Xiang Zhang, Tao Chen, Caofan Jin, Yue Guo, Yanjing Wang. Design and Development of Portable Light Source and Power Meter System[J]. Laser & Optoelectronics Progress, 2019, 56(21): 212301
- Laser & Optoelectronics Progress
- Vol. 56, Issue 21, 212301 (2019)
Fig. 1. System block diagram
Fig. 2. Processor and peripheral interface circuit
Fig. 3. Digital supermode distributed Bragg reflector laser
Fig. 4. Current driven circuit
Fig. 5. Automatic temperature control circuit
Fig. 6. Multi-range control and sampling circuit
Fig. 7. LCD touch screen control circuit based on FSMC interface
Fig. 8. Running flowchart of underlying driver software
Fig. 9. Principle block diagram of power calibration
Fig. 10. Display interface on host computer
Fig. 11. Output optical power of test source
Fig. 12. Spectra of outputs at different wavelengths. (a) 1530 nm; (b) 1540 nm; (c) 1550 nm
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Table 1. Test data of accuracy at 1550 nm
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