CN202712678U - Laser and ASE light source with tunable laser ray width - Google Patents
Laser and ASE light source with tunable laser ray width Download PDFInfo
- Publication number
- CN202712678U CN202712678U CN201220412469.2U CN201220412469U CN202712678U CN 202712678 U CN202712678 U CN 202712678U CN 201220412469 U CN201220412469 U CN 201220412469U CN 202712678 U CN202712678 U CN 202712678U
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- laser
- etalon
- live width
- control system
- tuned filter
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Abstract
The utility model discloses a laser and an ASE light source with tunable laser ray width, which relates to the field of laser technology, and comprises a ray width tuning filter and the laser/ASE light source. The ray width tuning filter comprises a first etalon, a second etalon and a control system, wherein either of the first and second etalons is a tunable etalon with a flat top, square transmitted waves and double or multiple cavities. According to the utility model, the ray width tuning filter composed of two etalons with tunable transmitted wave length and multiple cavities is arranged inside or outside a laser cavity, and the widths of oscillation rays or output rays inside the laser cavity are controlled by controlling movement in cut-off edges of the transmitted waves of the two etalons; and the laser and the ASE light source with tunable laser ray width are simple in structure, easy for realization, wide in ray width tuning range, and high in tuning precision.
Description
Technical field
The utility model relates to laser technology field, relates in particular to the adjustable laser of a kind of laser linewidth and ASE light source.
Background technology
At laser field, different applications has different requirements to parameters such as the power of laser, wavelength, live widths.To the control of power we can be by pump light source the adjustment of size or the whole bag of tricks such as light splitting realize.To the control of wavelength then normally by laser cavity being adjusted or being realized by the adjustment of other being selected the membrane element device.Select the membrane element device for what be used for wavelength control, comprise grating, the devices such as etalon, certainly the structure that also comprises two etalons in the etalon, the emphasis of its control is that the transmission peaks that will realize each etalon overlaps concerning two etalon structures, and the simultaneously tuning realization by two etalons is tuning to whole laser transmission peaks.Different field requires different to Linewidth of laser, the laser display field expects to have wider laser linewidth, and narrower live width is wished to obtain in the biological detection field.Tuning about to laser linewidth can realize that above method is carried out the tuning complicated operation that exists to laser linewidth usually to relevant chamber shape parameter, the isoparametric control of laser loss, the less grade of tuning range series of problems.Equally in the ASE light source field, the laser line of ASE light source emission is wide very wide, if can be to the laser line broad tuning, to greatly promote the application of ASE light source, therefore designing a kind of easy tuner can carry out the tuning very strong practical value that has to Linewidth of laser in wider scope.
Summary of the invention
For the problems referred to above, the utility model proposes a kind of adjustable laser and ASE light source of laser linewidth simple in structure, wide or transfer narrow by increasing accent that simple live width tuned filter realizes laser linewidth.
For achieving the above object, the technical scheme that the utility model proposes is: the laser that a kind of laser linewidth is adjustable comprises laser and live width tuned filter; Described live width tuned filter comprises the first etalon, the second etalon and control system; Described the first etalon and the second etalon are two-chamber or the multi-cavity tunable etalon with the square transmission waveform of flat-top.
Another scheme of the present utility model is: the ASE light source that a kind of laser linewidth is adjustable comprises ASE light source and live width tuned filter, output after the ASE source emissioning light warp broad tuning filter tuner; Described live width tuned filter comprises the first etalon, the second etalon and control system; Described the first etalon and the second etalon are two-chamber or the multi-cavity tunable etalon with the square transmission waveform of flat-top.
Further, above-mentioned control system is temperature control system or angle control system.
Further, described laser is solid state laser, and described live width tuned filter is located in the solid state laser chamber or outside the chamber.
Further, described solid state laser comprises pumping source, pumping coupling system, laser front cavity mirror, gain medium and laser Effect of Back-Cavity Mirror, and described live width tuned filter is located between gain medium and the laser Effect of Back-Cavity Mirror; Perhaps described live width tuned filter is located at laser Effect of Back-Cavity Mirror outside.
Further, described laser is semiconductor laser, also comprises colimated light system and feedback output cavity mirror; Described live width tuned filter is located at outside the semiconductor laser, and between collimator system and feedback output cavity mirror, the utilizing emitted light of semiconductor laser enters tunable optic filter by colimated light system, finally by being exported by feedback output cavity mirror.
The beneficial effects of the utility model are: adopt two groups of adjustable multi-cavity etalons of transmission peak wavelength to consist of the live width tuned filter, be located in the laser chamber or the chamber outside, oscillation linewidth or output linewidth in the laser cavity are controlled in movement by control two standard sets tool transmission waveform cut-off edge, simple in structure, be easy to realize, and the live width tuning range is wide, and tuning precision is high.
Description of drawings
Fig. 1-3 is the operation principle schematic diagram of the utility model live width tuned filter;
Fig. 4 is the adjustable laser embodiment one of the utility model laser linewidth;
Fig. 5 is the adjustable laser embodiment two of the utility model laser linewidth;
Fig. 6 is the adjustable ASE light source embodiment of the utility model laser linewidth.
Reference numeral: 1, solid state laser; 11, pumping source; 12, pumping coupling system; 13, laser front cavity mirror; 14, gain medium; 15, laser Effect of Back-Cavity Mirror; 2, live width tuned filter; 21, the first etalon; 22, the second etalon; 23, control system; 3, semiconductor laser; 4, colimated light system; 5, feedback output cavity mirror; 6, ASE light source.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Be live width Tuning Principle schematic diagram of the present utility model as Figure 1-3, the utility model adopts two groups of adjustable multi-cavity etalons of transmission peak wavelength to consist of the live width tuned filter, be located in the laser chamber or the chamber outside, oscillation linewidth or output linewidth in the laser cavity are controlled in movement by control two standard sets tool transmission waveform cut-off edge, simple in structure, be easy to realize, and the live width tuning range is wide, tuning precision is high.As shown in Figure 1, be the transmission peaks curve of the first etalon and the second etalon, be the square transmission waveform of flat-top, have precipitous cut-off edge, two etalon transmission peaks have mutual overlapping region, and this overlapping region is live width tuned filter transmission peak wavelength.The transmission peak wavelength scope of two etalons all can move to shortwave direction or long wave direction by changing the modes such as temperature or incident angle, as shown in Figure 2, wherein the transmission peaks curve of an etalon moves to the shortwave direction, it is large that the overlapping region of two etalon transmission peaks becomes, the transmission peak wavelength live width that namely realizes the live width tuned filter broadens, as shown in Figure 3, be the transmission peaks overlapping region variation before and after two etalons are regulated, i.e. the variation of live width tuned filter transmission peak wavelength live width.
The laser that laser linewidth of the present utility model is adjustable comprises laser and live width tuned filter 2; This live width tuned filter comprises the first etalon 21, the second etalon 22 and control system 23; The first etalon 21 and the second etalon 22 are for having two-chamber or the multi-cavity tunable etalon of the square transmission waveform of flat-top, its regulative mode can be regulated by control variations in temperature or incident angle variation etc., so its control system 23 can be temperature control system or angle control system etc.Regulate temperature or the incident angle of the first etalon 21 or the second etalon 22 by control system 23, thereby regulate the transmission peaks position of two etalons, and then realize the variation of two etalon transmission peaks overlapping regions, be the variation of live width tuned filter transmission peak wavelength live width, and then reach the purpose of tuned laser Output of laser live width.
Concrete, as shown in Figure 4, embodiment one for the laser linewidth tunable laser, wherein, laser is solid state laser 1, comprises pumping source 11, pumping coupling system 12, laser front cavity mirror 13, gain medium 14 and laser Effect of Back-Cavity Mirror 15, and live width tuned filter 2 is located between gain medium 14 and the laser Effect of Back-Cavity Mirror 15, realize that the oscillation wavelength live width is regulated in the laser cavity, to realize the tuning of Output of laser live width.Wherein, laser front cavity mirror 13 plating is anti-reflection to pump light, to the high anti-deielectric-coating of oscillating laser, and 15 platings of laser Effect of Back-Cavity Mirror are to optical maser wavelength part reflectance coating.Variations in temperature or the mode such as incident angle variation of control system 23 by controlling the first etalon 21 and the second etalon 22 realizes the adjustment of the first etalon 21 with the second etalon 22 relative transmission peak wavelengths, to realize the adjustment to the two transmission peaks overlapping region, namely realize selection and the live width of oscillation wavelength in the laser cavity tuning.Wherein, live width tuned filter 2 also can be arranged at after the laser Effect of Back-Cavity Mirror 15, realizes the adjusting of the outer laser linewidth of laser cavity.
As shown in Figure 5, be the embodiment two of laser linewidth tunable laser, wherein laser is semiconductor laser 3, also comprises colimated light system 4 and feedback output cavity mirror 5.Live width tuned filter 2 is located at outside the semiconductor laser 3, between collimator system 4 and feedback output cavity mirror 5, the utilizing emitted light of semiconductor laser 3 enters tunable optic filter 2 by colimated light system 4, after tunable optic filter 2 is adjusted live width, via 5 outputs of feedback output cavity mirror, this feedback output cavity mirror 5 provides exocoel feedback and power coupling output.
As shown in Figure 6, be another technical scheme of the present utility model: the ASE light source embodiment that laser linewidth is adjustable comprises ASE light source 6 and live width tuned filter 2, the 2 tuning afterwards outputs of ASE light source 6 utilizing emitted light warp broad tuning filters; Same, this live width tuned filter 2 comprises the first etalon 21, the second etalon 22 and control system 23.Wherein, the first etalon 21 and the second etalon 22 are for having two-chamber or the multi-cavity tunable etalon of the square transmission waveform of flat-top, its regulative mode also is to regulate by control variations in temperature or incident angle variation etc., so its control system 23 can be temperature control system or angle control system etc.Regulate temperature or the incident angle of the first etalon 21 or the second etalon 22 by control system 23, thereby regulate the transmission peaks position of two etalons, and then realize the variation of two etalon transmission peaks overlapping regions, be the variation of live width tuned filter 2 transmission peak wavelength live widths, and then reach the purpose of tuning ASE light source Output of laser live width.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; the various variations of in the form and details the utility model being made are protection range of the present utility model.
Claims (7)
1. the laser that laser linewidth is adjustable is characterized in that: comprise laser and live width tuned filter; Described live width tuned filter comprises the first etalon, the second etalon and control system; Described the first etalon and the second etalon are two-chamber or the multi-cavity tunable etalon with the square transmission waveform of flat-top.
2. the adjustable laser of a kind of laser linewidth as claimed in claim 1, it is characterized in that: described laser is solid state laser, described live width tuned filter is located in the solid state laser chamber or outside the chamber.
3. the adjustable laser of a kind of laser linewidth as claimed in claim 2, it is characterized in that: described solid state laser comprises pumping source, pumping coupling system, laser front cavity mirror, gain medium and laser Effect of Back-Cavity Mirror, and described live width tuned filter is located between gain medium and the laser Effect of Back-Cavity Mirror; Perhaps described live width tuned filter is located at laser Effect of Back-Cavity Mirror outside.
4. the adjustable laser of a kind of laser linewidth as claimed in claim 1, it is characterized in that: described laser is semiconductor laser, also comprises colimated light system and feedback output cavity mirror; Described live width tuned filter is located at outside the semiconductor laser, and between collimator system and feedback output cavity mirror, the utilizing emitted light of semiconductor laser enters tunable optic filter by colimated light system, finally by being exported by feedback output cavity mirror.
5. such as claim 1-4 adjustable laser of a kind of laser linewidth as described in each, it is characterized in that: described control system is temperature control system or angle control system.
6. the ASE light source that laser linewidth is adjustable is characterized in that: comprise ASE light source and live width tuned filter, output after the ASE source emissioning light warp broad tuning filter tuner; Described live width tuned filter comprises the first etalon, the second etalon and control system; Described the first etalon and the second etalon are two-chamber or the multi-cavity tunable etalon with the square transmission waveform of flat-top.
7. the adjustable ASE light source of a kind of laser linewidth as claimed in claim 6, it is characterized in that: described control system is temperature control system or angle control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220412469.2U CN202712678U (en) | 2012-08-20 | 2012-08-20 | Laser and ASE light source with tunable laser ray width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220412469.2U CN202712678U (en) | 2012-08-20 | 2012-08-20 | Laser and ASE light source with tunable laser ray width |
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| CN202712678U true CN202712678U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220412469.2U Expired - Lifetime CN202712678U (en) | 2012-08-20 | 2012-08-20 | Laser and ASE light source with tunable laser ray width |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645119A (en) * | 2017-10-18 | 2018-01-30 | 哈尔滨工业大学 | A kind of method of computer control laser output wavelength |
| CN110737113A (en) * | 2018-07-18 | 2020-01-31 | 福州高意通讯有限公司 | small-sized adjustable wavelength optical filter |
-
2012
- 2012-08-20 CN CN201220412469.2U patent/CN202712678U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645119A (en) * | 2017-10-18 | 2018-01-30 | 哈尔滨工业大学 | A kind of method of computer control laser output wavelength |
| CN110737113A (en) * | 2018-07-18 | 2020-01-31 | 福州高意通讯有限公司 | small-sized adjustable wavelength optical filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171012 Address after: Guangdong province Guangzhou city four street bluejade Guangzhou economic and Technological Development Zone No. nine, No. 5 Building 1 floor Patentee after: OPTIMAL COATECH (GUANGZHOU) Co.,Ltd. Address before: No. 39 Fuxing Road, Jinan District, Fuzhou city of Fujian Province in 350001 Patentee before: FUZHOU PHOTOP QPTICS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |