High-speed dual-wavelength demultiplexing and detection in a monolithic superlattice p-i-n waveguide detector array

Larsson, A.; Andrekson, P. A.; Andersson, P.; Eng, S. T.; Salzman, J.; Yariv, A.
August 1986
Applied Physics Letters;8/4/1986, Vol. 49 Issue 5, p233
Academic Journal
We demonstrate high-speed (1 Gbit/s) dual-wavelength demultiplexing and detection in a monolithic linear array of superlattice p-i-n photodetectors in a waveguide configuration. A crosstalk attenuation of 28 dB was achieved between two digital transmission channels with an interchannel wavelength spacing of 30 nm. The device performance is a result of an enhanced electroabsorption due to the quantum-confined Stark effect in the superlattice p-i-n diodes.


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