45 deg. oblique axis pumping method and pumping module for strip shaped laser crystal

A laser crystal and strip technology, applied in the laser field, can solve the problems of high cost, complicated process, and the pump light and the laser output optical axis are not parallel, so as to reduce the interface reflection loss, improve the efficiency, and improve the pump power density. Effect
CN1688070AInactive Publication Date: 2005-10-26TSINGHUA UNIV
1 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2005-10-26
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

This invention relates to a pumping method for a 45deg. clino-axis and a pump module, which combines the advantages of parallel optical axis pump and vertical optical axis pump and puts forward a 45deg.clino-axis pump method and a pump module. Since the pump light is transmitted in zigzag in the crystal, it ensures the uniformity of the pump and full absorption of the crystal to pump lights, it's more suitable for solid laser materials with low absorption coefficient and fine output beams, besides, the total reflection of the 45deg. can reduce the interface reflection loss and cost of a laser crystal, the coupled face of 45deg. cutting increases the coupled face by 1.4times, move pump lights are coupled in.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a 45° oblique-axis pumping method and a pumping module for a slab-shaped laser crystal, belonging to the technical field of lasers. Background technique

[0002] At present, there are two main pump coupling methods for laser diode-pumped solid-state lasers—parallel optical axis pumping and vertical optical axis pumping. The parallel optical axis pumping refers to the pump coupling method in which the pump optical axis is parallel to the laser exit optical axis; the vertical optical axis pump refers to the pump coupling method in which the pump optical axis is perpendicular to the laser exit optical axis. These two pump coupling methods have their own advantages and disadvantages. In the parallel optical axis pumping, the mode matching between the pump light and the laser is better, and the light output efficiency and beam quality are relatively high, but the power expansion is limited by the light power density of the incident...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More