Abstract

We describe experimental results of loss measurement in optical waveguide devices by coherent frequency-modulated continuous-wave reflectometry composed of a frequency-swept semiconductor laser and a two-beam interferometer. The backscattered light in a potassium-ion-exchanged single-mode optical waveguide is successfully detected, and the loss along the optical waveguide is evaluated to be 1.0 dB/cm.

© 1993 Optical Society of America

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References

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  1. K. Takada, N. Takato, J. Noda, N. Uchida, J. Opt. Soc. Am. A 7, 857 (1990).
    [CrossRef]
  2. M. Kobayashi, H. Hanafusa, K. Takada, J. Noda, J. Lightwave Technol. 9, 623 (1991).
    [CrossRef]
  3. D. Uttam, B. Culshaw, J. Lightwave Technol. LT-3, 971 (1985).
    [CrossRef]
  4. H. Barfuss, E. Brinkmeyer, J. Lightwave Technol. 7, 3 (1989).
    [CrossRef]
  5. Y. Imai, K. Iizuka, in Proceedings of 7th Optical Fiber Sensors Conference (Institute of Radio and Electrics Engineers, Sydney, Australia, 1990), p. 183.

1991 (1)

M. Kobayashi, H. Hanafusa, K. Takada, J. Noda, J. Lightwave Technol. 9, 623 (1991).
[CrossRef]

1990 (1)

1989 (1)

H. Barfuss, E. Brinkmeyer, J. Lightwave Technol. 7, 3 (1989).
[CrossRef]

1985 (1)

D. Uttam, B. Culshaw, J. Lightwave Technol. LT-3, 971 (1985).
[CrossRef]

Barfuss, H.

H. Barfuss, E. Brinkmeyer, J. Lightwave Technol. 7, 3 (1989).
[CrossRef]

Brinkmeyer, E.

H. Barfuss, E. Brinkmeyer, J. Lightwave Technol. 7, 3 (1989).
[CrossRef]

Culshaw, B.

D. Uttam, B. Culshaw, J. Lightwave Technol. LT-3, 971 (1985).
[CrossRef]

Hanafusa, H.

M. Kobayashi, H. Hanafusa, K. Takada, J. Noda, J. Lightwave Technol. 9, 623 (1991).
[CrossRef]

Iizuka, K.

Y. Imai, K. Iizuka, in Proceedings of 7th Optical Fiber Sensors Conference (Institute of Radio and Electrics Engineers, Sydney, Australia, 1990), p. 183.

Imai, Y.

Y. Imai, K. Iizuka, in Proceedings of 7th Optical Fiber Sensors Conference (Institute of Radio and Electrics Engineers, Sydney, Australia, 1990), p. 183.

Kobayashi, M.

M. Kobayashi, H. Hanafusa, K. Takada, J. Noda, J. Lightwave Technol. 9, 623 (1991).
[CrossRef]

Noda, J.

M. Kobayashi, H. Hanafusa, K. Takada, J. Noda, J. Lightwave Technol. 9, 623 (1991).
[CrossRef]

K. Takada, N. Takato, J. Noda, N. Uchida, J. Opt. Soc. Am. A 7, 857 (1990).
[CrossRef]

Takada, K.

M. Kobayashi, H. Hanafusa, K. Takada, J. Noda, J. Lightwave Technol. 9, 623 (1991).
[CrossRef]

K. Takada, N. Takato, J. Noda, N. Uchida, J. Opt. Soc. Am. A 7, 857 (1990).
[CrossRef]

Takato, N.

Uchida, N.

Uttam, D.

D. Uttam, B. Culshaw, J. Lightwave Technol. LT-3, 971 (1985).
[CrossRef]

J. Lightwave Technol. (3)

M. Kobayashi, H. Hanafusa, K. Takada, J. Noda, J. Lightwave Technol. 9, 623 (1991).
[CrossRef]

D. Uttam, B. Culshaw, J. Lightwave Technol. LT-3, 971 (1985).
[CrossRef]

H. Barfuss, E. Brinkmeyer, J. Lightwave Technol. 7, 3 (1989).
[CrossRef]

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

Other (1)

Y. Imai, K. Iizuka, in Proceedings of 7th Optical Fiber Sensors Conference (Institute of Radio and Electrics Engineers, Sydney, Australia, 1990), p. 183.

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Figures (4)

Fig. 1
Fig. 1

Experimental configuration for loss measurement in optical waveguide devices using coherent frequency-modulated continuous-wave reflectometry.

Fig. 2
Fig. 2

Measured beat spectrum of the Fresnel reflection at the far end of the 80-cm-long single-mode optical fiber: (a) before modification of the modulating injection current waveform, (b) after modification of the modulating injection current waveform.

Fig. 3
Fig. 3

Measured Rayleigh-backscattered light in a 1-m-long single-mode optical fiber.

Fig. 4
Fig. 4

Measured backscattered light in a potassium-ion-exchanged single-mode glass waveguide.

Equations (3)

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f B = 4 τ f m Δ f ,
δ z = c 2 n Δ f ,
γ ( τ ) = exp ( - 4 π τ Δ v ) ,

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