CN203103748U - Fiber laser outputting laser light with dual wavelengths of 659.5nm and 1319nm - Google Patents
Fiber laser outputting laser light with dual wavelengths of 659.5nm and 1319nm Download PDFInfo
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- CN203103748U CN203103748U CN 201220597343 CN201220597343U CN203103748U CN 203103748 U CN203103748 U CN 203103748U CN 201220597343 CN201220597343 CN 201220597343 CN 201220597343 U CN201220597343 U CN 201220597343U CN 203103748 U CN203103748 U CN 203103748U
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Abstract
The utility model relates to a fiber laser outputting laser light with dual wavelengths of 659.5nm and 1319nm. According to the fiber laser outputting laser light with dual wavelengths of 659.5nm and 1319nm, a diode module set power source provides power for a multi-mode pump diode module set, pump light is emitted by the fiber laser and is coupled by a fiber coupler between inner and outer cladding layers of a double-cladding layer, the pump light is reflected to and fro between the inner and outer cladding layers, passes through a single-mode fiber core for multiple times and is absorbed by the single-mode fiber core, 1319nm photon is oscillated and amplified in a laser resonator formed by left and right fiber output ends to form 1319nm laser light, moreover, opposite direction output of the 1319nm laser light is carried out at the left fiber output end and the right fiber output end, the right path enters a KTP crystal and realizes frequency multiplication output of 659.5nm red laser light through the KTP crystal, the 659.5nm red laser is outputted through right paths of a beam expanding lens and a focusing lens, the 1319nm laser light outputted from the left path directly passes through left paths of the beam expanding lens and the focusing lens, and thereby the laser light with dual wavelengths of 659.5nm and 1319nm is outputted.
Description
Technical field:
The present invention relates to a kind of output 659.5nm and 1319nm dual wavelength fibre laser.Belong to the laser optics field.
Background technology:
659.5nm red laser and 1319nm infrared laser dual wavelength are to be used for the red laser that spectral detection, instrumental analysis etc. are used, it also can be used as the red-light source of one of the three primary colors of full color laser, and it also is used for laser and optoelectronic areas such as optical communication; Fiber laser is as the representative of third generation laser technology, and having mercy on property, glass material with glass optical fiber low cost of manufacture and optical fiber have extremely low volume area ratio, rapid heat dissipation, loss is low with conversion efficiency than advantages such as height, range of application constantly enlarges.
The utility model content:
A kind of output 659.5nm and 1319nm dual wavelength fibre laser, it is powered to multimode pumping diode (led) module group by diode (led) module group power supply, it launches pump light, be coupled to through fiber coupler between the interior surrounding layer of double clad Nd3+:YAG single crystal fiber, pump light comes back reflective between interior surrounding layer, repeatedly passing fiber core with single-mold is absorbed, its Nd3+ ion energy-absorbing generation energy level transition, radiation 1319nm photon, its amplification of in the laserresonator that constitutes by left fiber-optic output and right fiber-optic output, vibrating, form 1319nm laser, export in opposite directions from left fiber-optic output and right fiber-optic output simultaneously, right wing enters ktp crystal, through ktp crystal frequency multiplication output 659.5nm red laser, expand bundle through beam expanding lens, focus lamp focuses on, last right wing output 659.5nm red laser, the 1319nm laser of left side road output, directly through expanding bundle through beam expanding lens, focus lamp focuses on, the 1319nm laser of last left road output, form the output of 659.5nm and 1319nm dual wavelength, except that diode (led) module group power supply, above-mentioned whole devices all install on optical rail and ray machine tool, form output 659.5nm and 1319nm dual wavelength fibre laser, implement air-cooled to it by fan.
The present invention program one, a kind of output 659.5nm and 1319nm dual wavelength fibre laser method and apparatus.Adopt double clad Nd3+:YAG single crystal fiber, the inhomogeneous broadening that its glass matrix division forms causes the absorption band broad, be that glass optical fiber is wide to the crystalline phase matching range of incident pump light, adopt the cladding pumping technology of doubly clad optical fiber, doubly clad optical fiber is made up of four levels: 1. fiber cores; 2. inner cladding; 3. surrounding layer; 4. protective layer, adopt the cladding pumping technology as follows, adopt one group of multimode pumping diode (led) module group to send pump light, through fiber coupler is to be coupled between inner cladding and the surrounding layer, inner cladding adopts ellipsoidal structure, surrounding layer adopts circular configuration, pump light comes back reflective between inner cladding and surrounding layer, repeatedly passing fiber core with single-mold is absorbed, fiber core with single-mold Nd3+: ion energy-absorbing generation energy level transition, radiation 1319nm photon, optical fiber designs is an annular, its intermediate ends is provided with coupler, the pump light that is sent by its coupling multimode pump diode module group is to the interior surrounding layer, prolong its annulus circumference point of contact below the annular, tangent line ray along these both sides, point of contact, line is installed with two fiber-optic outputs, these two output optical fibre end plated films, plate equally 1319nm wavelength light T=3%de reflectivity film, form resonant cavity, fiber core with single-mold radiation 1319nm photon vibrates to amplify in this resonant cavity and forms the output of 1319nm wavelength laser, the 1319nm wavelength laser is along the tangent line ray output on both sides, point of contact, form two-way 1319nm wavelength laser output, right wing enters ktp crystal, through ktp crystal frequency multiplication output 659.5nm red laser, expand bundle through beam expanding lens, focus lamp focuses on, last right wing output 659.5nm red laser; The 1319nm laser of left side road output, directly through focusing on through beam expanding lens expansion bundle, focus lamp, the 1319nm laser of last left road output forms 659.5nm and 1319nm dual wavelength and exports.
The present invention program two, ktp crystal plating 659.5nm red laser anti-reflection film.
Ktp crystal both sides plating 659.5nm red laser anti-reflection film increases the output of frequency multiplication photon, improves shg efficiency effectively;
The present invention program three, 659.5nm outgoing mirror plating 659.5nm laser anti-reflection film.
659.5nm outgoing mirror, plating 659.5nm laser anti-reflection film, plating 1319nm wavelength laser light high reflection film.
The present invention program four, plating 1064nm wavelength light high-transmission rate film suppress the generation of 1064nm.
The mode of 1064nm wavelength light high-transmission rate film is plated in employing equally at two fiber-optic outputs, make 1064nm wavelength photon spill resonant cavity and can not form vibration, thereby suppress the generation of 1064nm, this is the key technology of the formation of 1319nm laser generation, realizes the power output of two-way 1319nm wavelength laser 5W.
Fiber laser have exempt to regulate, the advantage of non-maintaining, high stability.
Core content of the present invention:
1, diode (led) module group power supply is powered to multimode pumping diode (led) module group, it launches pump light, be coupled to through fiber coupler between the interior surrounding layer of double clad Nd3+:YAG single crystal fiber, pump light comes back reflective between inner cladding and surrounding layer, repeatedly passing fiber core with single-mold is absorbed, fiber core with single-mold Nd3+ ion energy-absorbing generation energy level transition, radiation 1319nm photon, its amplification of in the laserresonator that constitutes by left fiber-optic output and right fiber-optic output, vibrating, form 1319nm laser, export in opposite directions from left fiber-optic output and right fiber-optic output simultaneously, right wing enters in the left road ktp crystal of setting, through ktp crystal frequency multiplication output 659.5nm red laser, expand bundle through right beam expanding lens again, through the 659.5nm outgoing mirror, focus on output right wing output 659.5nm red laser again through right focus lamp; Left road output 1319nm red laser is directly exported through beam expanding lens and focus lamp in left side road, except that diode (led) module group power supply, above-mentioned whole device all installs on optical rail and ray machine tool, and is air-cooled to its enforcement by fan, forms output 659.5nm and 1319nm dual wavelength fibre laser.
2.KTP crystal both sides plating 659.5nm red laser anti-reflection film increases the output of frequency multiplication photon, improves shg efficiency effectively; 659.5nm outgoing mirror, plating 659.5nm laser anti-reflection film, plating 1319nm wavelength laser light high reflection film.
3. an end is provided with ktp crystal frequency multiplication output 659.5nm red laser, and the other end is directly exported fundamental frequency light 1319nm wavelength laser.
Description of drawings:
Accompanying drawing is a structure chart of the present utility model, below in conjunction with the description of drawings course of work.
Be respectively in the accompanying drawing: 1, left road output laser, 2, left focus lamp, 3, left beam expanding lens, 4, left fiber-optic output, 5, double clad Nd3+:YAG single crystal fiber, 6, fiber coupler, 7, multimode pumping diode (led) module group, 8, right fiber-optic output, 9, diode (led) module group power supply, 10, right beam expanding lens, 11, right focus lamp, 12, right wing output laser, 13, right-hand member output eyeglass, 14, right-hand member ktp crystal, 15, optical rail and ray machine tool, 16, fan.
Embodiment:
The embodiment and the course of work are as follows:
Multimode pumping diode (led) module group 7 is given in 9 power supplies of diode (led) module group power supply, 7 emission pump lights, be coupled to through fiber coupler 6 between the interior surrounding layer of double clad Nd3+:YAG single crystal fiber 5, pump light comes back reflective between inner cladding and surrounding layer, repeatedly passing fiber core with single-mold is absorbed, fiber core with single-mold Nd3+ ion energy-absorbing generation energy level transition, radiation 1319nm photon, its vibration in the laserresonator that is made of left fiber-optic output 4 and right fiber-optic output 8 is amplified, form 1319nm laser simultaneously from 4 and 8 outputs in opposite directions, left side road enters left beam expanding lens and expands bundle 3, focuses on 2 through left focus lamp again, exports left road 1 output 1319nm red laser, right wing enters right-hand member ktp crystal 14, frequency multiplication output 659.5nm red laser expands bundle through right beam expanding lens 10, through right-hand member output eyeglass 13, focus on through right focus lamp 11 again, output right wing output laser 659.5nm red laser 1,2 to 8 and 10 to 15 and 16 fans all install on optical rail and ray machine tool 15, by 16 pairs 5,6 and 7 enforcements are air-cooled.
Claims (3)
1. export 659.5nm and 1319nm dual wavelength fibre laser for one kind, it is characterized by: diode (led) module group power supply is powered to multimode pumping diode (led) module group, it launches pump light, be coupled to through fiber coupler between the interior surrounding layer of double clad Nd3+:YAG single crystal fiber, pump light comes back reflective between inner cladding and surrounding layer, repeatedly passing fiber core with single-mold is absorbed, fiber core with single-mold Nd3+ ion energy-absorbing generation energy level transition, radiation 1319nm photon, its amplification of in the laserresonator that constitutes by left fiber-optic output and right fiber-optic output, vibrating, form 1319nm laser, export in opposite directions from left fiber-optic output and right fiber-optic output simultaneously, right wing enters in the left road ktp crystal of setting, through ktp crystal frequency multiplication output 659.5nm red laser, expand bundle through right beam expanding lens again, through the 659.5nm outgoing mirror, focus on output right wing output 659.5nm red laser again through right focus lamp; Left road output 1319nm red laser is directly exported through beam expanding lens and focus lamp in left side road, except that diode (led) module group power supply, above-mentioned whole device all installs on optical rail and ray machine tool, and is air-cooled to its enforcement by fan, forms output 659.5nm and 1319nm dual wavelength fibre laser.
2. laser according to claim 1 is characterized by: ktp crystal both sides plating 659.5nm red laser anti-reflection film, increase the output of frequency multiplication photon, and improve shg efficiency effectively; 659.5nm outgoing mirror, plating 659.5nm laser anti-reflection film, plating 1319nm wavelength laser light high reflection film.
3. laser according to claim 1 is characterized by: an end is provided with ktp crystal frequency multiplication output 659.5nm red laser, and the other end is directly exported fundamental frequency light 1319nm wavelength laser.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597343 CN203103748U (en) | 2012-11-14 | 2012-11-14 | Fiber laser outputting laser light with dual wavelengths of 659.5nm and 1319nm |
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| CN 201220597343 CN203103748U (en) | 2012-11-14 | 2012-11-14 | Fiber laser outputting laser light with dual wavelengths of 659.5nm and 1319nm |
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| CN203103748U true CN203103748U (en) | 2013-07-31 |
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Granted publication date: 20130731 Termination date: 20131114 |