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An InP-based 90° hybrid OEIC with integrated pin-photodiodes is presented. It operates unaffected in the temperature range of 15°-35° C, offering low PDL <;1 dB, and stable performance in the wavelengths of 1530 nm to 1565 nm.
A monolithically integrated InP 90deg hybrid incorporating waveguide balanced photodiodes is presented. Stable performance is achieved over a wavelength range from 1530 nm to 1565 nm.
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