Dongyue Sun, Shi Zhao, Mingyu Zhu, Daoxin Dai, Yaocheng Shi
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引用次数: 0
Abstract
We propose and demonstrate a polarization-insensitive optical switch on a 220 nm silicon-on-insulator (SOI) platform. The device utilizes a Mach-Zehnder interferometer (MZI) structure composed of an ultra-wide waveguide with nearly identical effective indices and thermo-optical coefficients for the transverse electric (TE) modes. A mode rotator based on mode hybridization facilitates the conversion between TM0 and TE1. The fabricated device exhibits polarization-insensitive characteristics within the wavelength range of 1500-1600 nm, with an extinction ratio exceeding 18 dB, insertion loss below 1.9 dB, and a switching power consumption of 33.2 mW for the TE mode and 33.8 mW for the TM mode, differing by less than 2%. Additionally, the calibration power for the two polarizations is 1.0 mW and 1.7 mW, both less than 5% Pπ.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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