Add to BibSonomy
Abstract
A simple planar light-wave circuit-based switchable ${{\rm{LP}}_{11{\rm a}}} {-} {{\rm{LP}}_{11{\rm b}}}$ mode rotator for reconfigurable mode division multiplexing is proposed, which consists of a polymer waveguide and an electrode heater located on the waveguide. Because of the asymmetric refractive index distribution in the horizontal and vertical directions, induced by the thermo-optic effect, mode rotation between the ${{\rm{LP}}_{11{\rm a}}}$ and ${{\rm{LP}}_{11{\rm b}}}$ modes can be achieved when the heater is ON but there can be no mode rotation when the heater is OFF. Numerical simulations show that our well-designed mode rotator with optical polymer materials, which has a length of 2750 µm, can achieve a mode conversion efficiency (MCE) larger than 84% over the entire ${\rm{C}} + {\rm{L}}$ band (1530–1610 nm) and a maximum MCE of 96% at 1550 nm. The switching electric power is 161.5 mW. The calculated temperature within the waveguide core is from 186°C (close to the heater) to 86°C (away from the heater).
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Baizhu Lin, Shijie Sun, Kaidi Yang, Mu Zhu, Yue Gu, Qidong Yu, Xibin Wang, and Daming Zhang
Appl. Opt. 60(23) 6943-6949 (2021)
Kunimasa Saitoh, Takui Uematsu, Nobutomo Hanzawa, Yuhei Ishizaka, Kohei Masumoto, Taiji Sakamoto, Takashi Matsui, Kyozo Tsujikawa, and Fumihiko Yamamoto
Opt. Express 22(16) 19117-19130 (2014)
Yuling Shang, Wenjie Guo, Xiang He, Jinzhuo Zhou, Yaya Yan, Zhengwei Liu, and Chunquan Li
Appl. Opt. 60(23) 6791-6798 (2021)