# Zhizhi Raphael Yang's Resume (beta)

Photonics Research Group, Department of Information Technology\
Ghent University (UGent) – Zwijnaarde Campus\
Technologiepark-Zwijnaarde 126, Ghent 9052, Belgium\
Email: <Zhizhi.Yang@UGent.be>\
LinkedIn: <https://www.linkedin.com/in/link2zhizhiyang/>

***

## Work Experience

### FPGA Validation Design Engineer (2021.9 – 2022.6)

**Lattice Semiconductor**, Shanghai, China

* Highlighted project: Validation of the SerDes hard IP, Configuration IP of Lattice FPGA (Avant Platform) in both RTL simulation (Cadence irun) and on-board experiment.

### Ph.D. Researcher in Integrated Photonics (2022.7 – present)

**Photonics Research Group at Ghent University**, Gent, Belgium

* Highlighted project: Silicon photonics-based Brillouin Optical Time-domain Analyzer for lossless civil infrastructure sensing and testing.

***

## Educational Qualification

### Master of Science in Engineering in Physical Electronics (2018.6 – 2021.4)

**Nanjing University of Aeronautics and Astronautics (NUAA)**, Nanjing, China

* Highlighted courses: Machine learning, Optimization Theory and Application, Modern Communication Photonics.

### Bachelor of Engineering in Electronic Information Science and Technology (2014.9 – 2018.6)

**Nanjing University of Aeronautics and Astronautics (NUAA)**, Nanjing, China (GPA: 83/100)

* Highlighted courses: Complex analysis (95/100), Digital Circuits (92/100), C Languages Programming (exempted).

### Exchange Student in Electronic Engineering (2017.2 – 2017.6)

**Tamkang University**, Taipei, Taiwan (GPA: 90/100)

* Highlighted courses: Digital Communication System (98/100), Patent of Information Technology (94/100), IoT (90/100).

***

## Publications

1. *Conference* **Zhizhi Yang**, Pieter Sanczuk, Louise Terryn, Pieter De Frenne, Hans Verbeeck, Emma Van de Walle, Kim Calders, Bart Kuyken, Roel Baets, Yanlu Li, “Evaluation of the effects of direct solar radiation on fiber-based distributed temperature sensing,” *Remote Sensing for Agriculture, Ecosystems, and Hydrology XXVI*, 2024. <https://doi.org/10.1117/12.2687508>
2. *Journal* Menghao Huang, Simin Li, **Zhizhi Yang**, and S. L. Pan, “Analysis of flat-top optical ring resonator,” *Optics Communications*, vol. 451, pp. 290–295, Nov. 2019. <https://doi.org/10.1016/j.optcom.2019.06.038>
3. *Conference* **Zhizhi Yang**, Simin Li, Zhenzhou Tang, Menghao Huang, Shilong Pan, “Two-stage XOR electro-optic directed logic gates based on a reflective-type microring resonator,” *SPIE/COS Photonics Asia*, accepted. <https://doi.org/10.1117/12.2573309> (EI Index)
4. *Conference* **Zhizhi Yang**, Zhenzhou Tang, Simin Li, Shilong Pan, “Resonant frequency drifting characteristic of the Mach-Zehnder interferometer coupler assisted reflective-type microring resonator,” *The International Topical Meeting on Microwave Photonics 2020*, accepted. <https://doi.org/10.23919/MWP48676.2020.9314402> (EI Index)
5. *Conference* Emma Van de Walle, Steven De Hertog, Félicien Meunier, Kim Calders, Pieter De Frenne, **Zhizhi Yang**, Yanlu Li, Michiel Stock, Louise Terryn, Pieter Sanczuk, Tom Verhelst, Hans Verbeeck, “Modelling and measuring forest microclimate at high spatiotemporal resolution,” *Microclimate Ecology and Biogeography (ME\&B)*, 2024.
6. *Conference* Emma Van de Walle, Steven De Hertog, Félicien Meunier, Kim Calders, Pieter De Frenne, **Zhizhi Yang**, Michiel Stock, Louise Terryn, Pieter Sanczuk, Tom Verhelst, Hans Verbeeck, “Quantifying and modelling feedbacks between forest structure, light, microclimate and carbon cycling in temperate forests,” *EGU General Assembly 2024*, 2024.
7. *Conference* Emma Van de Walle, Steven De Hertog, Félicien Meunier, Kim Calders, Pieter De Frenne, Yanlu Li, Michiel Stock, Louise Terryn, Pieter Sanczuk, Tom E Verhelst, **Zhizhi Yang**, Hans Verbeeck, “Microclimate modelling from forest core to edge,” *EGU25*, 2025, EGU25-4029.

***

## Research Project

### Photonics Research Group, UGent — PhD Researcher (2022.7 – present)

* **Fabrication of a Brillouin-based fiber optic sensing readout device using silicon photonic integration**
  * **On-chip Brillouin Optical Time-domain Analyzer for fiber based distributed temperature sensing**
    * Description: The first time to realize a BOTDA fiber distributed sensing readout device through Silicon Photonics.
  * **Silicon photonics-based on-chip polarization compensation unit for BOTDA**
    * Description: Proposed a method to eliminate polarization state differences; more time efficient than a traditional scrambler approach.
* **Distributed temperature monitoring within a forest using a fiber-based distributed temperature sensor**
  * Description: Designed a solar-powered power supply system to enable operation without electricity, using AP Sensing’s distributed temperature sensor.

### Integrated Microwave Photonics Group, NUAA — Graduate study (2018.9 – 2021.4)

* **Research on Reflective-Type Microring Resonator (RT-MRR)**

  * Wavelength drifting property investigation — Key Researcher (2019.5 – 2021.4)

  **Description:** RT‑MRR uses a Mach–Zehnder Interferometer coupler for tuning; resonant wavelength drifting can degrade performance, motivating study of the mechanism.

  **Contributions and Achievements:**

  * Proposed an analytical model predicting RT‑MRR wavelength drifting under different phase shifts.
  * Experimentally verified on a fabricated RT‑MRR on the TriPleX Si3N4 platform.
  * Studied integrated optics, optical waveguide theory, microring resonators, silicon photonics design, and transmission matrix method theory.
  * Built a Windows instrument hub for automated testing/data collection/tuning in batch to support large-scale evaluation.
  * Publications: *Optics Communications* (second author), *IEEE MWP2020* (first author), and a working-on manuscript (first author).
* **Two-stage XOR Electro-optic Logic Gates based on RT-MRR** — Key Researcher (2018.11 – 2019.11)

  **Description:** Conventional cavity-based optical logic often requires at least two microrings for XOR/XNOR; RT‑MRR enables a two-stage XOR electro-optic logic gate with reduced footprint and fewer control parameters.

  **Contributions and Achievements:**

  * Proposed a novel two-stage XOR electro-optic logic gate based on RT‑MRR.
  * Demonstrated via transmission-matrix-method simulation.
  * Published a conference paper in *Photonics Asia 2020* (first author).
* **Digital Circuit Course Design** — Undergraduate project (2016)
* **An Implementation of Digital Clock with Texas Instrument MCU MSP430G2**

  **Description:** Implemented a digital clock in C++ using TI MSP430G2553 MCU and CD4511, 74LS138, buzzer, and seven-segment tubes; Timer and Alarm implemented as bonus features.

  **Contributions and Achievements:**

  * Used MCU hardware timers for accurate timing, lower power, and non-blocking main loop.
  * Implemented timer and editable alarm with light/sound alert.
  * Used low-power mode of MSP430G2553 to reduce consumption.
  * Demo video: <https://youtu.be/vIp3YAmMh30>

***

## Skills

* **Language:** TOEFL 106 (R28 L29 S23 W26); GRE 323 (Q169 V154) with 3.0 writing.
* **Mathematical skills:** Advanced Mathematics, Probability Theory, Matrix Theory, Mathematical Statistics, Complex Analysis.
* **Computer skills:**
  * Optical/Electrical Engineering tools: Lumerical FDTD/MODE, KLayout, L-Edit, Multisim, Xilinx Vivado.
  * Verilog HDL, Data structure and algorithm, C, MATLAB, Lumerical Script Language, Python (PyCharm, Jupyter Notebook)

***

## Competition

* **First Prize**, National Undergraduate Electronic Design Contest (Jiangsu), 2016 — team leader
  * Design target: Digital Pulse Signal Characterization Instrument (10 Hz – 2 MHz); practical measurement 1 Hz – 50 MHz.
  * Developed waveform analysis algorithm on Xilinx Basys3 using Verilog HDL (frequency, period, rise/fall time, duty cycle).
  * Designed UI in C++ using MSP430f5529; designed sampling/processing structure.
* **First Prize**, National Student FPGA Innovation Competition, 2018 — team leader
  * Design target: Control system for microwave photonic low phase noise microwave source.
  * Simulated and designed acquisition/processing/feedback control architecture.
  * Implemented closed-loop control algorithms and control protocols for discrete devices (electronically controlled delay lines, TEC, etc.).

***

## Involvement and Honors

* Vice President of SPIE Student Chapter (NUAA Club), 2019 – 2021.
* Outstanding Student Scholarship (Grade 1) for Postgraduate, NUAA (Top 10%), 2018 – 2021.
* Outstanding Student Scholarship (Grade 2) for Undergraduate, NUAA (Top 15%), 2016 – 2017.
* Outstanding Student Scholarship (Grade 3) for Undergraduate, NUAA (Top 30%), 2015 – 2016, 2017 – 2018.

***

## Hobbies

* Photography and video logging, 3D printing, backpacking travel (Europe 2018; around Taiwan during exchange 2017).


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