Abstract

A simple method for the generation of a chirp-free optical pulse train with tunable pulse width using a polarization modulator (PolM) and a zero-chirp intensity modulator (IM) is proposed and demonstrated. In the proposed system, a light wave with its polarization direction oriented at an angle of 45° with respect to the principal axis of the PolM is polarization modulated by a sinusoidal drive signal. An optical polarizer is connected after the PolM to convert the polarization-modulated signals to a pulse train with the main peaks having a narrow pulse width. Then, the main peaks are selected by the IM, leading to the generation of a short optical pulse train with a repetition rate that is identical to or twice the frequency of the sinusoidal drive signal, depending on the dc bias of the IM. The pulse width of the generated pulse is easily tuned by adjusting the phase modulation index of the PolM. An experiment is carried out, and a pulse train with a duty cycle as small as 8.16% is generated.

© 2009 Optical Society of America

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  1. M. Suzuki, H. Tanaka, K. Utaka, N. Edagawa, and Y. Matsushima, Electron. Lett. 28, 1007 (1992).
    [CrossRef]
  2. P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
    [CrossRef]
  3. T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, and T. Sueta, IEEE J. Quantum Electron. 24, 382 (1988).
    [CrossRef]
  4. T. Komukai, T. Yamamoto, and S. Kawanishi, IEEE Photon. Technol. Lett. 17, 1746 (2005).
    [CrossRef]
  5. D. S. Kim, M. Arisawa, A. Morimoto, and T. Kobayashi, IEEE J. Sel. Top. Quantum Electron. 2, 493 (1996).
    [CrossRef]
  6. M. Sugiyama, M. Doi, F. Futami, S. Watanabe, and H. Onaka, in European Conference on Optical Communications (ECOC, 2004), paper Tu 3.4.3.
  7. T. Otsuji, M. Yaita, T. Nagatsuma, and E. Sano, IEEE J. Sel. Top. Quantum Electron. 2, 643 (1996).
    [CrossRef]
  8. S. Yang and X. Bao, Opt. Lett. 31, 1032 (2006).
    [CrossRef] [PubMed]
  9. M. Hanna, P. A. Lacourt, S. Poinsot, and J. M. Dudley, Opt. Express 13, 1743 (2005).
    [CrossRef] [PubMed]
  10. J. D. Bull, N. A. Jaeger, H. Kato, M. Fairburn, A. Reid, and P. Ghanipour, in Photonics North 2004: Optical Components and Devices (2004), pp. 133-143.

2006 (1)

2005 (2)

M. Hanna, P. A. Lacourt, S. Poinsot, and J. M. Dudley, Opt. Express 13, 1743 (2005).
[CrossRef] [PubMed]

T. Komukai, T. Yamamoto, and S. Kawanishi, IEEE Photon. Technol. Lett. 17, 1746 (2005).
[CrossRef]

1996 (3)

D. S. Kim, M. Arisawa, A. Morimoto, and T. Kobayashi, IEEE J. Sel. Top. Quantum Electron. 2, 493 (1996).
[CrossRef]

T. Otsuji, M. Yaita, T. Nagatsuma, and E. Sano, IEEE J. Sel. Top. Quantum Electron. 2, 643 (1996).
[CrossRef]

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

1992 (1)

M. Suzuki, H. Tanaka, K. Utaka, N. Edagawa, and Y. Matsushima, Electron. Lett. 28, 1007 (1992).
[CrossRef]

1988 (1)

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, and T. Sueta, IEEE J. Quantum Electron. 24, 382 (1988).
[CrossRef]

Amano, K.

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, and T. Sueta, IEEE J. Quantum Electron. 24, 382 (1988).
[CrossRef]

Arisawa, M.

D. S. Kim, M. Arisawa, A. Morimoto, and T. Kobayashi, IEEE J. Sel. Top. Quantum Electron. 2, 493 (1996).
[CrossRef]

Bao, X.

Bull, J. D.

J. D. Bull, N. A. Jaeger, H. Kato, M. Fairburn, A. Reid, and P. Ghanipour, in Photonics North 2004: Optical Components and Devices (2004), pp. 133-143.

Chernikov, S. V.

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

Davey, R. P.

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

Doi, M.

M. Sugiyama, M. Doi, F. Futami, S. Watanabe, and H. Onaka, in European Conference on Optical Communications (ECOC, 2004), paper Tu 3.4.3.

Dudley, J. M.

Edagawa, N.

M. Suzuki, H. Tanaka, K. Utaka, N. Edagawa, and Y. Matsushima, Electron. Lett. 28, 1007 (1992).
[CrossRef]

Fairburn, M.

J. D. Bull, N. A. Jaeger, H. Kato, M. Fairburn, A. Reid, and P. Ghanipour, in Photonics North 2004: Optical Components and Devices (2004), pp. 133-143.

Fukushima, Y.

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, and T. Sueta, IEEE J. Quantum Electron. 24, 382 (1988).
[CrossRef]

Futami, F.

M. Sugiyama, M. Doi, F. Futami, S. Watanabe, and H. Onaka, in European Conference on Optical Communications (ECOC, 2004), paper Tu 3.4.3.

Ghanipour, P.

J. D. Bull, N. A. Jaeger, H. Kato, M. Fairburn, A. Reid, and P. Ghanipour, in Photonics North 2004: Optical Components and Devices (2004), pp. 133-143.

Gunning, P.

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

Guy, M. J.

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

Hanna, M.

Jaeger, N. A.

J. D. Bull, N. A. Jaeger, H. Kato, M. Fairburn, A. Reid, and P. Ghanipour, in Photonics North 2004: Optical Components and Devices (2004), pp. 133-143.

Kato, H.

J. D. Bull, N. A. Jaeger, H. Kato, M. Fairburn, A. Reid, and P. Ghanipour, in Photonics North 2004: Optical Components and Devices (2004), pp. 133-143.

Kawanishi, S.

T. Komukai, T. Yamamoto, and S. Kawanishi, IEEE Photon. Technol. Lett. 17, 1746 (2005).
[CrossRef]

Kim, D. S.

D. S. Kim, M. Arisawa, A. Morimoto, and T. Kobayashi, IEEE J. Sel. Top. Quantum Electron. 2, 493 (1996).
[CrossRef]

Kobayashi, T.

D. S. Kim, M. Arisawa, A. Morimoto, and T. Kobayashi, IEEE J. Sel. Top. Quantum Electron. 2, 493 (1996).
[CrossRef]

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, and T. Sueta, IEEE J. Quantum Electron. 24, 382 (1988).
[CrossRef]

Komukai, T.

T. Komukai, T. Yamamoto, and S. Kawanishi, IEEE Photon. Technol. Lett. 17, 1746 (2005).
[CrossRef]

Lacourt, P. A.

Lucek, J. K.

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

Matsushima, Y.

M. Suzuki, H. Tanaka, K. Utaka, N. Edagawa, and Y. Matsushima, Electron. Lett. 28, 1007 (1992).
[CrossRef]

Moodie, D. G.

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

Morimoto, A.

D. S. Kim, M. Arisawa, A. Morimoto, and T. Kobayashi, IEEE J. Sel. Top. Quantum Electron. 2, 493 (1996).
[CrossRef]

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, and T. Sueta, IEEE J. Quantum Electron. 24, 382 (1988).
[CrossRef]

Nagatsuma, T.

T. Otsuji, M. Yaita, T. Nagatsuma, and E. Sano, IEEE J. Sel. Top. Quantum Electron. 2, 643 (1996).
[CrossRef]

Onaka, H.

M. Sugiyama, M. Doi, F. Futami, S. Watanabe, and H. Onaka, in European Conference on Optical Communications (ECOC, 2004), paper Tu 3.4.3.

Otsuji, T.

T. Otsuji, M. Yaita, T. Nagatsuma, and E. Sano, IEEE J. Sel. Top. Quantum Electron. 2, 643 (1996).
[CrossRef]

Poinsot, S.

Reid, A.

J. D. Bull, N. A. Jaeger, H. Kato, M. Fairburn, A. Reid, and P. Ghanipour, in Photonics North 2004: Optical Components and Devices (2004), pp. 133-143.

Sano, E.

T. Otsuji, M. Yaita, T. Nagatsuma, and E. Sano, IEEE J. Sel. Top. Quantum Electron. 2, 643 (1996).
[CrossRef]

Siddiqui, A. S.

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

Smith, K.

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

Sueta, T.

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, and T. Sueta, IEEE J. Quantum Electron. 24, 382 (1988).
[CrossRef]

Sugiyama, M.

M. Sugiyama, M. Doi, F. Futami, S. Watanabe, and H. Onaka, in European Conference on Optical Communications (ECOC, 2004), paper Tu 3.4.3.

Suzuki, M.

M. Suzuki, H. Tanaka, K. Utaka, N. Edagawa, and Y. Matsushima, Electron. Lett. 28, 1007 (1992).
[CrossRef]

Tanaka, H.

M. Suzuki, H. Tanaka, K. Utaka, N. Edagawa, and Y. Matsushima, Electron. Lett. 28, 1007 (1992).
[CrossRef]

Taylor, J. R.

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

Utaka, K.

M. Suzuki, H. Tanaka, K. Utaka, N. Edagawa, and Y. Matsushima, Electron. Lett. 28, 1007 (1992).
[CrossRef]

Watanabe, S.

M. Sugiyama, M. Doi, F. Futami, S. Watanabe, and H. Onaka, in European Conference on Optical Communications (ECOC, 2004), paper Tu 3.4.3.

Yaita, M.

T. Otsuji, M. Yaita, T. Nagatsuma, and E. Sano, IEEE J. Sel. Top. Quantum Electron. 2, 643 (1996).
[CrossRef]

Yamamoto, T.

T. Komukai, T. Yamamoto, and S. Kawanishi, IEEE Photon. Technol. Lett. 17, 1746 (2005).
[CrossRef]

Yang, S.

Yao, H.

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, and T. Sueta, IEEE J. Quantum Electron. 24, 382 (1988).
[CrossRef]

Electron. Lett. (2)

M. Suzuki, H. Tanaka, K. Utaka, N. Edagawa, and Y. Matsushima, Electron. Lett. 28, 1007 (1992).
[CrossRef]

P. Gunning, J. K. Lucek, D. G. Moodie, K. Smith, R. P. Davey, S. V. Chernikov, M. J. Guy, J. R. Taylor, and A. S. Siddiqui, Electron. Lett. 32, 1010 (1996).
[CrossRef]

IEEE J. Quantum Electron. (1)

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, and T. Sueta, IEEE J. Quantum Electron. 24, 382 (1988).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (2)

D. S. Kim, M. Arisawa, A. Morimoto, and T. Kobayashi, IEEE J. Sel. Top. Quantum Electron. 2, 493 (1996).
[CrossRef]

T. Otsuji, M. Yaita, T. Nagatsuma, and E. Sano, IEEE J. Sel. Top. Quantum Electron. 2, 643 (1996).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

T. Komukai, T. Yamamoto, and S. Kawanishi, IEEE Photon. Technol. Lett. 17, 1746 (2005).
[CrossRef]

Opt. Express (1)

Opt. Lett. (1)

Other (2)

J. D. Bull, N. A. Jaeger, H. Kato, M. Fairburn, A. Reid, and P. Ghanipour, in Photonics North 2004: Optical Components and Devices (2004), pp. 133-143.

M. Sugiyama, M. Doi, F. Futami, S. Watanabe, and H. Onaka, in European Conference on Optical Communications (ECOC, 2004), paper Tu 3.4.3.

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Figures (4)

Fig. 1
Fig. 1

Diagram showing the generation of a chirp-free optical pulse train: (a) block diagram of the proposed pulse generator, (b) operation principle. The solid line shows the pulse train at the output of the polarizer, and the dashed line shows the microwave signal applied to the IM with a proper time delay introduced to select the main peaks in the pulse train. LD, laser diode; RF, radio frequency; IM, intensity modulator; PC, polarization controller; PolM, polarization modulator.

Fig. 2
Fig. 2

Theoretical study of the proposed pulse generator. (a) Comparison between the proposed method (solid curve) and pulse generation using a phase modulator and a dispersive element (dashed curve). (b) Dependence of the pulse FWHM on the phase-modulation index of the PolM.

Fig. 3
Fig. 3

(a) Waveform and (b) optical spectrum of the experimentally generated optical pulses at 10 GHz .

Fig. 4
Fig. 4

(a) Waveform and (b) optical spectrum of the experimentally generated optical pulses at 4 GHz .

Equations (2)

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[ E x E y ] = [ exp [ j ω c t + j β 2 sin ω m t ] exp [ j ω c t j β 2 sin ω m t ] ] ,
E o = 2 2 [ E x ( t ) + E y ( t ) ] = 2 cos ( β 2 sin ω m t ) exp ( j ω c t ) .

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