4.09-GHz repetition rate source of photon pairs entangled across early and late time bins separated by 80 ps.
Read article Download full paperA new epitaxial layer design with a double mode expander layer, high refractive index claddings, and an aluminum-free active area has been used to demonstrate distributed feedback lasers operating at 778.1 nm wavelength with reduced Lorentzian linewidth aimed at miniature atomic clock applications.
Read article Download full paperA simple modulation-free locking method based on stabilization of narrow-band frequency-doubled power of the SP-OPO output comb is demonstrated in this Letter.
Read article Download full paperA fully stabilized mid-infrared optical frequency comb spanning from 2.9 to 3.4 µm is described in this article.
Read article Download full paperWe report a degenerate femtosecond optical parametric oscillator (OPO) that is synchronously pumped by a mode-locked Ti:sapphire laser at 1 GHz repetition rate.
Read article Download full paperTokamak Energy, founded in 2009 are developing the technology to deliver fusion energy by the 2030s.
Read articleRead the latest publications in the field of PPLN technology or search through our extensive back catalogue of papers.
EXPLORESearch our FAQ’s to answer any questions you may have on using PPLN for your application.
READ FAQSOur technical documents provide useful background information on PPLN, from second order nonlinear optics to tips on how to use PPLN.
White PapersOur white papers provide technical information on the use of non-linear optical crystals in frequency conversion.