A Two-Mode (De)Multiplexer Based on Multimode Interferometer Coupler and Y-Junction on InP Substrate

A Two-Mode (De)Multiplexer Based on Multimode Interferometer Coupler and Y-Junction on InP Substrate

A two-mode (de)multiplexer [(DE)MUX] based on a multimode interferometer coupler and a symmetric Y-junction coupler is proposed and demonstrated on an InP substrate. By introducing a phase shifter section with a thickness-detuned core layer, a miniature two-mode (DE)MUX with mode conversion of 100%...

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Bibliographic Details
Main Authors: Fei Guo, Dan Lu, Ruikang Zhang, Huitao Wang, Chen Ji
Format: Article
Language:English
Published: IEEE 2016-01-01
Series:IEEE Photonics Journal
Subjects:
Multiplexing
semiconductor waveguides
phase shifters
Online Access:https://ieeexplore.ieee.org/document/7396938/
Description
Summary:A two-mode (de)multiplexer [(DE)MUX] based on a multimode interferometer coupler and a symmetric Y-junction coupler is proposed and demonstrated on an InP substrate. By introducing a phase shifter section with a thickness-detuned core layer, a miniature two-mode (DE)MUX with mode conversion of 100% is designed and demonstrated. Simulation shows that the total length of the device can be as small as 446 &#x03BC;m: much shorter than other mode (DE) MUX in InP materials. Within the entire C-band wavelength range, the calculated insertion loss of the device is less than 0.7 dB, and the crosstalk is below -24 dB. A mode (DE) MUX was fabricated in InP materials, and the mode conversion of the TE<sub>0</sub> and TE<sub>1</sub> modes were successfully demonstrated.
ISSN:1943-0655

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