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Monolithically integrated wavelength converter based on semiconductor optical amplifier with distributed feedback laser diode is fabricated. Gain recovery time of 7 ps is achieved for the semiconductor optical amplifier in experiment with simulated optimization.
A theoretically predicted concept for a monolithically integrated optical waveguide isolator is experimentally demonstrated for the first time. Preliminary non-reciprocity measurements indicate isolation ratios in the range of the design values, proving the device's potential.
To achieve the high bandwidths required for 40 Gb/s (and higher) fiber optic receivers it will be necessary to abandon conventional single-pass, normal-incidence photodiodes in favor of waveguide structures. Some of the issues to be addressed as waveguide photodiodes are developed for high-bit-rate applications include input coupling, RF design, saturation at high current levels, and integration to...
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