Performance analysis of 90° hybrid for InP monolithic coherent photodetector at L-band

Performance analysis of 90° hybrid for InP monolithic coherent photodetector at L-band

An optical 90° hybrid monolithic with a 4-channel photodetector array is characterized and analyzed. The fabricated chip exhibits a phase error within ±10° and a common rejection ratio exceeding 13.6 dB over 40 nm range in the L-band. A taper structure is adopted at hybrid inputs and outputs to impr...

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Bibliographic Details
Main Authors: Chu, Y. (Author), Geng, L. (Author), Han, Q. (Author), Wang, S. (Author), Xiao, F. (Author), Ye, H. (Author)
Format: Article
Language:English
Published: Elsevier B.V. 2022
Subjects:
90° hybrid
90°-hybrids
Common mode rejection ratio
Common-mode rejection ratios
Errors
Fabrication
Fabrication error
Fabrication errors
III-V semiconductors
Indium phosphide
InP monolithic integration
Monolithic integrated circuits
Monolithic integration
Monolithics
Optical 90° hybrid
Performances analysis
Phase error
Photodetectors
Photons
Semiconducting indium phosphide
Spectral response
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