26th Australian Institute of Physics Congress and the Australian and New Zealand Conference on Optics and Photonics

Session

ANZCOP: Raman Lasers & Nonlinear Frequency Conversion

ANZCOP

10 Dec 2026, 11:00

Belinda Hutchinson Building (The University of Sydney )

Conveners

ANZCOP: Raman Lasers & Nonlinear Frequency Conversion

• Mallika Suresh (Department of Physics, University of Otago)

200. Extreme linewidth narrowing in diamond Raman lasers

Osama Terra (Macquarie University)

10/12/2026, 11:00

ANZOS | Photonics and Optics (ANZCOP)

Invited talk

Lasers that combine ultranarrow linewidths with high output power over a broad spectral range are critical for quantum technologies and space applications. Diamond Raman Lasers (DRL) with intracavity frequency doubling provide a versatile platform for generating single-frequency, high-power lasers at wavelengths that are hard to reach. This capability is enabled by the frequency shift...

395. Tunable idler wave generation via switching wave linear-wave interactions in a pulsed-driven fibre resonator

Yiqing Xu (University of Auckland)

10/12/2026, 11:30

ANZOS | Photonics and Optics (ANZCOP)

Contributed Oral

The generation of coherent frequency combs via the excitation of temporal cavity solitons in passive Kerr resonators is a well-established phenomenon. While temporal cavity solitons offer broadband spectra, they can suffer from temporal jitter and require stringent control of parameters for stable operation. Alternatively, pulsed-driven Kerr resonators operating in the normal dispersion regime...

252. Power and frequency transfer dynamics of a multi-wavelength pumped thulium fiber amplifier for orthogonalised control

Lucas Kemperman (OzGrav, Adelaide University)

10/12/2026, 11:45

ANZOS | Photonics and Optics (ANZCOP)

Contributed Oral

Single-frequency, thulium fiber master-oscillator power amplifiers (MOPAs) operating in the 2 μm spectral region are promising high-power, low-noise sources for future-generation gravitational-wave detectors. Understanding how pump and seed power fluctuations couple to amplifier output power and frequency is essential in designing active stabilisation schemes. This has been investigated for...

530. Pump noise transfer in doubly resonant Raman laser

Bipin Kumar (Macquarie University)

10/12/2026, 12:00

ANZOS | Photonics and Optics (ANZCOP)

Contributed Oral

Single-longitudinal-mode (SLM) Raman lasers are emerging as powerful light sources for quantum technologies and optical clock applications due to their linewidth-narrowing and wavelength-shifting capability. Recent work has shown significant narrowing of the pump intrinsic linewidth in Raman lasers through a phonon damping mechanism analogous to linewidth narrowing in Brillouin lasers....

484. Building a ultra-high power photoneutralization cavity for enabling fusion energy

Craig Cahillane (Syracuse University)

10/12/2026, 12:15

ANZOS | Photonics and Optics (ANZCOP)

Contributed Oral

As global energy demands rise, fusion energy production poses the possibility of generating clean, decarbonized power to the grid. Magnetic-confinement tokamak fusion plasma devices like ITER in Europe or SPARC in the U.S. are currently under construction as energy-positive pathfinders to a full fusion power plant (called DEMO in Europe, ARC in the U.S.). To actually deliver electricity to...