Abstract

Morphology-dependent resonances of microspheres sitting upon an index-matched single-mode fiber half-coupler are excited by a tunable 753-nm distributed-feedback laser. Resonance peaks in the scattering spectra and associated dips in the transmission spectra for the TE and TM modes are observed. We present a new model that describes this interaction in terms of the fiber–sphere coupling coefficient and the microsphere’s intrinsic quality factor Q0. This model enables us to obtain expressions for the finesse and the Q factor of the composite particle–fiber system, the resonance width, and the depth of the dips measured in the transmission spectra. Our model shows that index matching improves the coupling efficiency by more than a factor of 2 compared with that of a non-index-matched system.

© 1996 Optical Society of America

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References

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  1. L. Collot, V. Lefévre-Seguin, M. Brune, J. M. Raimond, S. Haroche, Europhys. Lett. 23, 327 (1993).
    [CrossRef]
  2. S. Arnold, C. T. Liu, W. B. Whitten, J. M. Ramsey, Opt. Lett. 16, 420 (1991).
    [CrossRef] [PubMed]
  3. S. Arnold, J. Camunale, W. B. Whitten, J. M. Ramsey, K. A. Fuller, J. Opt. Soc. Am. B 9, 819 (1992).
    [CrossRef]
  4. G. Griffel, A. Serpengüzel, S. Arnold, 1995 IEEE Symposium on Frequency Control (Institute of Electrical and Electronics Engineers, New York, 1995).
  5. A. Serpengüzel, S. Arnold, G. Griffel, Opt. Lett. 20, 654 (1995).
    [CrossRef] [PubMed]
  6. S. Arnold, A. Serpengüzel, G. Griffel, in Guided Wave Optoelectronics, T. Tamir, G. Griffel, H. Bertoni, eds. (Plenum, New York, 1995), pp. 495–497.
  7. N. Dubreuil, J. C. Knight, D. K. Leventhal, V. Sandoghdar, J. Hare, V. Lefévre, Opt. Lett. 20, 813 (1995).
    [CrossRef] [PubMed]
  8. P. W. Barber, R. K. Chang, eds., Optical Effects Associated with Small Particles (World Scientific, Singapore, 1988), Chap. 1.

1995 (2)

1993 (1)

L. Collot, V. Lefévre-Seguin, M. Brune, J. M. Raimond, S. Haroche, Europhys. Lett. 23, 327 (1993).
[CrossRef]

1992 (1)

1991 (1)

Arnold, S.

A. Serpengüzel, S. Arnold, G. Griffel, Opt. Lett. 20, 654 (1995).
[CrossRef] [PubMed]

S. Arnold, J. Camunale, W. B. Whitten, J. M. Ramsey, K. A. Fuller, J. Opt. Soc. Am. B 9, 819 (1992).
[CrossRef]

S. Arnold, C. T. Liu, W. B. Whitten, J. M. Ramsey, Opt. Lett. 16, 420 (1991).
[CrossRef] [PubMed]

G. Griffel, A. Serpengüzel, S. Arnold, 1995 IEEE Symposium on Frequency Control (Institute of Electrical and Electronics Engineers, New York, 1995).

S. Arnold, A. Serpengüzel, G. Griffel, in Guided Wave Optoelectronics, T. Tamir, G. Griffel, H. Bertoni, eds. (Plenum, New York, 1995), pp. 495–497.

Brune, M.

L. Collot, V. Lefévre-Seguin, M. Brune, J. M. Raimond, S. Haroche, Europhys. Lett. 23, 327 (1993).
[CrossRef]

Camunale, J.

Collot, L.

L. Collot, V. Lefévre-Seguin, M. Brune, J. M. Raimond, S. Haroche, Europhys. Lett. 23, 327 (1993).
[CrossRef]

Dubreuil, N.

Fuller, K. A.

Griffel, G.

A. Serpengüzel, S. Arnold, G. Griffel, Opt. Lett. 20, 654 (1995).
[CrossRef] [PubMed]

G. Griffel, A. Serpengüzel, S. Arnold, 1995 IEEE Symposium on Frequency Control (Institute of Electrical and Electronics Engineers, New York, 1995).

S. Arnold, A. Serpengüzel, G. Griffel, in Guided Wave Optoelectronics, T. Tamir, G. Griffel, H. Bertoni, eds. (Plenum, New York, 1995), pp. 495–497.

Hare, J.

Haroche, S.

L. Collot, V. Lefévre-Seguin, M. Brune, J. M. Raimond, S. Haroche, Europhys. Lett. 23, 327 (1993).
[CrossRef]

Knight, J. C.

Lefévre, V.

Lefévre-Seguin, V.

L. Collot, V. Lefévre-Seguin, M. Brune, J. M. Raimond, S. Haroche, Europhys. Lett. 23, 327 (1993).
[CrossRef]

Leventhal, D. K.

Liu, C. T.

Raimond, J. M.

L. Collot, V. Lefévre-Seguin, M. Brune, J. M. Raimond, S. Haroche, Europhys. Lett. 23, 327 (1993).
[CrossRef]

Ramsey, J. M.

Sandoghdar, V.

Serpengüzel, A.

A. Serpengüzel, S. Arnold, G. Griffel, Opt. Lett. 20, 654 (1995).
[CrossRef] [PubMed]

G. Griffel, A. Serpengüzel, S. Arnold, 1995 IEEE Symposium on Frequency Control (Institute of Electrical and Electronics Engineers, New York, 1995).

S. Arnold, A. Serpengüzel, G. Griffel, in Guided Wave Optoelectronics, T. Tamir, G. Griffel, H. Bertoni, eds. (Plenum, New York, 1995), pp. 495–497.

Whitten, W. B.

Europhys. Lett. (1)

L. Collot, V. Lefévre-Seguin, M. Brune, J. M. Raimond, S. Haroche, Europhys. Lett. 23, 327 (1993).
[CrossRef]

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

Opt. Lett. (3)

Other (3)

P. W. Barber, R. K. Chang, eds., Optical Effects Associated with Small Particles (World Scientific, Singapore, 1988), Chap. 1.

S. Arnold, A. Serpengüzel, G. Griffel, in Guided Wave Optoelectronics, T. Tamir, G. Griffel, H. Bertoni, eds. (Plenum, New York, 1995), pp. 495–497.

G. Griffel, A. Serpengüzel, S. Arnold, 1995 IEEE Symposium on Frequency Control (Institute of Electrical and Electronics Engineers, New York, 1995).

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Figures (3)

Fig. 1
Fig. 1

Experimental setup. The inset defines the parameters t and r.

Fig. 2
Fig. 2

Temperature-tuning spectra of both the transmission (upper curve) and right angle scattering from the sphere–fiber system.

Fig. 3
Fig. 3

Current tuning scattering and transmission spectra of the TE modes spanning one free spectral range.

Equations (6)

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E r E i = r - exp [ - ( α + i β 0 ) L a ] 1 - r exp [ - ( α + i β 0 ) ] ,
I S I i = T m 1 + 4 r exp ( - α L a ) [ 1 - r exp ( - α L a ) ] 2 sin 2 ( 0.5 β 0 L a ) .
F = π [ r exp ( - α L a ) ] 1 / 2 1 - r exp ( - α L a ) .
T m ( 1 - r 2 ) [ 1 - exp ( - 2 α L a ) ] [ 1 - r exp ( - α L a ) ] 2 .
Q T = 0.5 β 0 L a r exp ( - β 0 4 Q 0 L a ) 1 - r exp ( - β 0 2 Q 0 L a ) .
1 Q T = 1 Q 0 + 1 Q f ,

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