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Updated: Jun 23, 2026
06:48
A Multimodal Wide-Field Fourier-Transform Raman Microscope
Published on: December 30, 2025
[Study on miniature static Fourier transform spectrometer used in laser warning receiver]
Er-Ming Tian1, Ji-Long Zhang, Xiao Li
1National Key Laboratory for Electronic Measurement Technology and Instrument, Taiyuan 030051, China. tem_123@163.com
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|May 22, 2009
Summary
A miniature static Fourier transform spectrometer (MSFTS) was developed for laser warning receivers. This compact, high-speed device accurately detects laser spectra with improved signal-to-noise ratio.
Area of Science:
- Optics and Photonics
- Spectroscopy
- Laser Technology
Context:
- Development of compact and high-speed optical sensing systems.
- Need for advanced components in laser warning receivers.
- Advancements in Fourier transform spectroscopy for real-time analysis.
Purpose:
- To design and develop a Miniature Static Fourier Transform Spectrometer (MSFTS).
- To integrate the MSFTS as a component in a Coherent Discriminating Laser Warning Receiver (CDLWR).
- To achieve high-speed spectral detection of pulsed lasers.
Summary:
- A novel MSFTS was engineered using a modified wedge interfering etalon (MWIE), CCD, and DSP.
- The system demonstrates advantages in size, cost, speed, stability, and signal-to-noise ratio.
- Experimental validation shows excellent wavelength resolution (1.170-8.845 nm) and low error (0.269 nm avg. relative error) across 400-1100 nm.
Impact:
- Enables rapid and accurate identification of laser threats in defense applications.
- Offers a cost-effective and high-performance alternative to existing spectroscopic instruments.
- Contributes to enhanced situational awareness and protection through advanced optical sensing.
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