Abstract

We have analyzed the Šolc filtering characteristics in a periodically poled Ti:LiNbO3 (Ti:PPLN) multimode waveguide. The single- and dual-wavelength filtering were achieved under the optimized guiding condition for the TEM00-like mode and two mode (TEM00- and TEM01-like mode), respectively. The full width at half-maximum of the filter was about 0.21nm at both guiding conditions. We found that the origin of two peaks of the dual-wavelength Šolc filter in the two-mode guiding condition is the different effective refractive index between the TEM00- and TEM01-like modes. The wavelength difference of two peaks is about 0.8nm at room temperature.

© 2007 Optical Society of America

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References

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2007 (1)

2005 (1)

Y. L. Lee, Y.-C. Noh, C. Jung, T. J. Yu, B.-A. Yu, J. Lee, D.-K. Ko, and K. Oh, Appl. Phys. Lett. 86, 011104 (2005).
[CrossRef]

2003 (3)

J. Shi, X. Chen, Y. Chen, Y. Zhu, Y. Xia, and Y. Chen, Electron. Lett. 39, 224 (2003).
[CrossRef]

Y. Zhu, X. Chen, J. Shi, Y. Chen, Y. Xia, and Y. Chen, Opt. Commun. 228, 139 (2003).
[CrossRef]

Y. L. Lee, Y.-C. Noh, C. Jung, T. J. Yu, D.-K. Ko, and J. Lee, Opt. Express 11, 2813 (2003).
[CrossRef] [PubMed]

2001 (1)

G. Schreiber, H. Suche, Y. L. Lee, W. Grundkötter, V. Quiring, R. Ricken, and W. Sohler, Appl. Phys. B 73, 501 (2001).

1999 (1)

1991 (1)

1965 (1)

1938 (1)

Y. Ohman, Nature 41, 157, 291 (1938).

Appl. Phys. B (1)

G. Schreiber, H. Suche, Y. L. Lee, W. Grundkötter, V. Quiring, R. Ricken, and W. Sohler, Appl. Phys. B 73, 501 (2001).

Appl. Phys. Lett. (1)

Y. L. Lee, Y.-C. Noh, C. Jung, T. J. Yu, B.-A. Yu, J. Lee, D.-K. Ko, and K. Oh, Appl. Phys. Lett. 86, 011104 (2005).
[CrossRef]

Electron. Lett. (1)

J. Shi, X. Chen, Y. Chen, Y. Zhu, Y. Xia, and Y. Chen, Electron. Lett. 39, 224 (2003).
[CrossRef]

J. Opt. Soc. Am. (1)

J. Opt. Soc. Am. B (1)

Nature (1)

Y. Ohman, Nature 41, 157, 291 (1938).

Opt. Commun. (1)

Y. Zhu, X. Chen, J. Shi, Y. Chen, Y. Xia, and Y. Chen, Opt. Commun. 228, 139 (2003).
[CrossRef]

Opt. Express (2)

Opt. Lett. (1)

Other (2)

A. Yariv and P. Yeh, Optical Waves in Crystal (Wiley, 1984).

Y. L. Lee, N. E. Yu, C.-S. Kee, D.-K. Ko, Y.-C. Noh, B.-A. Yu, W. Shin, T. J. Eom, and J. Lee, "Waveguide-type wavelength-tunable Solc filter in a periodically poled Ti:LiNbO3 waveguide," IEEE Photon. Technol. Lett. (to be published).

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Figures (5)

Fig. 1
Fig. 1

Near field mode profiles of the Ti:PPLN waveguide depending on waveguide coupling conditions: (a) one-mode guiding condition, (b) two-mode guiding condition.

Fig. 2
Fig. 2

SH curves at room temperature. The conversion efficiencies were measured to be 300%/W in both guiding conditions. The 3 dB bandwidth was about 0.2 nm . (a) One-mode guiding condition, (b) two-mode guiding condition.

Fig. 3
Fig. 3

Experimental setup for the waveguide-type Šolc filter based on the Ti:PPLN channel waveguide. WSFL, wavelength-swept fiber laser; OSA, optical spectrum analyzer; PC, polarization controller.

Fig. 4
Fig. 4

Optical spectra of the Šolc filter based on the Ti:PPLN waveguide depending on guiding modes at room temperature: (a) one-mode guiding condition, (b) two-mode guiding condition.

Fig. 5
Fig. 5

(a) Center wavelength of the Šolc filter and the effective refractive index differences ( δ n = n o n e ) as a function of temperature. The line and the scatters indicate the one- and the two-mode guiding conditions, respectively. (b) Difference of δ n between the TEM 01 - and TEM 00 -like modes.

Equations (4)

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T = [ sin ( 1 2 π 1 + ( N Δ Γ π ) 2 ) 1 + ( N Δ Γ π ) 2 ] 2 ,
Δ Γ = π λ 0 ( λ λ 0 ) ,
λ F W H M 1.6 [ λ 0 N ] .
λ m 0 = 2 ( n m o n m e ) d = 2 δ n m d ,

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