Three-mirror resonant cavity laser for sum-frequency in semiconductor laser pump cavity

• Main Authors: LANLAN GAO, JILIN SU, HUIMING TAN
• Format: Patent
• Language: English
• Published: 20.07.2005
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

The utility model relates to a three-mirror resonant cavity laser for sum-frequency in a semiconductor laser pump cavity, which belongs to a solid laser obtaining sum frequency output in the technical field of the solid laser of the semiconductor laser pumping. The technical problem which is needed to be solved is to provide a three-mirror resonant cavity laser for sum-frequency in the semiconductor laser pump cavity. The utility model comprises a semiconductor laser, an optical coupling system, a reflecting cavity mirror, a laser gain medium, a sum frequency crystal, and two output coupling mirrors; on the light axis in the propagating direction of the laser beam which is transmitted by the semiconductor laser, the focal plane of the optical coupling system is positioned in the laser gain medium; the reflective cavity mirror and the two output coupling mirrors can form two laser resonant cavities which are provided with overlapping parts, and the sum frequency crystal is positioned in the two resonant cavities. When the laser works, the laser gain medium can generate two transitions with different wave lengths, two base frequency lights respectively oscillate in the two resonant cavities, through the sum frequency crystal, the base frequency light which can generate new wave length and frequency light is output out of the cavities.