CLEO 2018 Pacific Rim Ryo Suzuki

Research

CLEO Pacific Rim 2018 Participation Report

Ryo Suzuki, Doctoral Student, Tanabe Laboratory

We are writing to inform you of the following matter.

record

Participating Conferences

Conference: The 13th Pacific Rim Conference on Lasers and Electro-Optics (CLEO Pacific Rim 2018)

Dates: July 29 - August 3, 2018

Location: Hong Kong Convention and Exhibition Centre, Hong Kong

2. about CLEO Pacific Rim 2018

CLEO Pacific Rim is an international conference related to optics and photonics held in the Asian region every two years, and has a large number of submissions from Chinese and other Asian universities. This year the conference will be held in Hong Kong, and two years later in Sydney, Australia. My personal impression of the conference was that while many well-known researchers were invited as invited speakers, the number of general submissions was not very large, and many of the presentations and contents were at the so-called student level. The session related to Microcomb, which is the subject of the presenter's research, attracted a large number of attendees. In recent years, it has become easy to share research results on the Internet, and most of the research was already known through papers and arXiv. It was a good conference as the first international conference for master's students to attend, and I think that current 4th and 3rd year undergraduates should consider submitting a paper for Sydney in two years.

3. Presentation by the presenter

Calculation results obtained using the Lugiart-Lefever equation for dual-comb generation in a micro optical resonator are reported. This is the first time to present only theoretical results, since the presenter has been working mainly on experiments. Unlike the experimental results, it is difficult to give detailed information during the presentation, but I tried to give a general outline of the contents. Although this was an oral presentation, I felt that a poster presentation would allow a more detailed discussion of the results of a theory-only study. After this presentation, I received positive feedback from several people, including researchers from Prof. Stéphane Coen's group, and I felt that it is important to conduct research on topics that are of interest to the public.

4. related announcements

W2F.2: High-resolution spectroscopy using a tunable dissipative Kerr soliton microcomb

Yong Geng et al., Univ of Electronic Science & Tech China

Although I have always read papers by microcomb research groups, I first became aware of this research group at this conference, where they confirmed soliton microcomb generation using a silicon nitride ring resonator, but with two lasers (pump and auxiliary lasers). One of the major problems in soliton microcomb generation is that the coupling of the pump laser to the resonator is thermally unstable. In this study, by pumping the auxiliary laser to the blue-detuning side, we compensated for the unstable coupling of the pump laser (red-detuning side) and obtained stable coupling of the pump laser and soliton microcomb generation. This idea is easily conceivable for microcomb researchers (in fact, I had considered it), but I felt that the key to success in this research is to be able to bring it to the stage where it can be studied in detail and demonstrated. In fact, considering the past examples of Tanabe Laboratory, we had been able to obtain initial ideas that anyone could have thought of, such as waveform shaping of microcomb, dual-comb generation of cw-ccw propagation, and crystal resonators with heat sinks. However, what was lacking, I felt, was a reasoned consideration of what phenomena were actually expected to occur, what parameters and equipment were needed, and what results and benefits could be obtained at the end.

W2B.4: Efficient four-wave mixing using CMOS-compatible ultra-silicon-rich nitride photonic crystal waveguides

Ezgi Sahin et al, Singapore Univ. of Technology and Design et al

ultra-silicon-rich nitride (Si7N3Silicon nitride, which is often used in microcomb research, is a silicon nitride material that is used in Si3N4is the This Si7N3has a nonlinear refractive index of 2.8×10-13 cm2/W (Si3N4In a photonic crystal waveguide with a waveguide length of 776 µm, a conversion efficiency of -37 dB was obtained for an input light of 13 dBm.

Conferences
Conference Presentations
Night view of Hong Kong from near the conference venue
Night view of Hong Kong from near the conference venue