Optical-fiber coupled output end surface pumped solid-state laser and manufacture technology

Abstract

The invention discloses an optical-fiber coupled output end surface pumped solid-state laser and a manufacture technology. The optical-fiber coupled output end surface pumped solid-state laser comprises a laser medium and an output optical fiber, wherein the laser medium and the output optical fiber are fixed in a shell; one end surface of the laser medium is coated with a 1064nm total-reflection film and a 808nm total-penetration film; the end surface of the output optical fiber in the shell is coated with a 1064nm partial-penetration film and a 808nm total-reflection film; the end surface of the laser medium, which is coated with the 1064nm total-reflection film, and the end surface of the output optical fiber, which is coated with the 1064nm partial-penetration film, form a resonant cavity in the shell; the end surface laser diode in the cavity acts on the laser medium; the laser medium is subjected to extra-cavity pumping by the end surface laser diode; and paired 1064 oscillation output is formed in the cavity. The optical-fiber coupled output end surface pumped solid-state laser disclosed by the invention is favorable for improving the light beam quality and simplifying a DPL (diode pumped solid-state laser) optical fiber output coupling structure. Because the diameter of the optical fiber end surface is small, high-order mode oscillation in the resonant cavity can be inhibited, and the defects of the traditional coupled mode are overcome.

Description

technical field [0001] The invention relates to a laser diode-pumped solid-state laser, in particular to a fiber-coupled output end-pumped solid-state laser and its manufacturing process. Background technique [0002] Laser diode-pumped solid-state lasers (DPL) usually output directly in the form of a window. In the process of using DPL, the beam is directly output, which limits the flexibility of laser use and the relationship between the laser and other equipment using DPL. Coupling connection between. [0003] The traditional DPL fiber coupling output method is to add a coupling device outside the DPL output mirror (or laser housing), couple the beam output through the window into the optical fiber, and then pass through the optical fiber and other optical instruments (or equipment) using DPL. It is difficult to adjust the coupling by this method, and the coupling efficiency is likely to decrease after long-term use, and the coupling needs to be re-adjusted. At the same ...

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Problems solved by technology

[0002] Laser diode-pumped solid-state lasers (DPL) usually output directly in the form of a window. In the process of using DPL, the beam is directly output, which limits the flexibility of laser use and the relationship between the laser and other equipment using DPL. Coupling connection between

[0003] The traditional DPL fiber coupling output method is to add a coupling device outside the DPL output mirror (or laser housing), couple the beam output through the window into the optical fiber, and then pass through the optical fiber and other optical instruments (or equipment) using DPL. It is difficult to adjust the coupling by this method, and the coupling efficiency is likely to decrease after long-term use, and the coupling needs to be re-adjusted. At the same time, the size, weight and appearance of the DPL are increased.

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