Investigation of Mach-Zehnder interferometer properties based on PLC technology

We report investigations of three types of silica-based thermo-optic modulating Mach-Zehnder interferometers (MZIs). They are widely used in optical communication and quantum photonics. Three types of MZIs are fabricated. The waveguide structure and fabrication process are paid special attention. Th...

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Bibliographic Details
Published in:Optoelectronics letters 2018-05, Vol.14 (3), p.170-174
Main Authors: Ren, Mei-zhen, Zhang, Jia-shun, An, Jun-ming, Wang, Yue, Wang, Liang-liang, Li, Jian-guang, Wu, Yuan-da, Yin, Xiao-jie, Hu, Xiong-wei
Format: Article
Language:English
Subjects:
Attenuation
Interferometers
Lasers
Mach-Zehnder interferometers
Optical communication
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Power consumption
Response time
Silicon dioxide
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Summary:We report investigations of three types of silica-based thermo-optic modulating Mach-Zehnder interferometers (MZIs). They are widely used in optical communication and quantum photonics. Three types of MZIs are fabricated. The waveguide structure and fabrication process are paid special attention. The power consumption is less than 250 mW for all MZIs. The polarization dependent loss (PDL) at the same attenuation using the upper heater is less than that using the lower heater for the three types of MZIs. In addition, it is found that the PDL at the same attenuation increases gradually for π, 2π and 0 phase differences. The measured response time of the three types of MZIs is less than 1.8 ms.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-018-8008-y