CN203660274U - A miniaturized electro-absorption modulated laser emitter - Google Patents
A miniaturized electro-absorption modulated laser emitter Download PDFInfo
- Publication number
- CN203660274U CN203660274U CN201420009656.5U CN201420009656U CN203660274U CN 203660274 U CN203660274 U CN 203660274U CN 201420009656 U CN201420009656 U CN 201420009656U CN 203660274 U CN203660274 U CN 203660274U
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- CN
- China
- Prior art keywords
- laser
- chip
- refrigerating unit
- electro
- thermoelectric refrigerating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 28
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 241000931526 Acer campestre Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The utility model relates to a laser emitter. A miniaturized electro-absorption modulated laser emitter mainly comprises a laser modulator integrated chip, an optical detector, a sealed tube shell, an optical connector, double lenses, an optical isolator, a thermoelectric refrigerating unit and a flexible circuit. The thermoelectric refrigerating unit is attached to the bottom of a carrier of the laser chip and used for controlling the temperature of the laser chip; the bottom of the thermoelectric refrigerating unit is pressed against the sealed tube shell so that the attaching force of the thermoelectric refrigerating unit can be increased, the thermoelectric refrigerating unit is prevented from falling off and the heat dissipation of the laser chip is facilitated. The miniaturized electro-absorption modulated laser emitter enables the cost of the long-distance optical communication equipment laying to be reduced greatly. The internal optical path is provided with the double lenses and the optical isolator is disposed between the lenses, so that the tolerance of the light path system is reduced, the light reflection is prevented and the light emitted by the laser emitter has better monochromaticity, directivity and stability.
Description
Technical field
The utility model relates to a kind of generating laser, more particularly, relates to a kind of miniaturization electro-absorption modulation generating laser.
Background technology
The problems such as general generating laser ubiquity volume ratio is large in the market, cost is relatively high, processing technology is complicated, transmission range is nearer.Along with continuing to increase of communication flows and setting up of light delivery, its communication line is also constantly to high speed, high capacity future development, and the power consumption increase therefore causing becomes the problem of being badly in need of solution.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the utility model object is to provide a kind of miniaturization electro-absorption modulation generating laser.In order to solve the defect that on market, generating laser exists, existing generating laser volume-diminished is adopted the thermoelectric cooling technology of integrated chip technology and low-power consumption by we, realizes the transmission of high speed, long stable distance wavelength.
In order to realize foregoing invention object, the technical scheme that the utility model is taked is: a kind of miniaturization electro-absorption modulation generating laser, mainly comprises laser modulator integrated chip, photo-detector, Dew Point, optical interface, double lens, optical isolator, thermoelectric refrigerating unit and band flexible circuit.The carrier below of described chip of laser mounts thermoelectric refrigerating unit, and for controlling the temperature of chip of laser, Dew Point is close in the below of described thermoelectric refrigerating unit, for increasing attaching power, the difficult drop-off of thermoelectric refrigerating unit, be convenient to chip of laser heat radiation.
The inner light path of described generating laser arranges double lens.
Between described lens and lens, optical isolator is set, for reducing light path system tolerance, prevents light reflection.
The front end setting of described chip of laser has the optical modulator chip of modulation function.
Described chip of laser and optical modulator integrated chip are together.
Described sealing device is, under nitrogen environment, shell is carried out to seal operation, thereby realizes the sealing to inner all component in shell.
Flexible flexible circuit is with in the welding of described shell pipe leg place.
The utility model beneficial effect is: compared with the prior art miniaturization electro-absorption modulation generating laser, can make the optical communication equipment laying cost of long distance reduce widely.Such as realizing optical communication in the distance of 40Km in the past, although can only just can meet the demands with a generating laser, because volume is relatively large, not only the material cost of himself is high, and also corresponding larger for other corollary equipment volumes of optical communication, cost is also corresponding higher.And miniaturization electro-absorption modulation generating laser does not only adopt a transmission range requirement that just can meet 40Km, and due to integrated, enthusiasm, the shell volume of its carries chips are very little, also corresponding dwindling of the communication equipment volume supporting with it, thus can greatly reduce cost.The inner light path of the utility model arranges double lens, between described lens and lens, optical isolator is set, and for reducing light path system tolerance, prevents light reflection, makes the light that generating laser emits have better monochromaticjty, directivity and stability.In addition, flexible flexible circuit is with in the welding of described shell pipe leg place, can carry out erection welding by printed circuit board (PCB) good and optical module for this miniaturization generating laser, has higher flexibility, reliability and good electrical property.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1, laser modulator integrated chip, 2, photo-detector, 3, Dew Point, 4, optical interface, 5, first lens, 5a, the second lens, 6, optical isolator, 7, thermoelectric refrigerating unit, 8, be with flexible flexible circuit.
Embodiment
As shown in Figure 1, the carrier below of described laser modulator integrated chip 1 mounts thermoelectric refrigerating unit 7, for controlling the temperature of laser modulator integrated chip 1, makes the optical maser wavelength of generating laser transmitting keep stable, the Wavelength stabilized transmission range that equally also can improve.Dew Point 3 is close in the below of described thermoelectric refrigerating unit 7; for increasing the attaching power of thermoelectric refrigerating unit 7, not only described laser modulator integrated chip 1 can be dispelled the heat better; and in the time that product is subject to slightly shaking, can protect thermoelectric refrigerating unit 7 to make its difficult drop-off.The inner light path of described generating laser arranges double lens 5, and optical isolator 6 is set between described lens and lens, for reducing light path system tolerance, prevents light reflection, makes the light that generating laser emits have better monochromaticjty, directivity and stability.
Described laser modulator integrated chip 1 is the optical modulator chip front end setting of chip of laser to modulation function, and chip of laser and optical modulator chip integrate, the light signal of modulation is not just on being directly added on chip of laser like this, but be applied on optical modulator chip 2, its output can obtain the light signal of modulation, solve because of the problem of warbling that directly modulation produces, thereby effectively improved transmission range.
Claims (7)
1. a miniaturization electro-absorption modulation generating laser, it is characterized in that: mainly comprise laser modulator integrated chip, photo-detector, Dew Point, optical interface, double lens, optical isolator, thermoelectric refrigerating unit and band flexible circuit, the carrier below of described chip of laser mounts thermoelectric refrigerating unit, for controlling the temperature of chip of laser, Dew Point is close in the below of described thermoelectric refrigerating unit, for increasing attaching power, the difficult drop-off of thermoelectric refrigerating unit, be convenient to chip of laser heat radiation.
2. a kind of miniaturization electro-absorption modulation generating laser according to claim 1, is characterized in that: the inner light path of described generating laser arranges double lens.
3. a kind of miniaturization electro-absorption modulation generating laser according to claim 1 and 2, is characterized in that: between described lens and lens, optical isolator is set, for reducing light path system tolerance, prevents light reflection.
4. a kind of miniaturization electro-absorption modulation generating laser according to claim 1, is characterized in that: the front end setting of described chip of laser has the optical modulator chip of modulation function.
5. a kind of miniaturization electro-absorption modulation generating laser according to claim 1, is characterized in that: described chip of laser and optical modulator integrated chip are together.
6. a kind of miniaturization electro-absorption modulation generating laser according to claim 1, is characterized in that: described sealing device is, under nitrogen environment, shell is carried out to seal operation, thereby realizes the sealing to inner all component in shell.
7. a kind of miniaturization electro-absorption modulation generating laser according to claim 1, is characterized in that: flexible flexible circuit is with in the welding of described shell pipe leg place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009656.5U CN203660274U (en) | 2014-01-08 | 2014-01-08 | A miniaturized electro-absorption modulated laser emitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009656.5U CN203660274U (en) | 2014-01-08 | 2014-01-08 | A miniaturized electro-absorption modulated laser emitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203660274U true CN203660274U (en) | 2014-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420009656.5U Expired - Lifetime CN203660274U (en) | 2014-01-08 | 2014-01-08 | A miniaturized electro-absorption modulated laser emitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203660274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042484A1 (en) * | 2018-08-28 | 2020-03-05 | 武汉电信器件有限公司 | Dual-carrier integrated optical device and photoelectric module |
-
2014
- 2014-01-08 CN CN201420009656.5U patent/CN203660274U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042484A1 (en) * | 2018-08-28 | 2020-03-05 | 武汉电信器件有限公司 | Dual-carrier integrated optical device and photoelectric module |
| US11675149B2 (en) | 2018-08-28 | 2023-06-13 | Wuhan Telecommunication Devices Co., Ltd | Dual-carrier integrated optical device and photoelectric module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |