Laser

A technology of lasers and optical fiber combiners, applied in the field of lasers, can solve the problems of unstable pulsed light output, susceptibility to external environment interference, susceptibility to temperature changes, etc., to achieve stable and efficient optical transmission process, not easy to external environment interference, The effect of increasing optical power
CN103746282AActive Publication Date: 2014-04-23ZHUHAI GUANGKU TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHUHAI GUANGKU TECH CO LTD
Publication Date
2014-04-23

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Abstract

The invention provides a laser, which comprises at least one pump light emitting device, an optical fiber beam combiner, a grain optical fiber, a first aligner, a mold locking device, a second aligner and an output lens, wherein a first polarization beam-splitting device is arranged between the first aligner and the mold locking device on the laser; a second polarization beam-splitting device is arranged between the second aligner and the output lens on the laser; adjacent optical devices are connected by adopting polarization-preserving optical fibers. The laser having a polarization-preserving optical fiber structure is high in stability. Linearly polarized light is transmitted through the polarization-preserving optical fibers, so that the influence of vibration on a light path caused by temperature change is avoided. Moreover, the mold locking device can be used for stably absorbing a part of energy and reflecting laser pulse generated after stable mold locking through the polarization beam-splitting devices.
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Description

technical field

[0001] The invention relates to a laser, in particular to a fiber laser for outputting mode-locked laser pulses. Background technique

[0002] Fiber laser refers to a laser that uses rare earth element-doped glass fiber as the gain medium. Under the action of pump light, it is easy to form a high power density in the fiber, and then cause the laser energy level transition of the laser working material, and then pass through the resonator. Laser oscillation output.

[0003] Fiber laser has a wide range of applications. It has the advantages of small size, light weight, high conversion efficiency, and good output beam quality. It has developed rapidly in recent years, especially in laser optical fiber communication, laser space remote communication, industrial shipbuilding, automobile manufacturing, Laser engraving, laser marking, laser cutting, printing rollers, metal and non-metal drilling, cutting, welding, military defense security, medical equipment, larg...

Claims

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