Abstract

A novel electrically switchable optical ultrawideband (UWB) pulse generator that is capable of generating both Gaussian monocycle and Gaussian doublet pulses by using a polarization modulator (PolM) and a fiber Bragg grating is proposed and experimentally demonstrated. The polarity and the shape of the generated UWB pulses can be electrically switched by adjusting the voltages applied to two arbitrary wave plates (AWPs), which are incorporated at the input and the output of the PolM to adjust the polarization state of the lightwaves. The key component in the UWB pulse generator is the PolM, which is a special phase modulator that can support both transverse electric and transverse magnetic modes but with opposite phase modulation indexes. Depending on the polarization state of the incident lightwave to the PolM that is linearly polarized and aligned to one principle axis of the PolM or circularly polarized, UWB monocycle or doublet pulses are generated. The polarity of the UWB pulses can be electrically switched by adjusting the voltages applied to the AWPs. The proposed system is implemented, and the generation of UWB monocycle and doublet pulses is experimentally demonstrated. Gaussian monocycle and doublet pulses with a fractional bandwidth of about 150% and 160% are experimentally generated. The proposed electrically switchable optical UWB pulse generator has the potential for applications in UWB communications and radar systems that employ pulse polarity modulation and pulse shape modulation schemes.

© 2007 IEEE

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2007 (2)

C. Wang, F. Zeng, J. P. Yao, "All-fiber ultrawideband pulse generation based on spectral shaping and dispersion-induced frequency-to-time conversion," IEEE Photon. Technol. Lett. 19, 137-139 (2007).

J. P. Yao, F. Zeng, Q. Wang, "Photonic generation of ultra-wideband signals," J. Lightw. Technol. 25, (2007).

2006 (4)

F. Zeng, J. P. Yao, "Ultrawideband impulse radio signal generation using a high-speed electrooptic phase modulator and a fiber-Bragg-grating-based frequency discriminator," IEEE Photon. Technol. Lett. 18, 2062-2064 (2006).

F. Zeng, J. P. Yao, "An approach to ultrawideband pulse generation and distribution over optical fiber," IEEE Photon. Technol. Lett. 18, 823-825 (2006).

Q. Wang, J. P. Yao, "UWB doublet generation using a nonlinearly-biased electro-optic intensity modulator ," Electron. Lett. 42, 1304-1305 (2006).

Q. Wang, F. Zeng, S. Blais, J. P. Yao, "Optical UWB monocycle pulse generation based on cross-gain modulation in a semiconductor optical amplifier," Opt. Lett. 31, 3083-3085 (2006).

2005 (3)

W. P. Lin, J. Y. Chen, "Implementation of a new ultrawide-band impulse system," IEEE Photon. Technol. Lett. 17, 2418-2420 (2005).

L. Zhu, S. Sun, W. Menzel, "Ultra-wideband (UWB) bandpass filters using multiple-mode resonator," IEEE Microw. Wireless Compon. Lett. 15, 796-798 (2005).

I. S. Lin, J. D. McKinney, A. M. Weiner, "Photonic synthesis of broadband microwave arbitrary waveforms applicable to ultra-wideband communication," IEEE Microw. Wireless Compon. Lett. 15, 226-228 (2005).

2004 (2)

J. D. Bull, N. A. F. Jaeger, H. Kato, M. Fairburn, A. Reid, P. Ghanipour, "40 GHz electro-optic polarization modulator for fiber optic communications systems," Proc. SPIE 5577, 133-143 (2004).

R. J. Fontana, "Recent system applications of short-pulse ultra-wideband (UWB) technology," IEEE Trans. Microw. Theory Tech. 52, 2087-2104 (2004).

2003 (2)

D. Porcine, P. Research, W. Hirt, "Ultra-wideband radio technology: Potential and challenges ahead," IEEE Commun. Mag. 41, 66-74 (2003).

G. R. Aiello, G. D. Rogerson, "Ultra-wideband wireless systems," IEEE Microw. Mag. 4, 36-47 (2003).

2002 (1)

J. Han, C. Nguyen, "New ultra-wideband, ultra-short monocycle pulse generator with reduced ringing," IEEE Microw. Wireless Compon. Lett. 12, 206-208 (2002).

2001 (1)

J. S. Lee, C. Nguyen, T. Scullion, "New uniplanar subnanosecond monocycle pulse generator and transformer for time-domain microwave applications," IEEE Trans. Microw. Theory Tech. 49, 1126-1129 (2001).

Electron. Lett. (1)

Q. Wang, J. P. Yao, "UWB doublet generation using a nonlinearly-biased electro-optic intensity modulator ," Electron. Lett. 42, 1304-1305 (2006).

IEEE Commun. Mag. (1)

D. Porcine, P. Research, W. Hirt, "Ultra-wideband radio technology: Potential and challenges ahead," IEEE Commun. Mag. 41, 66-74 (2003).

IEEE Microw. Mag. (1)

G. R. Aiello, G. D. Rogerson, "Ultra-wideband wireless systems," IEEE Microw. Mag. 4, 36-47 (2003).

IEEE Microw. Wireless Compon. Lett. (3)

J. Han, C. Nguyen, "New ultra-wideband, ultra-short monocycle pulse generator with reduced ringing," IEEE Microw. Wireless Compon. Lett. 12, 206-208 (2002).

L. Zhu, S. Sun, W. Menzel, "Ultra-wideband (UWB) bandpass filters using multiple-mode resonator," IEEE Microw. Wireless Compon. Lett. 15, 796-798 (2005).

I. S. Lin, J. D. McKinney, A. M. Weiner, "Photonic synthesis of broadband microwave arbitrary waveforms applicable to ultra-wideband communication," IEEE Microw. Wireless Compon. Lett. 15, 226-228 (2005).

IEEE Photon. Technol. Lett. (4)

F. Zeng, J. P. Yao, "Ultrawideband impulse radio signal generation using a high-speed electrooptic phase modulator and a fiber-Bragg-grating-based frequency discriminator," IEEE Photon. Technol. Lett. 18, 2062-2064 (2006).

F. Zeng, J. P. Yao, "An approach to ultrawideband pulse generation and distribution over optical fiber," IEEE Photon. Technol. Lett. 18, 823-825 (2006).

W. P. Lin, J. Y. Chen, "Implementation of a new ultrawide-band impulse system," IEEE Photon. Technol. Lett. 17, 2418-2420 (2005).

C. Wang, F. Zeng, J. P. Yao, "All-fiber ultrawideband pulse generation based on spectral shaping and dispersion-induced frequency-to-time conversion," IEEE Photon. Technol. Lett. 19, 137-139 (2007).

IEEE Trans. Microw. Theory Tech. (2)

J. S. Lee, C. Nguyen, T. Scullion, "New uniplanar subnanosecond monocycle pulse generator and transformer for time-domain microwave applications," IEEE Trans. Microw. Theory Tech. 49, 1126-1129 (2001).

R. J. Fontana, "Recent system applications of short-pulse ultra-wideband (UWB) technology," IEEE Trans. Microw. Theory Tech. 52, 2087-2104 (2004).

J. Lightw. Technol. (1)

J. P. Yao, F. Zeng, Q. Wang, "Photonic generation of ultra-wideband signals," J. Lightw. Technol. 25, (2007).

Opt. Lett. (1)

Proc. SPIE (1)

J. D. Bull, N. A. F. Jaeger, H. Kato, M. Fairburn, A. Reid, P. Ghanipour, "40 GHz electro-optic polarization modulator for fiber optic communications systems," Proc. SPIE 5577, 133-143 (2004).

Other (3)

M. Ghavami, L. B. Michael, R. Kohno, Ultra-Wideband Signals and Systems in Communication Engineering (Wiley, 2004).

K. Siwiak, D. Mckeown, Ultra-Wideband Radio Technology (Wiley, 2004).

T. Kawanishi, T. Sakamoto, M. Izutsu, "Ultra-wide-band signal generation using high-speed optical frequency-shift-keying technique ," IEEE Int. Top. Meeting MWP Tech. Dig. (2004) pp. 48-51.

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