All-solid-state single-frequency tunable red laser

An all-solid-state, laser technology, which is applied in the field of red lasers, can solve problems in the research and development stage, achieve efficient operation, high output power, and improve conversion efficiency

CN104283101AInactive Publication Date: 2015-01-14RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-01-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an all-solid-state single-frequency tunable red laser. The all-solid-state single-frequency tunable red laser comprises a laser diode, a pumping light shaping system, a resonant cavity, a gain medium, a frequency doubling crystal, a magneto-optical isolator and a frequency tuning device, wherein the laser diode is connected with the pumping light shaping system by virtue of optical fibers, light spots shaped by the pumping light shaping system are longitudinally pumped onto the gain medium, and fluorescence, excited with an infrared band, of the gain medium enters the resonant cavity. With the adoption of the all-solid-state single-frequency tunable red laser, the frequency continuous regulation of a 671nm red light is realized by the matching of an F-P etalon and piezoelectric ceramic, wherein the F-P etalon is used for crude regulation, and the piezoelectric ceramic is used for fine regulation; compared with a traditional 808nm pumping source, a 880nm pumping source adopted by the laser has the advantages that thermal lens effect of the crystal can be effectively reduced, and the conversion efficiency of the laser is improved; as the laser is in an annular cavity structure, the running is efficient and stable.
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Description

technical field

[0001] The invention belongs to a red light laser, in particular to an all-solid-state single-frequency tunable red light laser. Background technique

[0002] Laser diode (LD) end-pumped solid-state lasers have received widespread attention in recent years. It has the advantages of high efficiency, compact structure, stable performance, long life and full curing. It is widely used in lidar, spectral analysis, gravitational wave detection, and coherent communication. and quantum optics.

[0003] In general applications, 808nm optical pumping is the most common type of laser diode end pumping, and using 880nm laser as pumping light can directly pump particles to the upper energy level of the laser, reducing the number of particles without radiation transitions , to reduce the energy loss caused by quantum defects, thereby effectively reducing the heat load of the laser medium.

[0004] At present, there are many studies on single-frequency lasers in the prior...

Examples

Embodiment Construction

[0034] The all-solid-state single-frequency tunable red laser of the present invention will be described in detail below in conjunction with the drawings and embodiments of the description:

[0035] Such as figure 1 , 2 As shown, an all-solid-state single-frequency tunable red laser includes a laser diode 1, a pump light shaping system 3, a resonant cavity, a gain medium 8, a frequency doubling crystal 11, a magneto-optical one-way device and a frequency tuning device. The laser diode 1 is connected to the pump light shaping system 3 through the optical fiber 2, and the light spot shaped by the pump light shaping system 3 is pumped longitudinally onto the gain medium 8, and the gain medium 8 is excited to emit fluorescence in the infrared band into the resonant cavity;

[0036] The resonant cavity is an "8" ring cavity structure composed of the pump light input mirror 4, the plane cavity mirror 5, the concave cavity mirror 6 and the concave output cavity mirror 7; the input m...