TY - JOUR
T1 - Design of a passively mode-locking whispering-gallery-mode microlaser
AU - Suzuki, Tomoki Prugger S.L.
AU - Nakashima, Ayata
AU - Nagashima, Keigo
AU - Ishida, Rammaru
AU - Imamura, Riku
AU - Fujii, Shun
AU - Set, Sze Yun
AU - Yamashita, Shinji
AU - Tanabe, Takasumi
N1 - Funding Information:
Japan Society for the Promotion of Science (JP18K19036, JP19H00873, JP18H05238); Amada Foundation; Ministry of Education, Culture, Sports, Science and Technology (Q-LEAP).
Publisher Copyright:
© 2021 Optica Publishing Group
PY - 2021/10
Y1 - 2021/10
N2 - Ultrahigh-repetition-rate lasers will become vital light sources for many future technologies; however, their realization is challenging because the cavity size must be minimized. Whispering-gallery-mode (WGM) microresonators are attractive for this purpose since they allow the strong light–matter interaction usually needed to enable mode locking. However, the optimum parameter ranges are entirely unknown since no experiments have yet been conducted. Here, we numerically investigate pulsed operation in a toroidal WGM microresonator with gain and saturable absorption (SA) to study the experimental feasibility. We show that dispersion is the key parameter for achieving passive mode locking in this system. Moreover, the design guideline provided in this work can apply to any small resonators with gain and SA and is not limited to a specific cavity system.
AB - Ultrahigh-repetition-rate lasers will become vital light sources for many future technologies; however, their realization is challenging because the cavity size must be minimized. Whispering-gallery-mode (WGM) microresonators are attractive for this purpose since they allow the strong light–matter interaction usually needed to enable mode locking. However, the optimum parameter ranges are entirely unknown since no experiments have yet been conducted. Here, we numerically investigate pulsed operation in a toroidal WGM microresonator with gain and saturable absorption (SA) to study the experimental feasibility. We show that dispersion is the key parameter for achieving passive mode locking in this system. Moreover, the design guideline provided in this work can apply to any small resonators with gain and SA and is not limited to a specific cavity system.
UR - http://www.scopus.com/inward/record.url?scp=85116918662&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85116918662&partnerID=8YFLogxK
U2 - 10.1364/JOSAB.433804
DO - 10.1364/JOSAB.433804
M3 - Article
AN - SCOPUS:85116918662
SN - 0740-3224
VL - 38
SP - 3172
EP - 3178
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
IS - 10
ER -