Time-Domain Terahertz - Toptica

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FemtoFErb 1560compact ultrafast Laser with optional Fiber deliveryToPTIcA’ s FemtoFerb 1560, the most compact ultrafast laser on the market, comprisesa robust, SAM mode-locked fiber oscillator and a power amplifier. It generates pulseswith more than 100 mW average power and pulse durations well below 100 fs. Thesetup includes only polarization-maintaining fiber components.By default, the laser features a 20 cm fiber patchcord which delivers the short pulses.One or two SM/PM fiber extensions of 5 m length can be added on demand to replacecomplex beam delivery setups by flexible fiber solutions.The FemtoFerb provides an ideal match for InGaAs antennas and organic terahertzemitters alike, and also functions in ToPTIcA’s TeraFlash spectroscopy platform.Key features1.0· most compact ultrafast erbium fiberlaser· Pulse duration < 100 fs (typ. 70 fs),average power > 100 mW· optional: Sm/Pm fiber delivery, 5 mfiber lengthAutocorrelation intensity0.80.60.40.2autocorrelationsech-fitAmplitude (a.u.)10 0 Frequency (THz)10 -110 -210 -3Applications· Terahertz generation in InGaAsphotoconductive switches· Terahertz generation in organiccrystals (dAST, dSTmS, oh1)0.0-1.5 -1.0 -0.5 0.0 0.5 1.0 1.5Time delay (ps)Autocorrelation pulse width ofFemtoFErb 1560: typically 70 fs.10 -40 2 4 6 8 10 12 14Terahertz amplitude spectrum, acquiredwith the FemtoFErb 1560 and a DSTMScrystal. (rainbow Photonics)Specifications FemtoFErb 1560Fundamental wavelengthLaser output powerPulse widthSpectral widthTime-bandwidth productRepetition rateOutput couplingPower supply1560 nm> 100 mW, fixed power< 100 fs (70 fs typ.)40 nm typ.0.5 typ.100 mhzSM/PM fiber pigtail, 20 cm standard12 V dcFiber Delivery OptionLaser output powerFd5-Pm> 60 mW, or 2x > 30 mW*Pulse width < 120 fsFiber5 m SM/PM fiber with FC/APC connector or:2 x 5 m SM/PM fiber with FC/APC connectorsorder information12 | www.toptica.comFemtoFErb 1560FD5-PM*Compact femtosecond Erbium fiber laser, withfiber output (20 cm pigtail) & integrated electronicsFiber delivery, 5 m SM/PM fiber*For two fiber outputs, please order the FD5-PM option twice.
Photoconductive SwitchesFiber-coupled InGaAs AntennasPulsed terahertz generation made easy: fiber-pigtailed InGaAs antennas provide anideal match for our turnkey, telecom-band femtosecond lasers. The photoconductiveswitches, developed by the Fraunhofer heinrich-hertz Institute (hhI, Berlin/Germany),use a multi-stack design of InGaAs absorber layers and InAlAs trapping layers to reducethe dark conductivity of the semiconductor and maximize the efficiency of the device.The emitter and detector modules feature a strip-line and a dipole antenna, respectively,and are packaged with a Silicon lens and SM/PM fiber. Their bandwidth spans morethan 4 Thz. Together with the FemtoFerb 1560, these modules make up the corecomponents of the TeraFlash platform.InAlAs (8 nm)InGaAs:Be (12 nm)Key featuresElectric field amplitude (a.u)20100-10-20Semi-insulating InP substrate100periods· compact modules with Sm/Pm fiberpigtail and Silicon lens· high terahertz power: 1 μW average· Large bandwidth > 4 Thz0 10 20 30 40 50 60 70Time (ps)Pulse trace of an InGaAsphotoconductive switch.Multi-layer structure of the emitter/receiver modules.Applications· high-bandwidth spectroscopy (e.g.,explosives or liquid crystals)· Industrial process controlSpecificationsSemiconductor materialWavelengthEmitterReceiverEmitter / receiverbandwidthAverage terahertz power(typ.)PackageRecommended operatingconditions#EK-000781 / #EK-000782multi-layer structure of InGaAs and InAlAs on InP1560 nmPhotoconductive switchwith 25 μm strip-line antennaPhotoconductive switchwith 25 μm dipole antenna,10 μm gap> 4 Thz1 μW @ 20 mW laser powercylindrical, Ø 30 mm, integrated Si lens andSM/PM fiber pigtailLaser power 20 mW averagemax. bias ± 20 V (emitter),± 3 V (receiver, only for testing)order information#EK-000781#EK-000782InGaAs/InP Thz emitter: Photoconductive switchwith strip-line antenna and SM/PM fiber pigtailInGaAs/InP Thz receiver: Photoconductive switchwith dipole antenna and SM/PM fiber pigtailwww.toptica.com | 13note: The photoconductive switches are only available in combination with one of ToPTIcA’s femtosecondlasers (FemtoFerb 1560, FemtoFiber pro Ir or FemtoFiber pro IrS).
Page 3 and 4: Terahertz WavesThe Final Frontier o
Page 5 and 6: Ceramic knife hidden behind blackde
Page 7 and 8: Frequency-Domain Terahertz Generati
Page 9 and 10: Pick one: cw or Pulsed Terahertz?Hi
Page 11: FemtoFiber pro NIRnear-Infrared Fem
Page 15 and 16: SpecificationsComponentsTeraFlashFe
Page 17 and 18: Standard PackageHigh PowerExtension
Page 19 and 20: Wide frequency tuning…The Standar
Page 21 and 22: Phase Modulation ExtensionTwin Fibe
Page 23 and 24: High power from InGaAs emittersInGa
Page 25 and 26: Customized SolutionsInnovative Answ
Page 27 and 28: Take a Look InsideTerahertz radiati

Time-Domain Terahertz - Toptica

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