CN104749714A - TOSA optical structure - Google Patents
TOSA optical structure Download PDFInfo
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- CN104749714A CN104749714A CN201310725396.1A CN201310725396A CN104749714A CN 104749714 A CN104749714 A CN 104749714A CN 201310725396 A CN201310725396 A CN 201310725396A CN 104749714 A CN104749714 A CN 104749714A
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- array
- laser array
- grating
- laser
- scanning lens
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Abstract
The invention discloses a TOSA optical structure comprising a laser array, a coupling lens, an optical grating, a scanning lens, and a reflector array, which are sequentially connected along an optical path. An optical fiber head is embedded into the center position of the laser array, and the optical fiber head is a coupled output port. The groove direction of the optical grating is parallel to the arrangement direction of the laser array, and the dispersion direction is perpendicular to the arrangement direction of the laser array. The reflector array is composed of reflectors which correspond to lasers in the laser array in a one-to-one way. The arrangement direction of the reflectors in the reflector array is parallel to the groove direction of the optical grating, and has a dip angle which makes the light reflected by the reflectors aligned with the coupled output end. The optical grating is arranged on the front focus of the scanning lens, and the reflectors in the reflector array are arranged on the rear focus of the scanning lens. The contradiction between the large size of the lasers and the insufficient dispersion angle is solved, and the overall size of the device is greatly reduced.
Description
Technical field
The present invention relates to optical communication field, particularly a kind of TOSA optical texture.
Background technology
In optical communication field, the major function of light delivery module converts electrical signals to light signal, and light signal is converted to a kind of module of electric signal again.Be wherein light emission secondary module (TOSA) for converting electrical signals to the module of light signal, this light emission secondary module can convert electrical signals to light signal, and optical signal transmission is gone out.In prior art, TOSA optical texture ubiquity the comparatively large and dispersion angle of size not enough between contradiction.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of by substituting larger laser instrument position in the optical path with less optical fiber head array, solve because of laser dimensions is comparatively large and dispersion angle not enough between contradiction, the TOSA optical texture of the overall dimensions of reduction of device greatly.
For achieving the above object, technical scheme proposed by the invention is: a kind of TOSA optical texture, it is characterized in that: comprise the laser array connected successively along light path, coupled lens, grating, scanning lens and reflection mirror array, described laser array center is embedded with an optical fiber head, described optical fiber head is coupled output ports, the groove direction of described grating is parallel with the orientation of laser array, dispersion direction is vertical with the orientation of laser array, described reflection mirror array by with the laser instrument in laser array one to one catoptron form, reverberator orientation in described reflection mirror array is parallel with the groove direction of grating, and there is the inclination angle that the light that catoptron is reflected aims at coupled output, described grating is located in the front focus of scanning lens, catoptron in described reflection mirror array is located in the back focus of scanning lens.
Preferably, the laser instrument in described laser array is along one-dimensional square to arrangement.
Adopt technique scheme, TOSA optical texture of the present invention, the beneficial effect had is: by by design vertical with laser instrument orientation for light beam dispersion direction, solve because of laser dimensions is comparatively large and dispersion angle not enough between contradiction, the overall dimensions of reduction of device greatly.
Accompanying drawing explanation
Fig. 1 is TOSA optical texture schematic diagram of the present invention;
Fig. 2 is reflection mirror array left view of the present invention;
Wherein: 1. laser array, 2. coupled lens, 3. grating, 4. scanning lens, 5. reflection mirror array.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As Fig. 1, shown in Fig. 2, a kind of TOSA optical texture, comprise the laser array 1 connected successively along light path, coupled lens 2, grating 3, scanning lens 4 and reflection mirror array 5, laser instrument in laser array 1 is along one-dimensional square to arrangement, laser array 1 center is embedded with an optical fiber head 11, described optical fiber head 11 is coupled output ports, the groove direction of grating 3 is parallel with the orientation of laser array 1, dispersion direction is vertical with the orientation of laser array 1, reflection mirror array 5 by with the laser instrument in laser array 1 one to one catoptron form, reverberator orientation in described reflection mirror array 5 is parallel with the groove direction of grating, and there is the inclination angle that the light that catoptron is reflected aims at coupled output, grating 3 is located in the front focus of scanning lens 4, catoptron in reflection mirror array 5 is located at (as shown in Figure 2) in the back focus of scanning lens 4.
During concrete use, after the emergent light of laser array is collimated by coupled lens, be radiated at grating surface, the dispersion interaction of grating makes the light beam in the vertical direction of different wave length laser instrument be separated, block scan lens are placed after grating, and its front focus is overlapped with the incidence point of laser array at grating place, therefore, moved on parallel to each other after by scanning lens by the light beam of the different wave length of Grating angular spectral dispersion, reflection mirror array is radiated at identical incident angle, reflection mirror array is placed on the back focal plane position of scanning lens, therefore, through reflecting the light beam that returns again by direction during incidence must be parallel to after scanning lens, its drop point is made to aim at the optical fiber head of coupled output ports again by the inclination angle adjusting catoptron, thus multiple beam is coupled, realize the function of TOSA.
Although specifically show in conjunction with preferred embodiment and describe the present invention; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; in the form and details the present invention is made a variety of changes, be protection scope of the present invention.
Claims (2)
1. a TOSA optical texture, it is characterized in that: comprise the laser array connected successively along light path, coupled lens, grating, scanning lens and reflection mirror array, described laser array center is embedded with an optical fiber head, described optical fiber head is coupled output ports, the groove direction of described grating is parallel with the orientation of laser array, dispersion direction is vertical with the orientation of laser array, described reflection mirror array by with the laser instrument in laser array one to one catoptron form, reverberator orientation in described reflection mirror array is parallel with the groove direction of grating, and there is the inclination angle that the light that catoptron is reflected aims at coupled output, described grating is located in the front focus of scanning lens, catoptron in described reflection mirror array is located in the back focus of scanning lens.
2. a kind of TOSA optical texture according to claim 1, is characterized in that: the laser instrument in described laser array is along one-dimensional square to arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725396.1A CN104749714A (en) | 2013-12-25 | 2013-12-25 | TOSA optical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725396.1A CN104749714A (en) | 2013-12-25 | 2013-12-25 | TOSA optical structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104749714A true CN104749714A (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310725396.1A Pending CN104749714A (en) | 2013-12-25 | 2013-12-25 | TOSA optical structure |
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| CN (1) | CN104749714A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557660A (en) * | 2017-09-27 | 2019-04-02 | 大陆汽车有限公司 | For generating the projection device of irradiation patterns pixel-based |
| CN109687291A (en) * | 2019-03-05 | 2019-04-26 | 中国科学院福建物质结构研究所 | Array laser coupling device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6529542B1 (en) * | 2000-04-04 | 2003-03-04 | Aculight Corporation | Incoherent beam combined optical system utilizing a lens array |
| CN1960093A (en) * | 2006-11-22 | 2007-05-09 | 中国科学院上海光学精密机械研究所 | Multi-feedback outer cavity laser diode array |
| US20090060416A1 (en) * | 2007-03-29 | 2009-03-05 | Fujitsu Litmited | Wavelength selective switch |
-
2013
- 2013-12-25 CN CN201310725396.1A patent/CN104749714A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6529542B1 (en) * | 2000-04-04 | 2003-03-04 | Aculight Corporation | Incoherent beam combined optical system utilizing a lens array |
| CN1960093A (en) * | 2006-11-22 | 2007-05-09 | 中国科学院上海光学精密机械研究所 | Multi-feedback outer cavity laser diode array |
| US20090060416A1 (en) * | 2007-03-29 | 2009-03-05 | Fujitsu Litmited | Wavelength selective switch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557660A (en) * | 2017-09-27 | 2019-04-02 | 大陆汽车有限公司 | For generating the projection device of irradiation patterns pixel-based |
| CN109687291A (en) * | 2019-03-05 | 2019-04-26 | 中国科学院福建物质结构研究所 | Array laser coupling device |
| CN109687291B (en) * | 2019-03-05 | 2024-04-12 | 中国科学院福建物质结构研究所 | Array laser coupling device |
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Application publication date: 20150701 |
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