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GaAs-(GaAl)As Double-Heterojunction Injection Laser with a Pillbox Resonator

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Pillbox resonator(1) is among one of the earliest circuit components suggested for integrated optics and considered especially useful in wavelength multiplexing. However, before such integrated optical circuits can be realized, certain features associated with a curved waveguiding structure must be understood and thus they can be either overcome or utilized. One obvious problem is the excess loss caused by radiation and scattering in a curved guide. This problem has been studied(1-3) both theoretically and experimentally, and is well understood. An equally important but more complex problem is the coupling between a curved and straight guide. This latter problem has not been extensively stuided.

© 1980 Optical Society of America

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