Abstract
We develop a compact whispering-gallery-mode (WGM) sensing system by integrating multiple components, including a tunable laser, a temperature controller, a function generator, an oscilloscope, a photodiode detector, and a testing computer, into a phone-sized embedded system. We demonstrate a thermal sensing experiment by using this portable system. Such a system successfully eliminates bulky measurement equipment required for characterizing optical resonators and will open up new avenues for practical sensing applications by using ultra-high Q WGM resonators.
| Original language | English |
|---|---|
| Pages (from-to) | 25905-25910 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 24 |
| Issue number | 23 |
| DOIs | |
| State | Published - Nov 14 2016 |