Ultrafast Temporal Magnifier - Thorlabs

hundreds of sample points, and the sampled waveform is updatedevery time a new pump pulse overlaps with the input signal.Analogous to a reading magnifying glass, the time lens can sample a continuous waveform by scanningthe pump pulse over the input via an adjustable delay line. Our time lens system features a fiber-to-fiber adjustabledelay line that uses a Thorlabs, long travel, motorized stage. This long travel stage can sweep the time lens viewing window relativeto the input to cover very long or continuous waveforms. The delay line can also be used to temporally align a short input waveformwithin the time lens viewing window.When used in conjunction with a real-time oscilloscope, a time lens can be used for detecting non-repetitive, ultrafast opticalwaveforms. In this case, the sampling rate of the system will be the magnification factor (M) multiplied by the real-time samplingrate of the oscilloscope. For example, when a temporal magnification system with M = 200 is used with a 20 GS/s oscilloscope, thewaveform is sampled at a 4 TS/s sampling rate. This system can also be paired with a conventional digital communication analyzerto generate digital data eye diagram measurements at rates greater than 1 Tb/s.pump source(fiber laser)ultrafast signalunder testpump dispersiveelementchirped pump pulseinput dispersiveelementScanningDelayLinenonlinearwaveguideWDMcombinerdetector & oscilloscope(magnified output)Schematic Diagram Showing the Concept of Temporal Magnification Using the Four-Wave Mixing (FWM) Time Lensfilteroutput dispersiveelementInput Cross-Correlation(Multi-Shot, Averaged)Output on 5 GHz Oscilloscope(M = 65, Single-Shot)IntensityTime (5 ps/div)Time (500 ps/div)IntensityIntensityIntensityInput Cross-CorrelationMagnified Output(M = 520)Time (5 ps/div)Time (2.5 ns/div)Sample Input Signals Shown Before and After Temporal MagnificationR. Salem, M. A. Foster, A. C. Turner-Foster, D. F. Geraghty, M. Lipson, and A. L. Gaeta, “High-speed optical sampling using a siliconchiptemporal magnifier,” Opt. Express 17, 4324-4329 (2009).For more information or to place an order, contact one of our Customer Support Specialistsat 973-300-3000 or visit www.thorlabs.com.435 Route 206 | Newton, NJ 07860 | Phone: 973-300-3000 | Fax: 973-300-3600 | Email: sales@thorlabs.com