Figure 1 | Framework of a grating interferometer system for 3-DOF measurement. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 1 | Framework of a grating interferometer system for 3-DOF measurement.

Caption

Figure 1 | Framework of a grating interferometer system for 3-DOF measurement. (a) Reading head. (b) Calculation module. (c) Dual-frequency laser source. PPLN: Periodically Poled Lithium Niobate; HWP: Half-Wave Plate; QWP: Quarter Wave Plate; COL: Fiber Coupler; AOM: AcoustoOptic Modulator; P: Polarizer; PBS: Polarizing Beam Splitter; PD: Photo Detector; AD: Analog-to-digital conversion; CLK: Clock signal; FPGA: Field Programmable Gate Array.

Credit

Can Cui, Lvye Gao et al.

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Credit must be given to the creator.

License

CC BY

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