Scientist (Photonics), IME

A*STAR - Agency for Science, Technology and Research; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

A*STAR - Agency for Science, Technology and Research in Singapore is looking for a Designer/Scientist for its Silicon Photonics Department. The role involves designing high-speed modulators for advanced communications systems and requires a PhD in Integrated Photonics or a related field. Candidates should have proven skills in high-speed EO modulator design and proficiency with simulation tools like Keysight ADS and Ansys Lumerical. This position offers the chance to work in a dynamic team focused on developing next-generation photonics technology.

Qualifications

• PhD in a relevant field such as Integrated Photonics or Electrical Engineering.
• Track record in designing high-speed electro-optic modulators.
• Experience with photonics and RF simulation software.

Responsibilities

• Design high-speed thin-film lithium niobate modulators.
• Perform RF modelling of electrodes for impedance and microwave loss.
• Collaborate with project team to ensure quality and timely project delivery.

Skills

High-speed EO modulator design

Photonics simulation tools

Strong communication

Self-motivation

Education

PhD in Integrated Photonics, Opto-electronics, Physics, Electrical/Electronic Engineering

Tools

Keysight ADS

Cadence

Ansys Lumerical

Ansys HFSS

Job description

Designer/Scientist for Silicon Photonics Department

As part of NSTIC’s Silicon Photonics Department, the candidate will be working on the design of high-speed modulators. You will work closely with an excellent multidisciplinary team involving photonics, semiconductor process, and fab operation to realize next‑generation photonic integrated chips using our industry‑grade fabrication facilities.

Responsibilities

• Design of high-speed thin‑film lithium niobate (TFLN) modulators aiming for next‑generation communications systems up to 400 G/lane.
• Perform RF modelling of electrodes including impedance matching, velocity matching and microwave loss.
• Co‑work with EIC driver design and system packaging team to optimize TFLN modulators and packaging parasitics.
• Drive the layout and design rule definition for 8‑inch/12‑inch wafer platforms, ensuring designs are robust for PDK‑level repeatability. Data analysis and documentation.
• Preparation of technical presentations and papers for internal meetings, as well as conferences and journals.
• Collaborate with project team to ensure quality and on‑time delivery for various projects.

Qualifications

• PhD in Integrated Photonics, Opto‑electronics, Physics, Electrical/Electronic Engineering or equivalent.
• Proven track record in high‑speed electro‑optic (EO) modulator design. Deep understanding of the TFLN material platform (LNOI) is highly preferred.
• Experience in simulation software such as Keysight ADS or Cadence for interfacing with driver circuits is a plus.
• Proficiency in photonics simulation tools (Ansys Lumerical) and RF simulation tools (Ansys HFSS, Keysight ADS) for circuit‑level analysis.
• Strong communication and ability to work well in a large team.
• Strong self‑motivation and interest in the next‑generation photonics technology development.
• Industry experience and awareness is a plus.