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Vertically tapered InGaAsP/InP waveguides for highly efficient coupling to flat-end single-mode fibers (1994)

Brenner, T. ; Bachmann, M. ; Melchior, H.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 65 (1994), S. 798-800

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: We report on InGaAsP/InP optical waveguide tapers for efficient coupling to flat-end single-mode fibers. These integrated tapers are realized by an optoelectronic integrated circuit compatible diffusion limited etch process for the vertically tapered core layer and a selective area regrowth for the upper cladding. The smoothly etched vertical tapers and the excellent quality of the regrown layers show low scattering and radiation losses. Polarization insensitive fiber to waveguide coupling losses are below 1 dB and relaxed alignment tolerances are ±2.5 μm in the horizontal and vertical, and 28 μm in longitudinal directions for 1 dB in addition.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.112233

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