CLEO2012 Kou Yoshiki


CLEO2012@SAN JOSE Report

Tanabe Laboratory, 1st year master's student, Wataru Yoshiki

I attended CLEO2012@San Jose held from May 6 to May 11, 2012, and gave one oral presentation. In this report, I would like to briefly summarize my impression of CLEO2012.

Wataru Yoshiki

General impression]

This was my first trip to the U.S. (overseas), and although I worked with Tanabe during the CLEO, the rest of the time I was on my own, so it was a bit of an adventure for me personally. San Jose is a spacious city. It was sunny and summery all through the event, but the humidity was low, so the heat was pleasantly different from summer in Japan.
CLEO is a very large international conference on optics with more than 1000 oral presentations. People gathered from all over the world and had lively discussions. Among them, there were many Chinese participants, and almost half(?) of the presenters were Chinese. Nearly half(?) of the presenters were of Chinese descent. In contrast, the number of Japanese presentations was less than 10%. I strongly felt that Japanese people should go abroad more actively.

About my presentation]

I gave a presentation entitled "Rigorous analysis of bistable memory in silica toroid microcavity" (presentation number: CM2M.8). This is a study to investigate the feasibility of optical Kerr bistable memory in silica toroid microcavity by numerical analysis. There were about 20 to 30 people in the audience, probably because the presentation was given at the end of the morning session. The presentation itself went without a hitch, but the Q&A session in English was very difficult. The questions were about switching speed and absorption loss. I think this was a good thing, because the fact that the audience asked questions means that they were listening with some interest.

Wataru Yoshiki

Noteworthy Presentations, Recent Developments

Research on silicon photonics was very active at CLEO. The fact that a short course on silicon photonics was opened this year shows the level of interest in this field. The number of presentations by researchers from companies such as IBM and Luxtera, who are aware of the commercialization of their research, was also remarkable. The number of presentations by corporate researchers, such as IBM and Luxtera, with an eye to commercialization was also noticeable.
In addition, the session on optical frequency comb, a field also related to our laboratory, was very exciting (there is a session dedicated to frequency comb). (There is a session dedicated to frequency comb.) In particular, the Cornell University group's presentation on on-chip frequency comb generation attracted a standing-room-only crowd. In addition to Cornell, the frequency comb session included presentations by Vahala and Weiner's group, Max-Plank Labs, JPL, and others, clearly indicating that world-renowned groups are entering this field.
Of personal interest was a presentation by the Vahala group at Caltech on ultra-high-Q wedge resonators with Precise FSR control, " Ultra-High-Q Wedge Resonators with Precise FSR control" (presentation no: CM1M.1). In this research, the Q value of the disk resonator before reflow was reduced by the effect of scattering due to surface roughness, but in this research, Q>8×108 was achieved by pushing the WG mode distribution deep into the resonator surface by sharply angling the disk sides and suppressing the effect of surface roughness.

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It was a great experience for me to participate in CLEO2012. The world of research has become more internationalized than I had expected. I have decided to devote more time to English than ever before. I will devote myself to my research this year so that I will be able to contribute to CLEO next year.