1. The invention discloses an intracavity frequency doubling laser for eliminating frequency doubling crystal wave-plate effect, which relates to the field of intracavity frequency doubling lasers.

2. Objective To study the presentation of frequency doubling perimetry (FDP) in patients with primary open angle glaucoma(POAG).

3. We also analyze and compare several kinds of frequency doubling crystals used in generating blue laser. Then the intracavity frequency doubling characteristic of LBO is analyzed chiefly.

4. Based on this, a new intracavity frequency doubling scheme of mixing-mode beam, i. e. quasi-CW pumping, is proposed.

5. Methods and mechanism of obtaining single-frequency in all-solid-state intracavity frequency doubling lasers by single-longitudinal-mode ways are described in this paper.

6. During the design of a practical interferometric fiber-optic sensor, one of the key problems is to compensate phase random shifting and eliminate frequency doubling caused by strong signal.

7. The results show that crystal ABP has a large effect of frequency doubling.

8. The thesis adopts triangle wave compare control and monopole frequency doubling PWM mode.

9. Therefore, it is helpful to improve the conversion efficiency by using waveguide frequency doubling.

10. After when the measured pulse width, it is easy to implement frequency doubling and frequency, electronic gear.

10. try its best to collect and build good sentences.

11. The design of thermostat for a crystal device of frequency doubling and the basic circuits of temperature controll are described brie- fly, and the experimental results are given, too, in this paper.

12. This paper describes the influence of the optical inhomogeneity of a nonlinear crystal on the frequency doubling for transversely homogeneous beams.

13. The overall structure of the system, the A/D conversion circuit, the digital phase-locked loop and frequency doubling circuits as well as the software flowchart are given.

14. KTP crystal that is easy to produce gray tracks was replaced with LBO for intracavity frequency doubling.

15. The structure of the invention can be used for producing basic-frequency light and frequency doubling light, in particular high-efficiency frequency doubling light.

16. According to physical signification, three metrical methods are introduced: optical communication stimulant method, extremal measure method and frequency doubling modulation method.

17. As for the certain frequency-differenc of dual-frequency laser, using frequency doubling technique, the frequency-differenc of dual-frequency laser can be doubled.

18. The scheme adopted in the source is Direct Digital Frequency Synthesis by frequency doubling and mixing.

19. Current research on all-solid-state continuous-wave(CW) blue lasers mainly focuses on intracavity frequency doubling technique, but intracavity frequency tripling technique is seldom adopted.

20. Simulation results indicate that the method can detect FHR from the Doppler ultrasonic signals and solve the problems of frequency doubling and halving.

21. The PLL correction circuit enables input signal to multiply with changed frequency doubling factor during correction intervals.