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http://dx.doi.org/10.5370/KIEEP.2010.59.1.123

Triangular Ring Resonator Without Direct Coupling Between Two Access Waveguides of Multimode Interference Coupler  

Kim, Doo-Gun (한국광기술원 광소자팀)
Kim, Hyo-Jin (한국광기술원)
Kim, Seon-Hoon (한국광기술원 광소자팀)
Ki, Hyun-Chul (한국광기술원)
Kim, Hwe-Jong (한국광기술원)
Oh, Geum-Yoon (중앙대 공대 전자전기공학부)
Choi, Young-Wan (중앙대 공대 전자전기공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.59, no.1, 2010 , pp. 123-128 More about this Journal
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.
Keywords
Triangular Ring Resonator; Multimode Interference Coupler; Total Internal Reflection Mirror;
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