Abstract

We present our work in optical generation of arbitrarily shaped millimeter-wave electromagnetic waveforms. Through a novel technique, which utilizes tailored optical pulse sequences from a direct space-to-time pulse shaper to drive a high-speed optical-to-electrical converter, we generate amplitude-equalized, arbitrarily phase-and frequency-modulated waveforms at center frequencies approaching 50 GHz. In addition, we demonstrate the extension of this technique to generation of arbitrary electromagnetic waveforms in the low-gigahertz range, through dispersive stretching of the pulse shaper output. In the dispersively stretched configuration, the duration of our electrical waveforms is tuned through simple alignment changes in our pulse-shaping apparatus.

© 2003 IEEE

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J. Lightwave Technol. (1)

Opt. Lett. (6)

Other (12)

B. H. Kolner, "Generalization of the concepts of focal length and f -number to space and time", J. Opt. Soc. Amer. A, vol. 11, pp. 3229-3234, 1994.

J. D. McKinney, D. S. Seo and A. M. Weiner, "Photonically assisted generation of continuous arbitrary millimeter electromagnetic waveforms", Electron. Lett., vol. 39, pp. 309-311, 2003.

A. M. Weiner, "Femtosecond pulse shaping using spatial light modulators", Rev. Sci. Instrum., vol. 71, p. 1929, 2000.

J. C. Twichell, J. L. Wasserman, P. W. Juodawlkis, G. E. Betts and R. C. Williamson, "High-linearity 208-ms/s photonic analog-to-digital converter using 1-to-4 optical time-division demultiplexers", IEEE Photon. Technol. Lett., vol. 13, pp. 714 -716, July 2001.

T. R. Clark and M. L. Dennis, "Toward a 100-gsample/s photonic a-d converter", IEEE Photon. Technol. Lett., vol. 13, pp. 236 -238, Mar. 2001.

A. S. Bhushan, P. V. Kelkar, B. O. Boyraz and M. Islam, "130-gsa/s photonic analog-to-digital converter with time stretch preprocessor", IEEE Photon. Technol. Lett., vol. 14, pp. 684-686, May 2002.

M. Z. Win and R. A. Scholtz, "Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communications", IEEE Trans. Commun., vol. 48, pp. 679-691, Apr. 2000.

S. Poinsot, H. Porte, J.-P. Goedgebuer, W. T. Rhodes and B. Boussert, "Continuous radio-frequency tuning of an optoelectronic oscillator with dispersive feedback", Opt. Lett. , vol. 27, pp. 1300-1302, 2002.

T. Yilmaz, C. M. DePriest, T. Turpin, J. H. Abeles and P. J. Delfyett, "Toward a photonic arbitrary waveform generator using a modelocked external cavity semiconductor laser", IEEE Photon. Technol. Lett., vol. 14, pp. 1608-1610, Nov. 2002.

B. Jalai, P. Kelkar and V. Saxena, "Photonic arbitrary waveform generator", in Proc. 14th Annu. Meeting IEEE, vol. 1, Nov. 2001.

J. Chou, Y. Han and B. Jalai, "Adaptive RF-photonic arbitrary waveform generator", IEEE Photon. Technol. Lett., vol. 15, pp. 581 -583, Apr. 2003.

D. E. Leaird and A. M. Weiner, "Femtosecond direct space-to-time pulse shaping", IEEE J. Quantum Electron., vol. 37, pp. 494-504, Apr. 2001 .

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