Abstract
Optoelectronic generation of well characterized ultrashort electrical pulses plays an important role in the calibration of fast-sampling oscilloscopes. In this paper the authors describe the National Physical Laboratory (NPL) pulse generator, comprising a femtosecond laser and an ultrafast photoconductive switch which can generate electrical pulses as short as 650 fs. The photoconductive switch consists of a GaAs substrate with a top GaAs layer grown under low temperature conditions to ensure a subpicosecond recombination rate. The technique of electrooptic sampling is used to measure pulses on planar transmission lines, such as coplanar waveguide and coplanar stripline. Good agreement is shown between electrooptic sampling measurement and the modelling of pulse propagation along a coplanar waveguide, enabling one to optimize a design of a calibration test source. The use of a pulse generator to calibrate a 50 GHz sampling oscilloscope is described.
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D.HENDERSON and A. G.RODDIE,Meas. Sci. Technol. 1 (1990) 673.
D.HENDERSON, A. G.RODDIE and A. J. A.SMITH,IEEE Proc. A 139 (1992) 254.
J. A.VALDMANIS and G. A.MOUROU,IEEE J. Quantum Electron. 22 (1986) 69.
D. H.AUSTON, A. M.JOHNSON, P. R.SMITH and J. C.BEAN,Appl. Phys. Lett. 37 (1980) 371.
F. E.DOANY,Appl. Phys. Lett. 50 (1987) 460.
M. C.NUSS, D.WHISKER, P. R.SMITH and T. F.HARVEY,Appl. Phys. Lett. 54 (1989) 57.
F. W.SMITH, A. R.CALAWA, C. L.CHEN, M. J.MANFRA and L. J.MAHONEY,IEEE Electron. Device Lett. 9 (1988) 7.
M. KAMINSKA, E. R. WEBER, KIN MAN YU, R. LEON, T. GEORGE, F. W. SSMITH and A. R. CALAWA, inProceedings of the Sixth Conference on Semi-Insulating III–V Materials, Toronto, Canada (Institute of Physics Publishing, 1990), p. 111.
F. W.SMITH, H. Q.LE, V.DIADIUK, M. A.HOLLIS, A. R.CALAWA, S.GUPTA, M.FRANKEL, D. R.DYKAAR, G. A.MOUROU and T. Y.HSIANG,Appl. Phys. Lett. 54 (1988) 890.
M. Y.FRANKEL, S.GUPTA, J. A.VALDMANIS and G. A.MOUROU,IEEE Trans. MTT 39 (1991) 910.
S.GUPTA, J. F.WHITAKER and G. A.MOUROU,IEEE J. Quantum Electron. 28 (1992) 2462.
Grown at SERC III–V Semiconductor Facility, University of Sheffield, UK.
D.GRISCHKOWSKY, I. N.DULING, J. C.CHEN and C. C.CHI,Phys. Rev. Lett. 59 (1987) 1663.
S. R. G. HALL, D. HENDERSON, A. G. RODDIE and A. G. A. SMITH, inConference Digest of Sixth British Electromagnetics Conference, Teddington, UK (National Physical Laboratory, 1993), p. 35/1.
A. G. RODDIE, A. G. A. SMITH and D. HENDERSON, inConference Digest of International Workshop on Femtosecond Technology, Tsukuba, Japan (New Energy and Industrial Development Organization, 1995), p. 72.
Gooch and Housego Ltd, Cornhill, Ilminster, Somerset, UK.
M. Y.FRANKEL, J. F.WHITAKER, G. A.MOUROU and J. A.VALDMANIS,IEEE Microwave and Guided Wave Lett. 1 (1991) 60.
T. Y.HSIANG, J. F.WHITAKER, R.SOBOLEWSKI, D. R.DYKAAR and G. A.MOUROU,Appl. Phys. Lett. 51 (1987) 1551.
J. F.WHITAKER, T. B.NORRIS, G. A.MOUROU and T. Y.HSIANG,IEEE Trans. MTT 35 (1987) 41.
J. R.WHITAKER, R.SOBOLEWSKI, D. R.DYKAAR, T. Y.HSIANG and G. A.MOUROU,IEEE Trans. MTT 36 (1988) 277.
G.HASNAIN, A.DIENES and J. R.WHINNERY,IEEE Trans. 34 (1986) 738.
K. C. GTA, R. GARG and I. J. BAHL,Microstrip Lines and Slotlines (Artech House, 1979), p. 281.
D. S.PHATAK and A. P.DEFONZO,IEEE Trans. MTT 38 (1990) 654.
T. L.SIMPSON and B.TSENG,IEEE Trans. MTT 24 (1976) 106.
N. S. NAHMAN and M. E. GUILLAUME, National Bureau of Standards Technical Note 1047 (1981).
W. L.GANS,IEEE Trans. IM 32 (1983) 126.
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Smith, A.J.A., Roddie, A.G. & Henderson, D. Electrooptic sampling of low temperature GaAs pulse generators for oscilloscope calibration. Opt Quant Electron 28, 933–943 (1996). https://doi.org/10.1007/BF00820158
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DOI: https://doi.org/10.1007/BF00820158