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.
|Conference||25th International Conference on Optical Fiber Sensors|
|Country/Territory||Korea, Republic of|
|Period||24/04/2017 → 28/04/2017|
|Series||2017 25th Optical Fiber Sensors Conference (ofs)|
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- Fiber gratings
- Signal to noise ratio
- Wavelength measurement
- FBG interrogation