CN1713464A - Production of resonant cavity of fibre-optical laser - Google Patents
Production of resonant cavity of fibre-optical laser Download PDFInfo
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- CN1713464A CN1713464A CN 200410047997 CN200410047997A CN1713464A CN 1713464 A CN1713464 A CN 1713464A CN 200410047997 CN200410047997 CN 200410047997 CN 200410047997 A CN200410047997 A CN 200410047997A CN 1713464 A CN1713464 A CN 1713464A
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- resonant cavity
- fiber
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- optical fiber
- cavity
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Abstract
The method includes following steps: the optical fiber cavity is installed on filming support; multi layer films are coated on one end or two ends of optical fiber resonant cavity to form two-color film and fiber laser resonant cavity.
Description
Technical field
The present invention relates to a kind of manufacture method of fiber laser resonant cavity, utilize the fiber end face plated film to replace traditional dichroic mirror that adds, thereby constitute the method that resonant cavity is realized the output of ytterbium-doping optical fiber laser laser.
Background technology
In recent years along with the fast development of high-power optical fiber coupled semiconductor laser and cladding pumping technology, the pump power of ytterbium-doping optical fiber laser and power output have all obtained significantly improving, external a lot of research unit has all realized hundreds of to the output of myriawatt laser, and many companies have realized the high power fiber laser commercialization.Compare with solid state laser with semiconductor, its advantage is mainly reflected in:
(1) can be used for the corresponding relatively inexpensive short wavelength's semiconductor laser diode of rare earth ion absorption spectrum as pumping source, cost is lower;
(2) owing to the cylindrical geometric size of fiber laser, be coupled to easily in the Transmission Fibers of system;
(3) optical fiber structure has higher area and volume ratio, thereby radiating effect is better.From now on, along with technology is further ripe, ytterbium-doping optical fiber laser will be in laser processing, optical storage of data, and optical communication, sensing technology, exhibit one's skill to the full in multiple fields such as spectrum and medical application, and part will replace existing laser.
The resonant cavity of traditional fiber laser all is that the optical fiber two ends add dichroic mirror, and this mode and solid state laser are similar, can change assembling in experiment, but is unfavorable for the light path adjusting.Be limited to present optical fiber fabrication technology, fiber end face can not fully directly contact with minute surface, has a thin layer of air so between the two, to bring adverse effect to the resonant cavity of design, lower efficiency, in addition, adopt this method to make that product is difficult to accomplish systematicness, consistency when realizing commercialization.The way that solves normally adopts fiber grating, this method cost height, complex process, especially processing object is the big double clad rare earth doped fiber of core diameter, at home under doubly clad optical fiber preparation technology is that all right the ripe condition, this method only is only applicable to laboratory research, can not be applicable to industrialization.
Summary of the invention
The objective of the invention is to, a kind of manufacture method of resonant cavity is provided, help the system integration of overall optical fibre laser and the raising of pumping efficiency.
The manufacture method of a kind of resonant cavity of the present invention is characterized in that, comprises the steps:
Fiber resonance cavity is contained on the film plating frame;
One or both ends at fiber resonance cavity plate assembly of thin films, constitute Double-color film;
Form the fiber laser resonant cavity.
Wherein said multilayer film is SiO
2, ZrO
2The stack of assembly of thin films.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is embodiments of the invention figure.
Embodiment
See also shown in Figure 1ly, the manufacture method of a kind of resonant cavity of the present invention comprises the steps:
Earlier fiber resonance cavity 3 is contained on the film plating frame;
Plate assembly of thin films 1 or 2 in the one or both ends of fiber resonance cavity 3, constitute Double-color film; Form fiber laser resonant cavity 10.
Wherein said assembly of thin films 1 or 2 is SiO
2, ZrO
2The stack of assembly of thin films.
The present invention adopts the method for fiber end face plated film to realize optical resonator.As shown in Figure 1, be 1 or 2 at the front end of yb-doped double-clad fiber 3 or front end and rear end plating Double-color film, high saturating at 976nm (pump light), high anti-at 1060nm-1100nm (laser).These two wavelength are very approaching, therefore are difficult to take into account accomplish that two wave bands are absolute high saturating, high anti-.Through improper effort, we explore and utilize SiO
2, ZrO
2For main material replaces rete plating reason, rete number nearly 40, thereby form Double-color film system, accomplish that the transmitance at 976nm is 93%, in the 1060nm-1100nm transmitance less than 1%.End 2 at optical fiber also can plate Double-color film in addition, and 1060nm-1100nm anti-reflection (transmissivity can choose at random), 976nm is high anti-, has so just constituted a kind of resonant cavity 10 of novel optical fiber laser.
Concrete device for carrying out said as shown in Figure 2.Adopt the F-P cavity configuration, carry out pumping by 976nm semiconductor laser array optical fiber output module 4.Assemble injection yb-doped double-clad fiber front end through coupled system 5, thereby enter resonant cavity 10, finally realize the output of fiber laser laser.This optical resonator 10 has reduced the overelaborated property that light path is regulated, and is convenient to the dish circle of doubly clad optical fiber, thereby for commercialization provides a lot of convenience, is easy to the system integration; On the other hand, this resonant cavity has avoided tradition to add the dual resonant cavity phenomenon of dichroic mirror, because tradition adds dichroic mirror, one thin layer of air is unavoidably arranged between minute surface and fiber end face, when laser is propagated at interacvity gain, to be subjected to the transmission (or reflection) of four faces, this mechanism will cause the reduction of efficient.
Claims (2)
1, a kind of manufacture method of resonant cavity is characterized in that, comprises the steps:
Fiber resonance cavity is contained on the film plating frame;
One or both ends at fiber resonance cavity plate assembly of thin films, constitute Double-color film;
Form the fiber laser resonant cavity.
2, the manufacture method of resonant cavity according to claim 1 is characterized in that, wherein said multilayer film is SiO
2, ZrO
2The stack of assembly of thin films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410047997 CN1713464A (en) | 2004-06-14 | 2004-06-14 | Production of resonant cavity of fibre-optical laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410047997 CN1713464A (en) | 2004-06-14 | 2004-06-14 | Production of resonant cavity of fibre-optical laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1713464A true CN1713464A (en) | 2005-12-28 |
Family
ID=35718959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410047997 Pending CN1713464A (en) | 2004-06-14 | 2004-06-14 | Production of resonant cavity of fibre-optical laser |
Country Status (1)
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| CN (1) | CN1713464A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783477B (en) * | 2010-01-08 | 2013-01-30 | 清华大学 | Filtering endoscope used for optical fiber laser and optical fiber laser |
| CN101752775B (en) * | 2010-01-08 | 2013-04-03 | 清华大学 | Fiber laser adopting end face coated cavity mirror |
| CN112152061A (en) * | 2019-06-26 | 2020-12-29 | 中国科学院理化技术研究所 | Laser amplifier |
| CN115986539A (en) * | 2023-01-04 | 2023-04-18 | 北京东方锐镭科技有限公司 | Fiber laser based on optical fiber coating resonant cavity |
-
2004
- 2004-06-14 CN CN 200410047997 patent/CN1713464A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783477B (en) * | 2010-01-08 | 2013-01-30 | 清华大学 | Filtering endoscope used for optical fiber laser and optical fiber laser |
| CN101752775B (en) * | 2010-01-08 | 2013-04-03 | 清华大学 | Fiber laser adopting end face coated cavity mirror |
| CN112152061A (en) * | 2019-06-26 | 2020-12-29 | 中国科学院理化技术研究所 | Laser amplifier |
| CN115986539A (en) * | 2023-01-04 | 2023-04-18 | 北京东方锐镭科技有限公司 | Fiber laser based on optical fiber coating resonant cavity |
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