Abstract

Pb-salt waveguides with a metal-clad layer are discussed. It is shown that for TE modes one can assume that Ey = 0 at the metal–semiconductor boundary, while for TM modes the complex formalism should be used. It is also shown that lasers with a metal-clad waveguide should have only a small increase in their threshold current while operating in a TE mode and that they should operate in a TE mode since their TM modes generally have high threshold current.

© 1988 Optical Society of America

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References

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  1. I. P. Kaminow, W. L. Mammel, H. P. Weber, Appl. Opt. 13, 396 (1974).
    [CrossRef] [PubMed]
  2. A. Reisinger, Appl. Opt. 12, 1015 (1973).
    [CrossRef] [PubMed]
  3. A. Otto, W. Sohler, Opt. Commun. 3, 254 (1971).
    [CrossRef]
  4. J. D. Jackson, Classical Electrodynamics, 2nd ed. (Wiley, New York, 1975).
  5. Y. Shani, R. Rosman, A. Katzir, IEEE J. Quantum Electron. QE-21, 51 (1985).
    [CrossRef]
  6. Y. Shani, A. Katzir, K.-H. Bachem, P. Norton, M. Tacke, H. M. Preier, Appl. Phys. Lett. 48, 1178 (1986).
    [CrossRef]
  7. V. G. Padalka, I. N. Shklyarevskii, Opt. Spectrosc.(USSR) 11, 285 (1961).

1986 (1)

Y. Shani, A. Katzir, K.-H. Bachem, P. Norton, M. Tacke, H. M. Preier, Appl. Phys. Lett. 48, 1178 (1986).
[CrossRef]

1985 (1)

Y. Shani, R. Rosman, A. Katzir, IEEE J. Quantum Electron. QE-21, 51 (1985).
[CrossRef]

1974 (1)

1973 (1)

1971 (1)

A. Otto, W. Sohler, Opt. Commun. 3, 254 (1971).
[CrossRef]

1961 (1)

V. G. Padalka, I. N. Shklyarevskii, Opt. Spectrosc.(USSR) 11, 285 (1961).

Bachem, K.-H.

Y. Shani, A. Katzir, K.-H. Bachem, P. Norton, M. Tacke, H. M. Preier, Appl. Phys. Lett. 48, 1178 (1986).
[CrossRef]

Jackson, J. D.

J. D. Jackson, Classical Electrodynamics, 2nd ed. (Wiley, New York, 1975).

Kaminow, I. P.

Katzir, A.

Y. Shani, A. Katzir, K.-H. Bachem, P. Norton, M. Tacke, H. M. Preier, Appl. Phys. Lett. 48, 1178 (1986).
[CrossRef]

Y. Shani, R. Rosman, A. Katzir, IEEE J. Quantum Electron. QE-21, 51 (1985).
[CrossRef]

Mammel, W. L.

Norton, P.

Y. Shani, A. Katzir, K.-H. Bachem, P. Norton, M. Tacke, H. M. Preier, Appl. Phys. Lett. 48, 1178 (1986).
[CrossRef]

Otto, A.

A. Otto, W. Sohler, Opt. Commun. 3, 254 (1971).
[CrossRef]

Padalka, V. G.

V. G. Padalka, I. N. Shklyarevskii, Opt. Spectrosc.(USSR) 11, 285 (1961).

Preier, H. M.

Y. Shani, A. Katzir, K.-H. Bachem, P. Norton, M. Tacke, H. M. Preier, Appl. Phys. Lett. 48, 1178 (1986).
[CrossRef]

Reisinger, A.

Rosman, R.

Y. Shani, R. Rosman, A. Katzir, IEEE J. Quantum Electron. QE-21, 51 (1985).
[CrossRef]

Shani, Y.

Y. Shani, A. Katzir, K.-H. Bachem, P. Norton, M. Tacke, H. M. Preier, Appl. Phys. Lett. 48, 1178 (1986).
[CrossRef]

Y. Shani, R. Rosman, A. Katzir, IEEE J. Quantum Electron. QE-21, 51 (1985).
[CrossRef]

Shklyarevskii, I. N.

V. G. Padalka, I. N. Shklyarevskii, Opt. Spectrosc.(USSR) 11, 285 (1961).

Sohler, W.

A. Otto, W. Sohler, Opt. Commun. 3, 254 (1971).
[CrossRef]

Tacke, M.

Y. Shani, A. Katzir, K.-H. Bachem, P. Norton, M. Tacke, H. M. Preier, Appl. Phys. Lett. 48, 1178 (1986).
[CrossRef]

Weber, H. P.

Appl. Opt. (2)

Appl. Phys. Lett. (1)

Y. Shani, A. Katzir, K.-H. Bachem, P. Norton, M. Tacke, H. M. Preier, Appl. Phys. Lett. 48, 1178 (1986).
[CrossRef]

IEEE J. Quantum Electron. (1)

Y. Shani, R. Rosman, A. Katzir, IEEE J. Quantum Electron. QE-21, 51 (1985).
[CrossRef]

Opt. Commun. (1)

A. Otto, W. Sohler, Opt. Commun. 3, 254 (1971).
[CrossRef]

Opt. Spectrosc.(USSR) (1)

V. G. Padalka, I. N. Shklyarevskii, Opt. Spectrosc.(USSR) 11, 285 (1961).

Other (1)

J. D. Jackson, Classical Electrodynamics, 2nd ed. (Wiley, New York, 1975).

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Figures (3)

Fig. 1
Fig. 1

The intensity pattern of the TE0 and TM0 modes for Ñ1 = 3.7 − i43 (solid lines), N1 = 1.0 (dashed lines), and N1 = 4.7 (dashed–dotted lines). The other waveguide parameters are N2 = 4.7, N3 = 5.0, N4 = 4.7, t3 = 1.0, and λ = 7.8 μm. (a) Pattern for TE0 with t2 = 2.0 μm. (b) Pattern for TE0 with t2 = 0.5 μm. (c) Pattern for TM0 with t2 = 2.0 μm. (d) Pattern for TM0 with t2 = 0.5 μm.

Fig. 2
Fig. 2

The effective refractive index Neff versus the active-layer thickness t3 for the waveguide described in Fig. 1.

Fig. 3
Fig. 3

Γ3 and t3α3 versus the active-layer thickness t3 for Ñ1 = 3.7 − i43 (solid lines for TE modes, dotted lines for TM modes) and N1 = 1.0 (dashed lines for TE modes, dashed–dotted lines for TM modes), (a) For t2 = 2.0 μm. (b) For t2 = 0.5 μm. The other waveguide parameters are described in Fig. 1

Tables (2)

Tables Icon

Table 1 Complex Dielectric Constant = ( N i K ¯ ) 2 of Gold at 82 Ka

Tables Icon

Table 2 Effective Refractive Indices and Losses in the Metal Region for the TE0 and TM0 Modes of Waveguides in Fig. 1

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