We propose a novel type of compact multichannel MEMS based spectrometer, where we replace the linear detector with a Digital Micromirror Device (DMD). The DMD is typically cheaper and has better pixel sampling than an InGaAs detector used in the 1550 nm range, which leads to cost reduction and better performance. Moreover, the DMD is a 2D array, which means that multichannel systems can be implemented without any additional optical components in the spectrometer. This makes the proposed interrogator highly cost-effective. The digital nature of the DMD also provides opportunities for advanced programmable spectroscopy.
|Title of host publication||Proceedings of 25th International Conference on Optical Fiber Sensors|
|Number of pages||4|
|Publisher||SPIE - International Society for Optical Engineering|
|Publication status||Published - 2017|
|Event||25th International Conference on Optical Fiber Sensors - Jeju, Korea, Republic of|
Duration: 24 Apr 2017 → 28 Apr 2017
|Conference||25th International Conference on Optical Fiber Sensors|
|Country/Territory||Korea, Republic of|
|Period||24/04/2017 → 28/04/2017|
Bibliographical noteCopyright 2017 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
- Fiber gratings
- Signal to noise ratio
- Wavelength measurement
- FBG interrogation