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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