Abstract
This study proposes a thermal sensor based on whispering gallery modes (WGMs) in a polymer core optical ring resonator (PCORR). The thermal sensitivity and detection limit (i.e., the temperature resolution) for WGMs of various orders and polarizations are theoretically studied as a function of the ring wall thickness. The results show that the temperature detection limits can be as low as and for laser linewidths of 2 and , respectively. The ultrahigh temperature resolution makes the PCORR a very promising platform for temperature measurement. The analysis also shows that the WGM of a lower order has better thermal sensing performance and a thinner optimal thickness of the ring resonator.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Nai Lin, Lan Jiang, Sumei Wang, Hai Xiao, Yongfeng Lu, and Hai-Lung Tsai
Appl. Opt. 50(20) 3615-3621 (2011)
Nai Lin, Lan Jiang, Sumei Wang, Hai Xiao, Yongfeng Lu, and Hailung Tsai
Appl. Opt. 50(7) 992-998 (2011)
Nai Lin, Lan Jiang, Sumei Wang, Qianghua Chen, Hai Xiao, Yongfeng Lu, and Hailung Tsai
Appl. Opt. 50(28) 5465-5472 (2011)