Xin Meng, Ligong Li, Shunli Han, Xibao Hou, Bing Zhang, Sheng Jiang. High Dynamic Near Infrared Spectrometer Based on Quasi Littrow Structure[J]. Acta Optica Sinica, 2017, 37(10): 1030002
- Acta Optica Sinica
- Vol. 37, Issue 10, 1030002 (2017)
Fig. 1. Diagram of proposed spectrometer based on quasi Littrow structure
Fig. 2. (a) Light intensity distribution and line spread intensity distributions in (b) X direction and (c) Y direction of spots on plane of middle slit
Fig. 3. Light intensity distribution on plane of exit slit. (a) Light spot distribution; (b) wavefront distribution; (c) geometric encircled energy
Fig. 4. Flow chart of photoelectric signal processing of self-developed photoelectric detection system
Fig. 5. Diagram of experimental system
Fig. 6. Recovery spectra with highest resolution of laser with different wavelengths. (a) Wavelength of 1550 nm; (b) wavelength of 1310 nm
Fig. 7. Recovery spectra of laser with wavelength of 1550 nm at different resolutions.(a) Resolution of 0.1 nm; (b) resolution of 0.5 nm; (c) resolution of 1 nm
Fig. 8. Spectrum of low noise laser with wavelength of 1550 nm
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Table 1. Parameters of optical system
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