Research Scientist / Fellow (Fibre Optics)

Nanyang Technological University; Singapore; In loco; SGD 90.000 - 150.000; Tempo pieno

Descrizione del lavoro

Nanyang Technological University (NTU Singapore) invites applications for a Research Scientist / Research Fellow to advance next-generation high-power fiber beam combiners. The role combines advanced modeling and experimental validation in a cutting-edge fiber optics team.

You will develop and customize M&S tools using BPM and FEM (COMSOL), perform thermal analysis, and build diagnostic setups to measure insertion loss, beam quality, and temperature rise under >200 W per port.

Competenze

• PhD in Physics, Optical Engineering, Electrical Engineering, or related field.
• 4+ years in optics lab with test benches and characterization.
• Experience with BPM and COMSOL; high-power laser systems.
• Strong communication and data-driven research skills.
• Ability to collaborate in fast-paced environment.

Mansioni

• Model and simulate optical behavior in fiber beam combiners using BPM and FEM.
• Design, build, and validate diagnostic setups; measure insertion loss, beam quality, and thermal performance.

Conoscenze

Optical physics

Computational modeling

Experimental characterization

BPM

COMSOL

Thermal analysis

Formazione

PhD in Physics / Optical Engineering / Electrical Engineering

Strumenti

BPM software

COMSOL Multiphysics

Descrizione del lavoro

School of Electrical and Electronic Engineering is one of the founding Schools of the Nanyang Technological University. Built on a culture of excellence, the School is renowned for its high academic standards and research. With over 3,000 undergraduates students and 2,000 graduate students it is one of the largest EEE schools in the world and ranks 4th in the field of Electrical & Electronic Engineering in the 2025 QS World University Rankings by Subjects. Today, the School has become one of the world’s largest engineering schools that nurtures competent engineers and researchers. Each year, the School graduates over a thousand students who are ready to take on great ambitions and challenges. For more details, please view: https://www.ntu.edu.sg/eee

We are looking for a highly motivated and skilled Research Scientist /Research Fellow to join our cutting-edge fiber optics team. The role will focus on developing next-generation high-power fiber beam combiners. The successful candidate will be responsible for developing advanced modeling and simulation (M&S) tools and the establishment of comprehensive diagnostic and characterization tools. This position requires a strong background in optical physics and hands-on experience in both computational modeling and experimental characterization of optical components.

Key Responsibilities

• 1. Modelling & Simulation (M&S) Tool Development Develop and customize simulation templates using Beam Propagation Method (BPM) software (e.g., BeamProp) to model optical behavior in fiber combiners, focusing on critical areas like taper transitions and fusion zones. Utilize Finite Element Method (FEM) software (e.g., COMSOL) to perform thermal analysis, modeling heat distribution and dissipation in high-power operational conditions. Define theoretical performance benchmarks for optical characteristics such as insertion loss and beam quality by integrating real-world data, such as empirical beam profiles from high-power laser diodes. Validate simulation models by calibrating them against established literature and comparing them with empirical data from fabricated components. Collaborate with the fabrication team to diagnose sub-optimal performance by identifying discrepancies between theoretical and experimental results.
• 2. Diagnostic Characterisation & Validation Design, build, and maintain dedicated experimental setups for the characterization of high-power fiber optic components. Conduct precise measurements of key performance metrics, including insertion loss, beam quality (M²), and thermal performance under high-power loads (> 200 W/port). Develop and standardize testing procedures to ensure consistent and reliable data collection across multiple samples. Implement diagnostic methods, such as fiber index profiling and microscopic visual inspection, to analyze post-processing effects on signal fibers. Provide crucial feedback to the M&S and fabrication teams by supplying accurate characterization data, creating a closed-loop development cycle.

Job Requirements

• PhD qualification degree in Physics, Optical Engineering, Electrical Engineering or related field
• At least 4 years of relevant experiences / technical hands-on experience in an optics lab, including the design and construction of test benches and characterization of optical components (e.g., measuring insertion loss, beam quality).
• Familiarity with optical and thermal simulation software, and high-power laser systems
• Solid theoretical understanding of fiber optics, laser physics, and heat transfer.
• Good written and oral communication skills
• Proficiency in BPM and COMSOL is highly essential.
• Competent in analytical skills with the ability to bridge the gap between theoretical models and experimental results.
• Excellent problem-solving abilities and a methodical, data-driven approach to research.
• Ability to work collaboratively in a fast-paced environment.

We regret to inform that only shortlisted candidates will be notified.

Hiring Institution

NTU A research-intensive public university, Nanyang Technological University, Singapore (NTU Singapore) has 33,000 undergraduate and postgraduate students in the Engineering, Business, Science, Humanities, Arts, & Social Sciences, and Graduate colleges. It also has a medical school, the Lee Kong Chian School of Medicine, established jointly with Imperial College London. NTU is also home to world-class autonomous institutes – the National Institute of Education, S Rajaratnam School of International Studies, Earth Observatory of Singapore, and Singapore Centre for Environmental Life Sciences Engineering – and various leading research centres such as the Nanyang Environment & Water Research Institute (NEWRI) and Energy Research Institute @ NTU (ERI@N). Ranked amongst the world’s top universities by QS, NTU has also been named the world’s top young university for the past seven years. The University’s main campus is frequently listed among the Top 15 most beautiful university campuses in the world and has 57 Green Mark-certified (equivalent to LEED-certified) buildings, of which 95% is certified Green Mark Platinum. Apart from its main campus, NTU also has a campus in Novena, Singapore’s healthcare district. Under the NTU Smart Campus vision, the University harnesses the power of digital technology and tech-enabled solutions to support better learning and living experiences, the discovery of new knowledge, and the sustainability of resources.

For more information, visit www.ntu.edu.sg