Abstract

The design of an efficient wide-angle dielectric optical waveguide Y-junction power divider is outlined. The method has several degrees of freedom that can be used to optimize the device’s performance to achieve minimization of the radiation loss for a specified mode at the input and equalization of the modal losses in a dual-mode device.

© 1989 Optical Society of America

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References

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  1. For example, W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-18, 1790 (1982).
    [CrossRef]
  2. R. Forber, E. Marom, IEEE J. Quantum Electron. QE-22, 911 (1986).
    [CrossRef]
  3. D. F. Welch, W. Streifer, P. S. Cross, D. R. Scifres, IEEE J. Quantum Electron. QE-23, 752 (1987).
    [CrossRef]
  4. W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
    [CrossRef]
  5. Z. Weissman, A. Hardy, E. Marom, “Mode-dependent radiation loss in Y junctions and directional couplers,” IEEE J. Quantum Electron. (to be published).
  6. R. Baets, P. E. Lagasse, Appl. Opt. 21, 1972 (1982).
    [CrossRef] [PubMed]
  7. O. Hanizumi, M. Miyagi, S. Kawakami, Opt. Commun. 51, 236 (1984).
    [CrossRef]
  8. For example, J. Saijonmaa, D. Yevick, J. Opt. Soc. Am. 73, 1785 (1983).
    [CrossRef]
  9. G. B. Hocker, W. K. Burns, Appl. Opt. 16, 113 (1977).
    [CrossRef] [PubMed]
  10. M. Kuznetsov, IEEE J. Lightwave Technol. LT-3, 674 (1985).
    [CrossRef]
  11. R. N. Thurston, E. Kapon, Y. Silberberg, IEEE J. Quantum Electron. QE-23, 1245 (1987).
    [CrossRef]
  12. A. Hardy, E. Marom, J. Shama, Appl. Opt. 27, 447 (1988).
    [CrossRef] [PubMed]

1988 (1)

1987 (2)

R. N. Thurston, E. Kapon, Y. Silberberg, IEEE J. Quantum Electron. QE-23, 1245 (1987).
[CrossRef]

D. F. Welch, W. Streifer, P. S. Cross, D. R. Scifres, IEEE J. Quantum Electron. QE-23, 752 (1987).
[CrossRef]

1986 (1)

R. Forber, E. Marom, IEEE J. Quantum Electron. QE-22, 911 (1986).
[CrossRef]

1985 (1)

M. Kuznetsov, IEEE J. Lightwave Technol. LT-3, 674 (1985).
[CrossRef]

1984 (1)

O. Hanizumi, M. Miyagi, S. Kawakami, Opt. Commun. 51, 236 (1984).
[CrossRef]

1983 (1)

1982 (2)

R. Baets, P. E. Lagasse, Appl. Opt. 21, 1972 (1982).
[CrossRef] [PubMed]

For example, W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-18, 1790 (1982).
[CrossRef]

1977 (1)

1975 (1)

W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
[CrossRef]

Baets, R.

Burns, W. K.

For example, W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-18, 1790 (1982).
[CrossRef]

G. B. Hocker, W. K. Burns, Appl. Opt. 16, 113 (1977).
[CrossRef] [PubMed]

W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
[CrossRef]

Cross, P. S.

D. F. Welch, W. Streifer, P. S. Cross, D. R. Scifres, IEEE J. Quantum Electron. QE-23, 752 (1987).
[CrossRef]

Forber, R.

R. Forber, E. Marom, IEEE J. Quantum Electron. QE-22, 911 (1986).
[CrossRef]

Hanizumi, O.

O. Hanizumi, M. Miyagi, S. Kawakami, Opt. Commun. 51, 236 (1984).
[CrossRef]

Hardy, A.

A. Hardy, E. Marom, J. Shama, Appl. Opt. 27, 447 (1988).
[CrossRef] [PubMed]

Z. Weissman, A. Hardy, E. Marom, “Mode-dependent radiation loss in Y junctions and directional couplers,” IEEE J. Quantum Electron. (to be published).

Hocker, G. B.

Kapon, E.

R. N. Thurston, E. Kapon, Y. Silberberg, IEEE J. Quantum Electron. QE-23, 1245 (1987).
[CrossRef]

Kawakami, S.

O. Hanizumi, M. Miyagi, S. Kawakami, Opt. Commun. 51, 236 (1984).
[CrossRef]

Kuznetsov, M.

M. Kuznetsov, IEEE J. Lightwave Technol. LT-3, 674 (1985).
[CrossRef]

Lagasse, P. E.

Marom, E.

A. Hardy, E. Marom, J. Shama, Appl. Opt. 27, 447 (1988).
[CrossRef] [PubMed]

R. Forber, E. Marom, IEEE J. Quantum Electron. QE-22, 911 (1986).
[CrossRef]

Z. Weissman, A. Hardy, E. Marom, “Mode-dependent radiation loss in Y junctions and directional couplers,” IEEE J. Quantum Electron. (to be published).

Milton, A. F.

For example, W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-18, 1790 (1982).
[CrossRef]

W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
[CrossRef]

Miyagi, M.

O. Hanizumi, M. Miyagi, S. Kawakami, Opt. Commun. 51, 236 (1984).
[CrossRef]

Saijonmaa, J.

Scifres, D. R.

D. F. Welch, W. Streifer, P. S. Cross, D. R. Scifres, IEEE J. Quantum Electron. QE-23, 752 (1987).
[CrossRef]

Shama, J.

Silberberg, Y.

R. N. Thurston, E. Kapon, Y. Silberberg, IEEE J. Quantum Electron. QE-23, 1245 (1987).
[CrossRef]

Streifer, W.

D. F. Welch, W. Streifer, P. S. Cross, D. R. Scifres, IEEE J. Quantum Electron. QE-23, 752 (1987).
[CrossRef]

Thurston, R. N.

R. N. Thurston, E. Kapon, Y. Silberberg, IEEE J. Quantum Electron. QE-23, 1245 (1987).
[CrossRef]

Weissman, Z.

Z. Weissman, A. Hardy, E. Marom, “Mode-dependent radiation loss in Y junctions and directional couplers,” IEEE J. Quantum Electron. (to be published).

Welch, D. F.

D. F. Welch, W. Streifer, P. S. Cross, D. R. Scifres, IEEE J. Quantum Electron. QE-23, 752 (1987).
[CrossRef]

Yevick, D.

Appl. Opt. (3)

IEEE J. Lightwave Technol. (1)

M. Kuznetsov, IEEE J. Lightwave Technol. LT-3, 674 (1985).
[CrossRef]

IEEE J. Quantum Electron. (5)

R. N. Thurston, E. Kapon, Y. Silberberg, IEEE J. Quantum Electron. QE-23, 1245 (1987).
[CrossRef]

For example, W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-18, 1790 (1982).
[CrossRef]

R. Forber, E. Marom, IEEE J. Quantum Electron. QE-22, 911 (1986).
[CrossRef]

D. F. Welch, W. Streifer, P. S. Cross, D. R. Scifres, IEEE J. Quantum Electron. QE-23, 752 (1987).
[CrossRef]

W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
[CrossRef]

J. Opt. Soc. Am. (1)

Opt. Commun. (1)

O. Hanizumi, M. Miyagi, S. Kawakami, Opt. Commun. 51, 236 (1984).
[CrossRef]

Other (1)

Z. Weissman, A. Hardy, E. Marom, “Mode-dependent radiation loss in Y junctions and directional couplers,” IEEE J. Quantum Electron. (to be published).

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Figures (4)

Fig. 1
Fig. 1

(a) Ordinary dual-mode YPD and (b) the proposed VLLYPD. In the designs discussed here and in Figs. 24, w0 = 6 μm, w1 = 3μm, n0 = 2.2, Δn = n1n0 = 5.1 × 10−3, and λ = 0.9 μm (the V number in the input waveguide is 2π).

Fig. 2
Fig. 2

Propagation of the antisymmetric mode in (a) an ordinary YPD and (b) a VLLYPD with d0 = 5 μm. The basic parameters are as specified in Fig. 1, with 2α = 100 mrad and the propagation step equal to 1.5 μm.

Fig. 3
Fig. 3

Curves describing the power transmission versus the branching angle for (a) an ordinary YPD and (b) a VLLYPD that is optimized for the antisymmetric mode (d0 = 5 μm). The basic parameters are as specified as Fig. 1. The solid curve, symmetric mode; the dashed curve, antisymmetric mode.

Fig. 4
Fig. 4

Power transmission versus the branching angle for the VLLYPD of Fig. 1(b) optimized for equal and minimal losses for both modes (d0 = 2.5 μm). The solid curve, symmetric mode; the dashed curve, antisymmetric mode.

Equations (3)

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T ( z ) = 1 + 0 . 5 [ cosh ( z 30 ) ] 2 ,
w 0 ( z ) = w 0 ( ) T ( z ) for z 0 , w 1 ( z ) = w 1 ( ) T ( z ) for z 0 ,
α peak 90 θ 1 sin 1 { n 0 n 1 cos [ sin 1 ( n 1 n 0 sin θ 0 ) ] } ,

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