A translation-rotation collaborative regulation crystal axis cone tunable multi-wavelength hollow laser

By coordinating translation and rotation of the crystal axis cone, the challenges of gain competition and loss control in multi-wavelength lasers are solved, realizing synchronous output and dynamic tuning of multi-wavelength lasers and improving the device's adaptability to multiple scenarios.

CN122456283APending Publication Date: 2026-07-24YUNNAN UNIV
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Patent Information

Application Number
CN202610650648.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-12
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing multi-wavelength lasers face challenges in gain competition, loss control, and coating constraints, making it difficult to achieve dynamic tuning of multiple wavelengths and stable output of hollow optical fields, and lacking adaptability to multiple scenarios.

Method used

By using translation-rotation synergistic control based on a uniaxial crystal, the wavelength-dependent loss of the laser in the cavity is dynamically adjusted. By utilizing the rotation and displacement synergistic control of the first and second crystal axial cones, the synchronous output and dynamic tuning of multi-wavelength lasers can be achieved.

Benefits of technology

It achieves synchronous output and dynamic tuning of multi-wavelength hollow lasers, improves functional versatility and scene adaptability, and significantly enhances the applicability of the device in multiple scenarios.

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Abstract

The present application relates to the field of laser technology, in particular to a kind of tunable multi-wavelength hollow laser based on translation-rotation collaborative regulation crystal axicon, the pump beam emitted by fiber-coupled semiconductor laser array is collimated by first convex lens, focused by second convex lens, and focused to laser gain medium by plano-concave mirror;Plano-concave mirror and plane mirror form laser resonator, and negative glass axicon diverges parallel light beam in laser resonator into conical light beam, and emits parallelly after the refraction of positive glass axicon;Through the collaborative regulation of synchronous rotation first crystal axicon / second crystal axicon and moving second crystal axicon, the loss of each laser wavelength in laser resonator is dynamically adjusted, so that the oscillation threshold of multiple wavelength lasers in laser resonator is equal, and then the simultaneous stable operation of multi-wavelength laser is ensured.The present application not only can efficiently realize the synchronous output of multi-wavelength hollow laser, but also can provide flexible dynamic tuning capability between multiple wavelengths for device.
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