CN104155780A - Electro-optic modulator - Google Patents
Electro-optic modulator Download PDFInfo
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- CN104155780A CN104155780A CN201310175860.4A CN201310175860A CN104155780A CN 104155780 A CN104155780 A CN 104155780A CN 201310175860 A CN201310175860 A CN 201310175860A CN 104155780 A CN104155780 A CN 104155780A
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- optic modulators
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Abstract
The invention provides an electro-optic modulator. The electro-optic modulator comprises a substrate, an optical waveguide, a first electrode and a second electrode. The optical waveguide comprises an incidence section, an emergence section, a first branch and a second branch, wherein the incidence section, the emergence section and the first branch extend along the same straight line. Compared with the prior art, the electro-optic modulator has fewer connecting turning points of parallel waveguides and bifurcated waveguides, and therefore scattering loss of light can be reduced, and the modulation efficiency can be improved.
Description
Technical field
The present invention relates to electro-optic modulators, relate in particular to a kind of Mach and appoint moral (Mach Zehnder) electro-optic modulators.
Background technology
It is a kind of common electro-optic modulators that Mach is appointed moral (Mach Zehnder) electro-optic modulators.Mach appoints moral electro-optic modulators to be consisted of two parallel waveguides and symmetrical y fork type waveguide.The shortcoming that conventional Mach appoints moral electro-optic modulators to exist is: the turning point being connected of parallel waveguide and the waveguide of fork type is more, and at turning point place, can cause scattering of light loss, and more turning point can make scattering of light loss larger.
Summary of the invention
In view of this, be necessary to provide a kind of Mach to appoint moral electro-optic modulators, it can reduce scattering of light loss.
An electro-optic modulators, comprises substrate, optical waveguide, the first electrode and the second electrode, and this optical waveguide comprises incident section, outgoing section, the first branch and the second branch, and this incident section, outgoing section, the first branch extend along same straight line.
Compared with prior art, electro-optic modulators of the present invention has parallel waveguide still less and the turning point being connected of fork type waveguide, therefore can reduce scattering of light loss, thereby improves modulation efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of electro-optic modulators of the present invention.
Main element symbol description
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Refer to Fig. 1, the invention provides a kind of Mach and appoint moral (Mach Zehnder) electro-optic modulators 10, it comprises a substrate 20, an optical waveguide 30, one first electrode 41 and one second electrode 42.This substrate 20 comprises an end face 21.From this end face 21, the internal divergence to this substrate 20 forms this optical waveguide 30, and it comprises incident section 31, outgoing section 32, the first branch 33 and the second branch 34.
This first electrode 41 and the second electrode 42 are arranged on the end face 21 of substrate 20, and the first electrode 41 and the second electrode 42 lay respectively at the both sides of the second branch 34.
In the present embodiment, because lithium niobate (LiNbO3) crystal (LN) has higher reaction velocity, therefore, the material of this substrate 20 adopts lithium columbate crystal.
In the present embodiment, incident section 31, outgoing section 32, the first branch 33 and the second branch 34 form by diffuse metal titanium (simple substance) in this substrate, and incident section 31, outgoing section 32, the first branch 33 have identical width.
In the present embodiment, this incident section 31, outgoing section 32, the first branch 33 extend along same straight line.This second branch 34 comprises two rakes 341 that are connected with the first branch 33 and a parallel portion 342 paralleling with the first branch 33, the two ends of this parallel portion 342 are connected with the end of two rakes 341, the first branch 33 is connected with the second branch 34 and forms one trapezoidal.
In the present embodiment, this first electrode 41 and the second electrode 42 are parallel to this parallel portion 342, and this first electrode 41 and the second electrode 42 lay respectively at the both sides of parallel portion 342.
Claims (7)
1. an electro-optic modulators, comprises substrate, optical waveguide, the first electrode and the second electrode, it is characterized in that, this optical waveguide comprises incident section, outgoing section, the first branch and the second branch, and this incident section, outgoing section, the first branch extend along same straight line.
2. electro-optic modulators as claimed in claim 1, is characterized in that, the material of this substrate adopts lithium columbate crystal.
3. electro-optic modulators as claimed in claim 1, is characterized in that, this incident section, outgoing section, the first branch and the second branch form by diffuse metal titanium in this substrate.
4. electro-optic modulators as claimed in claim 1, is characterized in that, this incident section, outgoing section, the first branch have identical width.
5. electro-optic modulators as claimed in claim 1, is characterized in that, this first electrode and the second electrode are positioned on the end face of this substrate.
6. electro-optic modulators as claimed in claim 1, is characterized in that, this second branch comprises two rakes that are connected with the first branch and a parallel portion paralleling with the first branch, and the two ends of this parallel portion are connected with the end of two rakes.
7. electro-optic modulators as claimed in claim 6, is characterized in that, this first electrode and the second electrode are parallel to this parallel portion, and this first electrode and the second electrode lay respectively at the both sides of parallel portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310175860.4A CN104155780A (en) | 2013-05-14 | 2013-05-14 | Electro-optic modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310175860.4A CN104155780A (en) | 2013-05-14 | 2013-05-14 | Electro-optic modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104155780A true CN104155780A (en) | 2014-11-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310175860.4A Pending CN104155780A (en) | 2013-05-14 | 2013-05-14 | Electro-optic modulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104155780A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05297333A (en) * | 1992-04-20 | 1993-11-12 | Sumitomo Cement Co Ltd | Optical modulator |
| JPH06313868A (en) * | 1993-04-28 | 1994-11-08 | Nippon Telegr & Teleph Corp <Ntt> | Waveguide type optical pulse multiple circuit |
| CN1285931A (en) * | 1997-11-12 | 2001-02-28 | 布克哈姆技术有限公司 | Optical system and method for changing the lengths of optical paths and the phases of light beams |
| JP2003098497A (en) * | 2001-09-25 | 2003-04-03 | Japan Science & Technology Corp | Optical waveguide type light frequency comb generator |
| CN101614882A (en) * | 2008-06-27 | 2009-12-30 | 三菱电机株式会社 | Optical modulation device photoreactive semiconductor device |
| US20100085991A1 (en) * | 2008-10-07 | 2010-04-08 | Oki Electric Industry Co., Ltd. | Optical resonator and tunable laser |
| CN104102027A (en) * | 2013-04-10 | 2014-10-15 | 鸿富锦精密工业（深圳）有限公司 | Electronic-optic modulator |
-
2013
- 2013-05-14 CN CN201310175860.4A patent/CN104155780A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05297333A (en) * | 1992-04-20 | 1993-11-12 | Sumitomo Cement Co Ltd | Optical modulator |
| JPH06313868A (en) * | 1993-04-28 | 1994-11-08 | Nippon Telegr & Teleph Corp <Ntt> | Waveguide type optical pulse multiple circuit |
| CN1285931A (en) * | 1997-11-12 | 2001-02-28 | 布克哈姆技术有限公司 | Optical system and method for changing the lengths of optical paths and the phases of light beams |
| JP2003098497A (en) * | 2001-09-25 | 2003-04-03 | Japan Science & Technology Corp | Optical waveguide type light frequency comb generator |
| CN101614882A (en) * | 2008-06-27 | 2009-12-30 | 三菱电机株式会社 | Optical modulation device photoreactive semiconductor device |
| US20100085991A1 (en) * | 2008-10-07 | 2010-04-08 | Oki Electric Industry Co., Ltd. | Optical resonator and tunable laser |
| CN104102027A (en) * | 2013-04-10 | 2014-10-15 | 鸿富锦精密工业（深圳）有限公司 | Electronic-optic modulator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141119 |
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| WD01 | Invention patent application deemed withdrawn after publication |