Extremely small multimode-interference coupled triangular resonator with sharp angle of incidence.
Novel triangular ring resonators combining extremely small multimode-interference (MMI) coupler, low loss total internal reflection (TIR) mirrors, and semiconductor optical amplifiers are reported for the first time. The MMI length of 90 microm is among the shortest reported. The incidence angle of the TIR mirror inside the resonator is 22 degrees. A free-spectral range of approximately 2 nm is observed near 1550 nm along with an on-off ratio of 17 dB. The triangular resonators with a sharp angle are very attractive components due to their promise of compact size and high levels of integration. Therefore, large numbers of resonators can be integrated on a chip to increase functionality in future optical wavelength division multiplexing system.
Kim
Doo Gun
DG
Microwave and Lightwave Telecommunications Lab., School of Electrical and Electronics Engineering, Chung-Ang University, Dongjak-ku, Seoul, 156-756, Korea.
Oh
Geum-Yoon
GY
Choi
Woon-Kyung
WK
Kim
Hyo Jin
HJ
Kim
Seon Hoon
SH
Ki
Hyun Chul
HC
Kim
Sang-Taek
ST
Ko
Hang Ju
HJ
Kim
Tae Un
TU
Yang
Myoung Hak
MH
Kim
Hwe Jong
HJ
Yi
Jong Chang
JC
Chung
Youngchul
Y
Dagli
Nadir
N
Choi
Young-Wan
YW
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007909:Lenses; D008027:Light; D008904:Miniaturization; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D012666:Semiconductors; D018511:Systems Integration; D014732:Vibration