Abstract

A novel technique to generate binary phase-coded, direct-sequence ultra-wideband (DS-UWB) signals in the optical domain is proposed and demonstrated. In the proposed system, the wavelengths from a laser array are modulated by a Gaussian pulse, which is sent to a multichannel optical frequency discriminator, to generate a UWB monocycle or doublet pulse sequence with a predetermined phase-code pattern. By tuning the wavelengths of the laser array, or by tuning the states of polarization of the wavelengths, the generated pulse shape and code pattern can be changed. The key device in the system is the multichannel dispersive chirped fiber Bragg grating (FBG), which functions, in combination with a dispersive fiber, as a multichannel frequency discriminator with a step-increased group-delay response, to ensure the generated UWB sequence to have uniform time spacing among the chips and to compensate for the fiber-induced chromatic dispersion. The proposed scheme is experimentally demonstrated. A multichannel chirped FBG is designed and fabricated. Binary phase-coded DS-UWB signals with different code patterns are experimentally generated.

© 2008 IEEE

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  2. M. Ghavami, L. B. Michael, R. Kohno, Ultra WideBand Signals and Systems in Communication Engineering (Wiley, 2004).
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2008 (2)

2007 (5)

Q. Wang, J. P. Yao, "Optically switchable UWB monocycle and doublet generation using a reconfigurable photonic microwave delay-line filter," Opt. Express 15, 14667-14672 (2007).

Q. Wang, J. P. Yao, "An electrically switchable optical ultrawideband pulse generator," J. Lightw. Technol. 25, 3626-3633 (2007).

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. Dong, X. Zhang, J. Xu, D. Huang, "Ultrawideband monocycle generation using cross-phase modulation in a semiconductor optical amplifier," Opt. Lett. 32, 1223-1225 (2007).

H. Chen, M. Chen, C. Qiu, J. Zhang, S. Xie, "UWB monocycle pulse generation by optical polarization time delay method," Electron. Lett. 43, 542-543 (2007).

2006 (5)

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

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).

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

J. D. McKinney, A. M. Weiner, "Compensation of the effects of antenna dispersion on UWB waveforms via optical pulse-shaping techniques," IEEE Trans. Microw. Theory Tech. 54, 1681-1686 (2006).

Y. Dai, X. Chen, J. Sun, S. Xie, "Wideband multichannel dispersion compensation based on a strongly chirped sampled Bragg grating and phase shifts," Opt. Lett. 31, 311-313 (2006).

2005 (4)

Y. Dai, X. Chen, X. Xu, C. Fan, S. Xie, "High channel-count comb filter based on chirped sampled fiber Bragg grating and phase shift," IEEE Photon. Technol. Lett. 17, 1040-1042 (2005).

R. Qiu, H. Liu, X. Shen, "Ultra-wideband for multiple access communications," IEEE Commun. Mag. 43, 80-87 (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).

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

2003 (1)

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

1997 (1)

T. Erdogan, "Fiber grating spectra," J. Lightw. Technol. 15, 1277-1294 (1997).

Electron. Lett. (2)

H. Chen, M. Chen, C. Qiu, J. Zhang, S. Xie, "UWB monocycle pulse generation by optical polarization time delay method," Electron. Lett. 43, 542-543 (2007).

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)

R. Qiu, H. Liu, X. Shen, "Ultra-wideband for multiple access communications," IEEE Commun. Mag. 43, 80-87 (2005).

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. Wireless Compon. Lett. (1)

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

IEEE Photon. Technol. Lett. (5)

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

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

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).

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).

Y. Dai, X. Chen, X. Xu, C. Fan, S. Xie, "High channel-count comb filter based on chirped sampled fiber Bragg grating and phase shift," IEEE Photon. Technol. Lett. 17, 1040-1042 (2005).

IEEE Trans. Microw. Theory Tech. (1)

J. D. McKinney, A. M. Weiner, "Compensation of the effects of antenna dispersion on UWB waveforms via optical pulse-shaping techniques," IEEE Trans. Microw. Theory Tech. 54, 1681-1686 (2006).

J. Lightw. Technol. (2)

Q. Wang, J. P. Yao, "An electrically switchable optical ultrawideband pulse generator," J. Lightw. Technol. 25, 3626-3633 (2007).

T. Erdogan, "Fiber grating spectra," J. Lightw. Technol. 15, 1277-1294 (1997).

Opt. Lett. (1)

Q. Wang, J. P. Yao, "An approach to all-optical bipolar direct-sequence ultrawideband coding," Opt. Lett. 33, 1017-1019 (2008).

Opt. Express (2)

Opt. Lett. (2)

Other (7)

T. Kuri, Y. Omiya, T. Kawanishi, S. Hara, K. Kitayama, "Optical transmitter and receiver of 24-GHz ultra-wideband signal by direct photonic conversion techniques," Proc. Int. Topical Meeting on, Microwave Photonics (MWP) (2006) pp. 1-4.

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

M. Farhang, J. A. Salehi, "Spread-time/time-hopping UWB CDMA communication," Proc. IEEE Int. Symp. Commun. Inf. Technol. (ISCIT) (2004) pp. 1047-1050.

H. Ishida, K. Araki, "Design and analysis of UWB bandpass filter with ring filter," IEEE MTT-S Int. Dig. (2004) pp. 1307-1310.

Y. Dai, J. P. Yao, "An approach to optical generation and distribution of binary phase coded direct sequence ultra-wideband signals," Proc. IEEE Int. Topical Meeting Microwave Photonics (2007) pp. 257-260.

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

M. Poulin, Y. Vasseur, F. Trepanier, M. Guy, M. Morin, Y. Painchaud, J. Rothenberg, "Apodization of a multichannel dispersion compensator by phase modulation coding of a phase mask," Optical Fiber Communications Conf. (OFC) (2005).

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