Enge Zhang
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View article: Optical phased array receiver with mode diversity and coherent combination
Optical phased array receiver with mode diversity and coherent combination Open
Optical phased arrays (OPAs) hold significant promise for low-cost, solid-state beam steering in LiDAR and free-space optical (FSO) communications. The field of view (FOV) is one of the key performance metrics in OPA for both optical beam …
View article: Silicon Nitride Spot-Size Converter with Coupling Loss < 1.5 dB for Both Polarizations at 1W Optical Input
Silicon Nitride Spot-Size Converter with Coupling Loss < 1.5 dB for Both Polarizations at 1W Optical Input Open
Microwave photonics (MWP) applications often require a high optical input power (>100 mW) to achieve an optimal signal-to-noise ratio (SNR). However, conventional silicon spot-size converters (SSCs) are susceptible to high optical power du…
View article: Effective and group refractive index extraction and cross-sectional dimension estimation for silicon-on-insulator rib waveguides
Effective and group refractive index extraction and cross-sectional dimension estimation for silicon-on-insulator rib waveguides Open
The accurate determination of the effective and group refractive indices ( n eff and n g ) of optical waveguides as a function of wavelength is of critical importance to the design of photonic integrated circuits (PICs). This paper demonst…
View article: Single-stage 2 × 2 silicon thermo-optic switch with crosstalk < −35 dB over 40 nm and Pπ < 8 mW
Single-stage 2 × 2 silicon thermo-optic switch with crosstalk < −35 dB over 40 nm and Pπ < 8 mW Open
The Mach–Zehnder interferometer (MZI) optical switch is a fundamental component in constructing photonic integrated circuits for broadband optical signal routing. Its performance is mainly determined by the 2 × 2 optical coupler and the ph…