Author:
Zhao Yingxuan,Huang Haiyang,Qiu Chao,Sheng Zhen,Gan Fuwan
Abstract
We present a novel compact and temperature insensitive Mach-Zehnder interferometer based on bi-level taper and a multimode waveguide. The wavelength thermal dependence of the device is around 15pm/°C in the wavelength range of 50nm.