Abstract

In this paper, we demonstrate a traveling wave linear modulator for high speed analog optical link applications. A two-section Y-fed directional coupler modulator based on electro-optic polymer is linearized with Δβ -reversal technique to suppress the third-order intermodulation distortions. A traveling wave electrode with low RF loss and excellent velocity matching is designed and demonstrated with the bandwidth-length product of 125 GHz·cm. The 3-dB electrical bandwidth of 10 GHz and the spurious free dynamic range of 110 ± 3 dB/Hz<sup>2/3</sup> over the modulation frequency of 2–8 GHz are measured form the fabricated device.

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  1. R. B. Childs, V. A. O'Byrne, "Predistortion linearization of directly modulated DFB lasers and external modulators for AM video transmission," Proc. Tech. Dig. Opt. Fiber Commun. Conf., OSA/IEEE (1990).
  2. R. M. DeRidder, S. K. Korotky, "Feedforward compensation of integrated-optic modulator distortion," Proc. Tech. Dig. Opt. Fiber Commun. Conf., OSA/IEEE (1990).
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  6. S. Thaniyavarn, "Modified 1$\,\times\,$2 directional coupler waveguide modulator," Electron. Lett. 22, 941-942 (1986).
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  14. X. Wang, B. Lee, C. Lin, D. An, R. T. Chen, "Electroptic polymer linear modulators based on multiple-domain Y-fed directional coupler," J. Lightw. Technol. 28, 1670-1675 (2010).
  15. P. Liu, B. J. Li, Y. S. Trisno, "In search of a linear electrooptic amplitude modulator," IEEE Photon. Technol. Lett. 3, 144-146 (1991).
  16. W. B. Bridges, J. H. Schaffner, "Distortion in linearized electrooptic modulators," IEEE Trans. Microw. Theory Tech. 43, 2184-2197 (1995).
  17. J. H. Schaffner, J. F. Lam, C. J. Gaeta, G. L. Tangonan, R. L. Joyce, M. L. Farwell, W. S. C. Chang, "Spur-free dynamic ragne measurements of a fiber optic link with traveling wave linearized directional coupler modulators," IEEE Photon. Technol. Lett. 6, 273-275 (1994).
  18. Y. Hung, S. Kim, H. , Fetternam, "Experimental demonstration of a linearized polymeric directional coupler modulator," IEEE Photon. Technol. Lett. 9, 1762-1764 (2007).

2010 (2)

X. Wang, B. Lee, C. Lin, D. An, R. T. Chen, "Electroptic polymer linear modulators based on multiple-domain Y-fed directional coupler," J. Lightw. Technol. 28, 1670-1675 (2010).

B. Lee, C. Lin, A. X. Wang, R. Dinu, R. T. Chen, "Linearized electro-optic modulators based on a two-section Y-fed directional coupler," Appl. Opt. 49, 6485-6488 (2010).

2009 (1)

2007 (1)

Y. Hung, S. Kim, H. , Fetternam, "Experimental demonstration of a linearized polymeric directional coupler modulator," IEEE Photon. Technol. Lett. 9, 1762-1764 (2007).

2000 (1)

S. Tang, Z. Shi, D. An, L. Sun, R. T. Chen, "Highly efficient linear waveguide modulator based on domain-inverted electro-optic polymers," Opt. Eng. 39, 680-688 (2000).

1999 (1)

R. F. Tavlykaev, R. V. Ramaswamy, "Highly linear Y-fed directional coupler modulator with low intermodulation distortion," J. Lightw.Technol. 17, 282-291 (1999).

1995 (1)

W. B. Bridges, J. H. Schaffner, "Distortion in linearized electrooptic modulators," IEEE Trans. Microw. Theory Tech. 43, 2184-2197 (1995).

1994 (1)

J. H. Schaffner, J. F. Lam, C. J. Gaeta, G. L. Tangonan, R. L. Joyce, M. L. Farwell, W. S. C. Chang, "Spur-free dynamic ragne measurements of a fiber optic link with traveling wave linearized directional coupler modulators," IEEE Photon. Technol. Lett. 6, 273-275 (1994).

1991 (2)

P. Liu, B. J. Li, Y. S. Trisno, "In search of a linear electrooptic amplitude modulator," IEEE Photon. Technol. Lett. 3, 144-146 (1991).

M. L. Farwell, Z.-Q. Lin, E. Wooten, W. S. C. Chang, "An electrooptic intensity modulator with improved linearity," IEEE Photon. Technol. Lett. 3, 792-795 (1991).

1990 (1)

S. K. Korotky, R. M. Ridder, "Dual parallel modulation schemes for low-distortion analog optical transmission," IEEE J. Sel. Areas Commun. 8, 1377-1381 (1990).

1988 (1)

1986 (1)

S. Thaniyavarn, "Modified 1$\,\times\,$2 directional coupler waveguide modulator," Electron. Lett. 22, 941-942 (1986).

1976 (1)

H. Kogelnik, R. V. Schmidt, "Switched directional couplers with alternating $\Delta \beta$," IEEE J. Quantum Electron. QE-12, 396-401 (1976).

1968 (1)

E. Yamashita, "Variational method for the analysis of microstrip-like transmission lines," IEEE Trans. Microw. Theory Tech. MTT-16, 529-535 (1968).

Appl. Opt. (1)

Electron. Lett. (1)

S. Thaniyavarn, "Modified 1$\,\times\,$2 directional coupler waveguide modulator," Electron. Lett. 22, 941-942 (1986).

IEEE J. Quantum Electron. (1)

H. Kogelnik, R. V. Schmidt, "Switched directional couplers with alternating $\Delta \beta$," IEEE J. Quantum Electron. QE-12, 396-401 (1976).

IEEE J. Sel. Areas Commun. (1)

S. K. Korotky, R. M. Ridder, "Dual parallel modulation schemes for low-distortion analog optical transmission," IEEE J. Sel. Areas Commun. 8, 1377-1381 (1990).

IEEE Photon. Technol. Lett. (4)

M. L. Farwell, Z.-Q. Lin, E. Wooten, W. S. C. Chang, "An electrooptic intensity modulator with improved linearity," IEEE Photon. Technol. Lett. 3, 792-795 (1991).

P. Liu, B. J. Li, Y. S. Trisno, "In search of a linear electrooptic amplitude modulator," IEEE Photon. Technol. Lett. 3, 144-146 (1991).

J. H. Schaffner, J. F. Lam, C. J. Gaeta, G. L. Tangonan, R. L. Joyce, M. L. Farwell, W. S. C. Chang, "Spur-free dynamic ragne measurements of a fiber optic link with traveling wave linearized directional coupler modulators," IEEE Photon. Technol. Lett. 6, 273-275 (1994).

Y. Hung, S. Kim, H. , Fetternam, "Experimental demonstration of a linearized polymeric directional coupler modulator," IEEE Photon. Technol. Lett. 9, 1762-1764 (2007).

IEEE Trans. Microw. Theory Tech. (2)

W. B. Bridges, J. H. Schaffner, "Distortion in linearized electrooptic modulators," IEEE Trans. Microw. Theory Tech. 43, 2184-2197 (1995).

E. Yamashita, "Variational method for the analysis of microstrip-like transmission lines," IEEE Trans. Microw. Theory Tech. MTT-16, 529-535 (1968).

J. Lightw. Technol. (1)

X. Wang, B. Lee, C. Lin, D. An, R. T. Chen, "Electroptic polymer linear modulators based on multiple-domain Y-fed directional coupler," J. Lightw. Technol. 28, 1670-1675 (2010).

J. Lightw.Technol. (1)

R. F. Tavlykaev, R. V. Ramaswamy, "Highly linear Y-fed directional coupler modulator with low intermodulation distortion," J. Lightw.Technol. 17, 282-291 (1999).

Opt. Eng. (1)

S. Tang, Z. Shi, D. An, L. Sun, R. T. Chen, "Highly efficient linear waveguide modulator based on domain-inverted electro-optic polymers," Opt. Eng. 39, 680-688 (2000).

Opt. Lett. (2)

Other (3)

A. Yariv, Quantum Electronics (Wiley, 1989) pp. 322.

R. B. Childs, V. A. O'Byrne, "Predistortion linearization of directly modulated DFB lasers and external modulators for AM video transmission," Proc. Tech. Dig. Opt. Fiber Commun. Conf., OSA/IEEE (1990).

R. M. DeRidder, S. K. Korotky, "Feedforward compensation of integrated-optic modulator distortion," Proc. Tech. Dig. Opt. Fiber Commun. Conf., OSA/IEEE (1990).

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