| Title |
Triangular Ring Resonator Without Direct Coupling Between Two Access Waveguides of Multimode Interference Coupler |
| Authors |
김두근(Kim, Doo-Gun) ; 김효진(Kim, Hyo-Jin) ; 김선훈(Kim, Seon-Hoon) ; 기현철(Ki, Hyun-Chul) ; 김회종(Kim, Hwe-Jong) ; 오금윤(Oh, Geum-Yoon) ; 최영완(Choi, Young-Wan) |
| Keywords |
Triangular Ring Resonator ; Multimode Interference Coupler ; Total Internal Reflection Mirror |
| Abstract |
We have investigated the properties of the novel triangular ring resonator with the total internal reflection mirrors and the semiconductor optical amplifier for photonic integrated circuits (PIC). A novel triangular resonators containing active and passive sections are fabricated and characterized with various multimode interference (MMI) lengths. The optimum MMI length and width turn out to be 108 and 9 {\mu}m, respectively. A free spectral range of approximately 228 GHz is observed near 1558 nm along with an on-off ratio of 9 dB. The proposed triangular resonator has a good advantage to remove the direct coupling between the two access waveguides of the MMI coupler. Hence, such resonators can be directly integrated with other devices making compact and highly functional PIC possible. |