1 February 1992 The Superflat coupler and its application as a wideband attenuator
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The fabrication of a device which operates beyond the cutoff of the antisymmetric supermode of a coupler is described. The result is a coupler, henceforth referred to as a Superflat™, which holds its coupling ratio to +/- 1% over the wavelength range of 1200 nm to 1600 nm, and yet exhibits losses as low as 0.3 dB. Applications in test and measurement, CATV, and as an all-fiber, fixed attenuator are discussed.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daniel R. Campbell, Daniel R. Campbell, David W. Stowe, David W. Stowe, "The Superflat coupler and its application as a wideband attenuator", Proc. SPIE 1580, Fiber Optic Components and Reliability, (1 February 1992); doi: 10.1117/12.135377; https://doi.org/10.1117/12.135377

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