1. ZOGAN Semi 1 , Pyeongtaek, Gyeonggi-do 17757, Republic of Korea
2. Korea Photonics Technology Institute 2 , Gwangju 6100, Republic of Korea
3. Future Chips Constellation, Department of Electrical, Computer, and System Engineering, Rensselaer Polytechnic Institute 3 , Troy, New York 12180, USA
4. Department of Photonics and Nanoelectronics and BK21 FOUR ERICA-ACE, Hanyang University ERICA 4 , Ansan, Gyeonggi-do 15588, Republic of Korea