CLEO 2018 Pacific Rim Shun Fujii

2018-01-17 2022-09-24 miyahara

Research

CLEO Pacific Rim 2018 Return Report

Shun Fujii, 1st year doctoral student

Dates: July 29~August 3, 2018

Venue: Hong Kong Convention and Exhibition Centre, Hong Kong

About the Conference

I attended CLEO Pacific Rim 2018 held in Wan Chai, Hong Kong from July 29 to August 3. CLEO PR is a branch of the original CLEO and alternates every year with CLEO Europe, which is often held in Germany. （The conference is held in the US every year (i.e., CLEO Europe @Munchen next year and CLEO PR @Sydney the year after). (i.e., CLEO Europe @Munchen next year and CLEO PR @Sydney the year after). Hong Kong is an independent administrative region of China, and the influence of its long history as a British colony can be seen in many aspects, such as the cityscape and language. (And yet the currency is the Hong Kong dollar!) Hong Kong is said to have one of the world's highest population densities, and the city is crowded with people and cluttered with high-rise buildings. The level of education in Hong Kong is said to be very high, and young hotel staff speak beautiful English. On the other hand, it was often the case that English was not understood at all in cabs and restaurants in town. During the daytime, it is very hot and sunny, but it becomes comfortable around 9:00 p.m., and the streets are filled with people of all nationalities.

2. introduction of your presentation and the presentations you have attended

My presentation was on the generation of optical carcoms under the influence of higher-order dispersion, and the content was the same as that presented at ALPS in April. This was the fifth time for me to give an oral presentation at an international conference, and I no longer feel extremely nervous, but it is always difficult to organize a presentation while watching the audience's reaction. In this respect, the presentations by the invited speakers are very informative because they have the ability to draw the audience in.

Overall, there were few microcomputer presentations, and only two sessions that looked like microcomputers: "Nonlinear Optics in Microresonators" and "Solitons and Temporal Wave Guiding, and Frequency Comb". This indicates the recent trend of microcomputers being swallowed up by other sessions that are not dedicated to microcomputers, due to the shift toward application-oriented research.

Among them, we introduce a presentation (W2F.2) in which we proposed a method of using two lasers, a pump laser and an auxiliary laser, to generate solitons. Usually, various techniques such as "wavelength scan," "power kicking," and "backward tuning The reason for this is that the soliton generation is not stable. The reason for this is that stable generation of solitons requires control of the heat in the resonator at the equilibrium point, and many methods have been developed to overcome this thermal problem. In this study, we proposed a new method in which an auxiliary laser is placed in a resonance mode in advance, and another pump laser is used to sweep a different resonance mode, thereby changing the balance of heat in the resonator and stably obtaining a soliton. This method itself has already been presented at CLEO:2018 (JTu2A.148), and in this CLEO PR, high-resolution spectroscopy using solitons generated by the method was demonstrated.