Time delay retrieval via the slope of spatial-spectral interference fringe for short pulses

Spatial-spectral interference carries the spectral phase difference information between short pulses. We propose a new method of time delay retrieval via the slope of spatial-spectral interference fringe in the case of only time delay without high-order spectral phase difference between short pulses. The analytical expression is deduced based on the principle of spatial-spectral interference. The simulation results show that the slope of spatial-spectral interference fringe and the crossing angle between short pulses are both important for the calculation accuracy. This proposed method has advantages of no direction-of-time ambiguity, simple principle and calculation process, which are helpful for the measurement and control of the time delay between short pulses in coherent combination, plasma parameter diagnosis and so on.

[1]  J. Klebniczki,et al.  Dispersion control of a pulse stretcher– compressor system with two-dimensional spectral interferometry , 2005 .

[2]  D. Kane,et al.  Single-shot measurement of the intensity and phase of an arbitrary ultrashort pulse by using frequency-resolved optical gating. , 1993, Optics letters.

[3]  Yaron Silberberg,et al.  Real-time spatial–spectral interference measurements of ultrashort optical pulses , 1997 .

[4]  Todd Ditmire,et al.  Overview of future directions in high energy-density and high-field science using ultra-intense lasers , 2004 .

[5]  Robert J. Levis,et al.  Measuring the spatiotemporal electric field of ultrashort pulses with high spatial and spectral resolution , 2008 .

[6]  A. Zewail,et al.  Laser femtochemistry. , 1988, Science.

[7]  C. Iaconis,et al.  Spectral phase interferometry for direct electric-field reconstruction of ultrashort optical pulses , 1998, Technical Digest. Summaries of Papers Presented at the Conference on Lasers and Electro-Optics. Conference Edition. 1998 Technical Digest Series, Vol.6 (IEEE Cat. No.98CH36178).

[8]  Xiaoming Zeng,et al.  Alignment of a petawatt-class pulse compressor with the third-order dispersion completely compensated , 2016 .

[9]  Wafa Amir,et al.  Characterization of a High Efficiency, Ultrashort Pulse Shaper Incorporating a Reflective 4096-Element Spatial Light Modulator. , 2007, Optics communications.

[10]  Rick Trebino,et al.  Crossed-beam spectral interferometry: a simple, high-spectral-resolution method for completely characterizing complex ultrashort pulses in real time. , 2006, Optics express.

[11]  Kunioki Mima,et al.  X-ray astronomy in the laboratory with a miniature compact object produced by laser-driven implosion , 2009, 0909.0315.