Abstract

An in-line fiber-optic bandpass wavelength filter has been demonstrated based on a single-mode fiber, side polished into the core, in evanescent contact with a high-index multimode overlay waveguide. Passband linewidths down to 5.2 nm were observed, while spacing between transmission peaks was seen to range from 45 to 256 nm for variation of the overlay waveguide parameters. Additionally, rejection ratios of >20 dB and insertion losses as low as 0.5 dB were observed.

© 1994 Optical Society of America

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References

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  1. R. A. Bergh, G. Kotler, H. J. Shaw, Electron. Lett. 16, 260 (1980).
    [CrossRef]
  2. B. S. Kawasaki, K. O. Hill, R. G. Lamont, Opt. Lett. 6, 327 (1981).
    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
  4. M. S. Whalen, K. L. Walker, Electron. Lett. 21, 724 (1985).
    [CrossRef]
  5. W. Johnstone, G. Thursby, D. Moodie, R. Varshney, B. Culshaw, Electron. Lett. 28, 1364 (1992).
    [CrossRef]
  6. J. R. Feth, C. L. Chang, Opt. Lett. 11, 386 (1986).
    [CrossRef] [PubMed]
  7. K. McCallion, W. Johnstone, G. Thursby, Electron. Lett. 28, 410 (1992).
    [CrossRef]
  8. D. Moodie, W. Johnstone, Opt. Lett. 18, 1025 (1993).
    [CrossRef] [PubMed]
  9. A. Yariv, Optical Electronics, 3rd ed. (Holt-Saunders, Tokyo, 1985), Chap. 9, p. 296.

1993 (1)

1992 (2)

W. Johnstone, G. Thursby, D. Moodie, R. Varshney, B. Culshaw, Electron. Lett. 28, 1364 (1992).
[CrossRef]

K. McCallion, W. Johnstone, G. Thursby, Electron. Lett. 28, 410 (1992).
[CrossRef]

1986 (1)

1985 (1)

M. S. Whalen, K. L. Walker, Electron. Lett. 21, 724 (1985).
[CrossRef]

1983 (1)

1981 (1)

1980 (1)

R. A. Bergh, G. Kotler, H. J. Shaw, Electron. Lett. 16, 260 (1980).
[CrossRef]

Bergh, R. A.

R. A. Bergh, G. Kotler, H. J. Shaw, Electron. Lett. 16, 260 (1980).
[CrossRef]

Chang, C. L.

Culshaw, B.

W. Johnstone, G. Thursby, D. Moodie, R. Varshney, B. Culshaw, Electron. Lett. 28, 1364 (1992).
[CrossRef]

Digonnet, M.

Feth, J. R.

Hill, K. O.

Johnstone, W.

D. Moodie, W. Johnstone, Opt. Lett. 18, 1025 (1993).
[CrossRef] [PubMed]

K. McCallion, W. Johnstone, G. Thursby, Electron. Lett. 28, 410 (1992).
[CrossRef]

W. Johnstone, G. Thursby, D. Moodie, R. Varshney, B. Culshaw, Electron. Lett. 28, 1364 (1992).
[CrossRef]

Kawasaki, B. S.

Kotler, G.

R. A. Bergh, G. Kotler, H. J. Shaw, Electron. Lett. 16, 260 (1980).
[CrossRef]

Lamont, R. G.

McCallion, K.

K. McCallion, W. Johnstone, G. Thursby, Electron. Lett. 28, 410 (1992).
[CrossRef]

Moodie, D.

D. Moodie, W. Johnstone, Opt. Lett. 18, 1025 (1993).
[CrossRef] [PubMed]

W. Johnstone, G. Thursby, D. Moodie, R. Varshney, B. Culshaw, Electron. Lett. 28, 1364 (1992).
[CrossRef]

Shaw, H. J.

M. Digonnet, H. J. Shaw, Appl. Opt. 22, 484 (1983).
[CrossRef] [PubMed]

R. A. Bergh, G. Kotler, H. J. Shaw, Electron. Lett. 16, 260 (1980).
[CrossRef]

Thursby, G.

W. Johnstone, G. Thursby, D. Moodie, R. Varshney, B. Culshaw, Electron. Lett. 28, 1364 (1992).
[CrossRef]

K. McCallion, W. Johnstone, G. Thursby, Electron. Lett. 28, 410 (1992).
[CrossRef]

Varshney, R.

W. Johnstone, G. Thursby, D. Moodie, R. Varshney, B. Culshaw, Electron. Lett. 28, 1364 (1992).
[CrossRef]

Walker, K. L.

M. S. Whalen, K. L. Walker, Electron. Lett. 21, 724 (1985).
[CrossRef]

Whalen, M. S.

M. S. Whalen, K. L. Walker, Electron. Lett. 21, 724 (1985).
[CrossRef]

Yariv, A.

A. Yariv, Optical Electronics, 3rd ed. (Holt-Saunders, Tokyo, 1985), Chap. 9, p. 296.

Appl. Opt. (1)

Electron. Lett. (4)

R. A. Bergh, G. Kotler, H. J. Shaw, Electron. Lett. 16, 260 (1980).
[CrossRef]

M. S. Whalen, K. L. Walker, Electron. Lett. 21, 724 (1985).
[CrossRef]

W. Johnstone, G. Thursby, D. Moodie, R. Varshney, B. Culshaw, Electron. Lett. 28, 1364 (1992).
[CrossRef]

K. McCallion, W. Johnstone, G. Thursby, Electron. Lett. 28, 410 (1992).
[CrossRef]

Opt. Lett. (3)

Other (1)

A. Yariv, Optical Electronics, 3rd ed. (Holt-Saunders, Tokyo, 1985), Chap. 9, p. 296.

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Figures (3)

Fig. 1
Fig. 1

Cutoff half-coupler with overlay waveguide.

Fig. 2
Fig. 2

Wavelength response of polished fiber cutoff half-coupler with oil overlay index no = 1.650 and a thickness of 23 μm.

Fig. 3
Fig. 3

Wavelength response of LiNbO3 overlay cutoff filter. Solid curve, TE polarization; dashed-dotted curve, TM polarization.

Tables (1)

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Table 1 Resonance Spacing for Different Overlay Thicknesses and Indices

Equations (1)

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2 π d λ ( n o 2 - n eo 2 ) 1 / 2 = m π + tan - 1 ξ ( n eo 2 - n c 2 n o 2 - n eo 2 ) 1 / 2 + tan - 1 ξ ( n eo 2 - n s 2 n o 2 - n eo 2 ) 1 / 2 ,

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