Tangential polarization vortex hollow laser capable of mutually switching pulse wave and continuous wave

• Main Authors: JIA MENGHAN, XIA JING, CHO CHEOL-HYUN, RUAN JUNYING, LI YUZHAO, LYU YANFEI
• Format: Patent
• Language: Chinese; English
• Published: 05.12.2023
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

The invention discloses a tangential polarization vortex hollow laser capable of mutually switching pulse waves and continuous waves. A plano-convex lens, a negative conical lens, a positive conical lens, a laser gain medium, a sub-wavelength medium grating positive conical lens, a negative-negative hollow conical lens, a plano-positive conical lens and a V-shaped conical lens are sequentially arranged on a light path of the optical fiber coupling output semiconductor laser array; a magnetic field coil is arranged on the negative-negative hollow conscope; the plano-convex lens, the negative conical lens and the positive conical lens generate a focusing ring-shaped light beam for exciting vortex phase laser to operate in the resonant cavity; the sub-wavelength medium grating normal cone mirror is used for realizing tangential polarization laser; the conical surface of the regular conscope and the concave conical surface of the V-shaped conscope form a resonant cavity of the laser; the concave conical surface o