CN110071413A - Dual wavelength 14PIN butterfly laser and preparation method thereof - Google Patents
Dual wavelength 14PIN butterfly laser and preparation method thereof Download PDFInfo
- Publication number
- CN110071413A CN110071413A CN201810064620.XA CN201810064620A CN110071413A CN 110071413 A CN110071413 A CN 110071413A CN 201810064620 A CN201810064620 A CN 201810064620A CN 110071413 A CN110071413 A CN 110071413A
- Authority
- CN
- China
- Prior art keywords
- pin
- butterfly
- 14pin
- thermistor
- shell
- 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.)
- Withdrawn
Links
- 230000009977 dual effect Effects 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title abstract description 3
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 16
- 239000013307 optical fiber Substances 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 7
- 241000218202 Coptis Species 0.000 claims description 6
- 235000002991 Coptis groenlandica Nutrition 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000010287 polarization Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 239000011022 opal Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0405—Conductive cooling, e.g. by heat sinks or thermo-electric elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/042—Arrangements for thermal management for solid state lasers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention provides a kind of dual wavelength 14PIN butterfly laser and preparation method thereof, and dual wavelength 14PIN butterfly laser includes: butterfly shell, the first collimation output section, the second collimation output section；Wherein, butterfly shell includes: temperature-controlled portion, the first LD power-up (including direct current and radio frequency) part, the first LD power monitoring part, the 2nd LD charging portion and the 2nd LD power monitoring part；Temperature-controlled portion includes: thermistor, thermoelectric cooler, and thermistor is mounted in butterfly shell and is welded with 2 pins, and thermoelectric cooler is mounted in butterfly shell and is welded with positive and negative pin.
Description
Technical field
The present invention relates to a kind of butterfly lasers, and in particular to a kind of 14PIN, twin wavelength laser output butterfly laser and its
Production method.
Background technique
Existing 14PIN butterfly laser can only export a kind of specific wavelength, inside also need integrated suitable co-wavelength
Laser component, as shown in Figure 1, being a kind of 14PIN butterfly laser of suitable single wavelength, comprising: butterfly shell collimates defeated
Portion out；Wherein, butterfly shell includes: temperature-controlled portion, LD power-up (including direct current and radio frequency) part, LD power monitoring part；Temperature
Control part includes: thermistor, thermoelectric cooler, thermistor are mounted in butterfly shell and are welded with 2 pins, thermoelectricity system
Cooler is mounted in butterfly shell and is welded with positive and negative pin；LD charging portion include electrical connection: DFB chip, build-out resistor,
Winding inductance；LD power monitoring part includes: being mounted in butterfly shell and be welded with the photodiode of 2 pins；Such as Fig. 2
It show pin definitions table.
As shown in figure 3, collimation output section includes sequentially connecting: A-LENS, shell nozzle, C-LENS, capillary.Using
A-LENS is connected to the front of LD by laser welding spot welding to flush weld；Using C-LENS by shell nozzle export optically coupling to tail
Fibre output, installation polarization relationship type isolator core prevents light to be reflected back LD on C-LENS.
The 14PIN butterfly laser of existing structure, internal temperature-controlling system only make for 1PCS LD and 1PCSPD chip
With being unfavorable for the integrated development of miniaturization of associated upstream instrument and equipment.
Summary of the invention
It is an object of the present invention to provide the 14PIN butterfly lasers that one kind can export 2 kinds of wavelength simultaneously, improve inside laser
The service efficiency of temperature-controlling system, the integrated development of miniaturization for promoting associated upstream instrument and equipment.
It is an object of the present invention to provide the production methods that one kind can export the 14PIN butterfly laser of 2 kinds of wavelength simultaneously.
Dual wavelength 14PIN butterfly laser of the present invention can export 2 kinds of wavelength simultaneously, be a kind of 14PIN butterfly laser
Device, comprising: butterfly shell, the first collimation output section, the second collimation output section；Wherein,
Butterfly shell includes: temperature-controlled portion, the first LD power-up (including direct current and radio frequency) part, the first LD power monitoring portion
Point, the 2nd LD charging portion and the 2nd LD power monitoring part；
Temperature-controlled portion includes: thermistor, thermoelectric cooler, and thermistor is mounted in butterfly shell and is welded with 2
Pin, thermoelectric cooler are mounted in butterfly shell and are welded with positive and negative pin；
First LD charging portion includes electrical connection: the first DFB chip, the first build-out resistor, the first winding inductance；
First LD power monitoring part includes: the first photodiode；
2nd LD charging portion includes electrical connection: the 2nd DFB chip, the second build-out resistor, the second winding inductance；
2nd LD power monitoring part includes: the second photodiode；
First collimation output section includes sequentially connecting: the first A-LENS, the first shell nozzle, the first C-LENS, first
Capillary；
Second collimation output section include sequentially connecting: the 2nd A-LENS, the 2nd C-LENS of second housing nozzle, second
Capillary.
Preferably, first collimation output section is located at the left part of butterfly shell；Second collimation output section is located at butterfly shell
The right part of body.
Preferably, the thermistor connects the 5th pin and the 11st pin, the thermoelectric cooler connect the 1st pin and
14 pins；The first LD charging portion connects the 2nd pin, the 12nd pin, the 13rd pin；First LD power monitoring part
Connect the 3rd pin, 4 pins；The 2nd LD charging portion connects the 6th pin, the 7th pin, the 8th pin；The 2nd LD function
Rate monitor portion connects the 9th pin, the 10th pin.The pin mode, thermistor are located at the first LD charging portion and the 2nd LD
Between charging portion, it is most accurate to sense.
Dual wavelength 14PIN butterfly laser of the present invention makes in the following manner:
A, LD is installed on LD substrate, then gold thread of burn-oning tests its output spectrum and power；
B, after being installed to LD just for 8 ° of the angle tilt of PD, then inductance is installed on LD substrate；
C, by equipped with LD LD substrate be mounted on corresponding LD it is heat sink on；
D, thermoelectric cooler is installed in 14PIN butterfly shell simultaneously welding pin；
E, the LD1 equipped with LD component heat sink is installed on TEC；
F, thermistor is mounted on thermistor substrate；
G, the thermistor substrate equipped with thermistor is attached on TEC；
H, the LD2 equipped with LD component heat sink is installed on TEC；
I, the component for having installed LD, PD, Coil Inductance, TH, TEC is defined into welding gold thread, LD substrate by pin
Included build-out resistor；
J, A-LENS1, A-LENS2 are respectively connected to flush weld to the front of LD1, LD2 using laser welding spot welding；
K, it is exported what shell nozzle exported optically coupling to tail optical fiber using C-LENS, the installation polarization relationship type on C-LENS
Isolator core prevents light to be reflected back LD；
L, capping is carried out using the parallel welder of hot electric pressing to complete the production.
Dual wavelength 14PIN butterfly laser of the present invention, 2 sets of chips share 1 set of temperature-controlling system, substantially increase it
The service efficiency of internal temperature-controlling system compares compared with 14PIN butterfly laser, under identical output channel number, the laser
Device more saves space, there is the integrated development of miniaturization using associated upstream instrument and equipment.It is logical that the laser can be applied to light
Letter, Fibre Optical Sensor, detection of gas, high-precision light sources etc..The laser is encapsulated using the 14PIN butterfly of high reliability, and LD is used
DFB chip, Output optical power is up to 20mW or more.
Detailed description of the invention
Fig. 1 is existing 14PIN laser outside drawing；
Fig. 2 is existing 14PIN laser pin definitions table；
Fig. 3 is existing 14PIN laser coupling principle figure；
Fig. 4 is dual wavelength 14PIN butterfly laser outside drawing of the invention；
Fig. 5 is dual wavelength 14PIN butterfly laser coupling principle figure of the invention；
Fig. 6 is the circuit diagram of dual wavelength 14PIN butterfly laser of the invention；
Fig. 7 is that the pin of dual wavelength 14PIN butterfly laser of the invention defines table；
Fig. 8 is a kind of connection type of dual wavelength 14PIN butterfly laser of the invention；
Fig. 9 is another connection type of dual wavelength 14PIN butterfly laser of the invention.
Main element symbol description:
1 butterfly shell, the first shell of 1a nozzle, the first capillary of 1b, the first tail optical fiber of 1c, 1d second housing nozzle, 1e
Two capillaries, the second tail optical fiber of 1f.
Specific embodiment
The present invention is understood and realized for the ease of persons skilled in the art, it is further now in conjunction with attached drawing and specific implementation
Dual wavelength 14PIN butterfly laser of the present invention is described.
As shown in Figure 4, Figure 5, dual wavelength 14PIN butterfly laser of the present invention includes: butterfly shell 1, the first collimation
Output section, the second collimation output section；LD1, LD2 are encapsulated in the inside of butterfly shell 1, using laser welding spot welding by A-LENS1,
A-LENS2 is connected to the front of LD1, LD2 to flush weld respectively, and the other end of A-LENS1 utilizes C-LENS1 by the first shell nozzle
The light of 1a output is coupled to the first tail optical fiber 1c output by the first capillary 1b, the installation polarization relationship type isolation on C-LENS1
Device core prevents light to be reflected back LD2；The light that second housing nozzle 1d export using C-LENS2 by the other end of A-LENS2 passes through the
Two capillary 1e are coupled to the second tail optical fiber 1f output, and installation polarization relationship type isolator core prevents light to be reflected back on C-LENS2
LD1。
As shown in Figure 6, Figure 7, butterfly shell 1 includes: temperature-controlled portion, LD1 power-up (including direct current and radio frequency) part, LD1
Power monitoring part, LD2 charging portion and LD2 power monitoring part；
Temperature-controlled portion includes: thermistor TH, thermoelectric cooler TEC, and thermistor is mounted in butterfly shell and welds
There is the 5th and the 11st pin, thermoelectric cooler is mounted in butterfly shell and is welded with positive and negative pin i.e. the 1st and 14 pins；
LD1 charging portion includes electrical connection: the first DFB chip, the first build-out resistor, the first winding inductance connect respectively
Connect the 2nd, 12,13 pins；
LD1 power monitoring part includes: the first photodiode connects the 3rd, 4 pins；
LD2 charging portion includes electrical connection: the 2nd DFB chip, the second build-out resistor, the second winding inductance connect respectively
Connect the 6th, 7,8 pins；
LD2 power monitoring part includes: the second photodiode connects the 9th, 10 pins.
The invention laser tail optical fiber has single mode and polarization-maintaining available, and polarization-maintaining tail optical fiber pays attention to delustring when angle when making
It adjusts, to ensure to meet application requirement.
The two ways of polarization-maintaining tail optical fiber output:
A, optical fiber connector bayonet and polarization-maintaining tail optical fiber opal and fibre core point-blank, as shown in Figure 8；
B, the line angle of the line of optical fiber connector bayonet and fibre core and opal and fibre core is 90 °, as shown in Figure 9.
Dual wavelength 14PIN butterfly laser of the present invention makes in the following manner:
A, LD is installed on LD substrate, then gold thread of burn-oning tests its output spectrum and power；
B, after being installed to LD just for 8 ° of the angle tilt of PD, then inductance is installed on LD substrate；
C, by equipped with LD LD substrate be mounted on corresponding LD it is heat sink on；
D, thermoelectric cooler is installed in 14PIN butterfly shell simultaneously welding pin；
E, the LD1 equipped with LD component heat sink is installed on TEC；
F, thermistor is mounted on thermistor substrate；
G, the thermistor substrate equipped with thermistor is attached on TEC；
H, the LD2 equipped with LD component heat sink is installed on TEC；
I, by the component (LD substrate carries build-out resistor) for having installed LD, PD, Coil Inductance, TH, TEC by drawing
Foot definition welding gold thread；
J, A-LENS1, A-LENS2 are respectively connected to flush weld to the front of LD2, LD1 using laser welding spot welding；
K, it is exported what shell nozzle exported optically coupling to tail optical fiber using C-LENS, the installation polarization relationship type on C-LENS
Isolator core prevents light to be reflected back LD；
L, capping is carried out using the parallel welder of hot electric pressing to complete the production.
Dual wavelength 14PIN butterfly laser of the present invention, 2 sets of chips share 1 set of temperature-controlling system, substantially increase it
The service efficiency of internal temperature-controlling system compares compared with 14PIN butterfly laser, under identical output channel number, the laser
Device more saves space, there is the integrated development of miniaturization using associated upstream instrument and equipment.It is logical that the laser can be applied to light
Letter, Fibre Optical Sensor, detection of gas, high-precision light sources etc..The laser is encapsulated using the 14PIN butterfly of high reliability, and LD is used
DFB chip, Output optical power is up to 20mW or more.
Claims (4)
1. a kind of 14PIN butterfly laser characterized by comprising butterfly shell, the first collimation output section, the second collimation are defeated
Portion out；Wherein,
Butterfly shell include: temperature-controlled portion, the first LD charging portion, the first LD power monitoring part, the 2nd LD charging portion and
2nd LD power monitoring part；
Temperature-controlled portion includes: thermistor, thermoelectric cooler, and thermistor is mounted in butterfly shell and is welded with 2 pins,
Thermoelectric cooler is mounted in butterfly shell and is welded with positive and negative pin；
First LD charging portion includes electrical connection: the first DFB chip, the first build-out resistor, the first winding inductance；
First LD power monitoring part includes: the first photodiode；
2nd LD charging portion includes electrical connection: the 2nd DFB chip, the second build-out resistor, the second winding inductance；
2nd LD power monitoring part includes: the second photodiode；
First collimation output section includes sequentially connecting: the first A-LENS, the first shell nozzle, the first C-LENS, the first capillary
Pipe；
Second collimation output section includes sequentially connecting: the 2nd A-LENS, second housing nozzle, the 2nd C-LENS, the second capillary
Pipe.
2. 14PIN butterfly laser as described in claim 1, which is characterized in that first collimation output section is located at butterfly
The left part of shell；Second collimation output section is located at the right part of butterfly shell.
3. 14PIN butterfly laser as claimed in claim 1 or 2, which is characterized in that the thermistor connects the 5th pin
With the 11st pin, the thermoelectric cooler connects the 1st pin and 14 pins；The first LD charging portion connects the 2nd pin, the
12 pins, the 13rd pin；First LD power monitoring part connects the 3rd pin, 4 pins；The 2nd LD charging portion connects
Connect the 6th pin, the 7th pin, the 8th pin；The 2nd LD power monitoring part connects the 9th pin, the 10th pin, thermistor
Between the first LD charging portion and the 2nd LD charging portion.
4. a kind of dual wavelength 14PIN butterfly laser fabrication method, which comprises the steps of:
A, LD is installed on LD substrate, then gold thread of burn-oning tests its output spectrum and power；
B, after being installed to LD just for 8 ° of the angle tilt of PD, then inductance is installed on LD substrate；
C, by equipped with LD LD substrate be mounted on corresponding LD it is heat sink on；
D, thermoelectric cooler is installed in 14PIN butterfly shell simultaneously welding pin；
E, the LD1 equipped with LD component heat sink is installed on TEC；
F, thermistor is mounted on thermistor substrate；
G, the thermistor substrate equipped with thermistor is attached on TEC；
H, the LD2 equipped with LD component heat sink is installed on TEC；
I, the component for having installed LD, PD, Coil Inductance, TH, TEC is defined into welding gold thread by pin, LD substrate is included
Build-out resistor；
J, A-LENS1, A-LENS2 are respectively connected to flush weld to the front of LD1, LD2 using laser welding spot welding；
K, it is exported what shell nozzle exported optically coupling to tail optical fiber using C-LENS, the installation polarization relationship type isolation on C-LENS
Device core prevents light to be reflected back LD；
L, capping is carried out using the parallel welder of hot electric pressing to complete the production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064620.XA CN110071413A (en) | 2018-01-23 | 2018-01-23 | Dual wavelength 14PIN butterfly laser and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064620.XA CN110071413A (en) | 2018-01-23 | 2018-01-23 | Dual wavelength 14PIN butterfly laser and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110071413A true CN110071413A (en) | 2019-07-30 |
Family
ID=67364872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810064620.XA Withdrawn CN110071413A (en) | 2018-01-23 | 2018-01-23 | Dual wavelength 14PIN butterfly laser and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110071413A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1868097A (en) * | 2003-10-15 | 2006-11-22 | 三洋电机株式会社 | Two-beam semiconductor laser apparatus |
| CN1937336A (en) * | 2005-09-22 | 2007-03-28 | 中国科学院半导体研究所 | Butterfly packaging device for semiconductor laser |
| CN102129101A (en) * | 2010-11-23 | 2011-07-20 | 武汉电信器件有限公司 | High-speed butterfly-shaped encapsulating tube shell with coupling lens, light emitter assembly and manufacture process |
| CN102385124A (en) * | 2010-08-25 | 2012-03-21 | Agx技术股份有限公司 | Internal-cooled heat-blocking modular laser packaging system |
| CN102593714A (en) * | 2012-02-28 | 2012-07-18 | 武汉光迅科技股份有限公司 | Single-pump multi-wavelength lasing semiconductor Raman pump laser and pump combination apparatus |
| CN105043716A (en) * | 2015-08-29 | 2015-11-11 | 中国科学院上海光学精密机械研究所 | Miniature test clamp used for disk laser device for controlling shell temperature |
| CN106129794A (en) * | 2016-09-05 | 2016-11-16 | 吉林大学 | A kind of high stability laser beam generating circuit controlled based on PID |
| US20170040768A1 (en) * | 2015-08-04 | 2017-02-09 | AMD Lasers | Multi-Wavelength Laser Diode Package Arrangement |
| CN112134626A (en) * | 2020-10-20 | 2020-12-25 | 江苏亿通高科技股份有限公司 | Laser device for realizing optical wavelength and power control by solely adopting temperature compensation |
-
2018
- 2018-01-23 CN CN201810064620.XA patent/CN110071413A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1868097A (en) * | 2003-10-15 | 2006-11-22 | 三洋电机株式会社 | Two-beam semiconductor laser apparatus |
| CN1937336A (en) * | 2005-09-22 | 2007-03-28 | 中国科学院半导体研究所 | Butterfly packaging device for semiconductor laser |
| CN102385124A (en) * | 2010-08-25 | 2012-03-21 | Agx技术股份有限公司 | Internal-cooled heat-blocking modular laser packaging system |
| CN102129101A (en) * | 2010-11-23 | 2011-07-20 | 武汉电信器件有限公司 | High-speed butterfly-shaped encapsulating tube shell with coupling lens, light emitter assembly and manufacture process |
| CN102593714A (en) * | 2012-02-28 | 2012-07-18 | 武汉光迅科技股份有限公司 | Single-pump multi-wavelength lasing semiconductor Raman pump laser and pump combination apparatus |
| US20170040768A1 (en) * | 2015-08-04 | 2017-02-09 | AMD Lasers | Multi-Wavelength Laser Diode Package Arrangement |
| CN105043716A (en) * | 2015-08-29 | 2015-11-11 | 中国科学院上海光学精密机械研究所 | Miniature test clamp used for disk laser device for controlling shell temperature |
| CN106129794A (en) * | 2016-09-05 | 2016-11-16 | 吉林大学 | A kind of high stability laser beam generating circuit controlled based on PID |
| CN112134626A (en) * | 2020-10-20 | 2020-12-25 | 江苏亿通高科技股份有限公司 | Laser device for realizing optical wavelength and power control by solely adopting temperature compensation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100428591C (en) | Encapsulation structure and method of the high-speed semiconductor light emission component | |
| US7144788B2 (en) | Method for manufacturing a transmitting optical sub-assembly with a thermo-electric cooler therein | |
| CN201004104Y (en) | Small cooling light radiation component | |
| CN104570236B (en) | High-speed butterfly-shaped packaging optical emitter component | |
| CN202886656U (en) | Optical fiber coupling structure capable of adotping movable optical fiber connector | |
| CN208334718U (en) | Heat radiation structure of horizontal optical communication subassembly | |
| CN103018856A (en) | High-speed butterfly-packaged light emitter component with drive IC (integrated circuit) | |
| CN102520491A (en) | Optical emitter assembly and manufacture method thereof | |
| CN207994329U (en) | Dual wavelength 14PIN butterfly lasers | |
| US20140270650A1 (en) | Optical subassembly and method of manufacturing the same | |
| CN201323378Y (en) | CATV butterfly package DFB laser module | |
| CN110595737A (en) | Optical characteristic measuring system and measuring method for micro-area | |
| CN102315586A (en) | Semiconductor laser module with multiple detection sensors and protection devices | |
| CN110071413A (en) | Dual wavelength 14PIN butterfly laser and preparation method thereof | |
| CN210430410U (en) | Single-mode single-frequency high-optical-power semiconductor laser light source for monitoring wind speed | |
| CN217981920U (en) | High-power optical isolator and light-splitting monitoring integrated optical device | |
| CN207704069U (en) | Based on AWG wavelength-division multiplex Snigles | |
| CN104422996A (en) | Photoelectric converter and optoelectronic connection device | |
| CN213715039U (en) | Chip spectral characteristic test system based on multimode optical fiber | |
| CN213240598U (en) | Small-volume light emitting assembly and multichannel parallel optical device | |
| CN115360581A (en) | Coaxially packaged laser device | |
| CN211627884U (en) | Light emitter integrated with driving chip and laser | |
| CN211180308U (en) | High-power pulse tail laser subassembly | |
| CN213714547U (en) | Chip spectral characteristic test system based on single mode fiber | |
| CN112904503B (en) | Multichannel parallel transmission optical device and packaging structure thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190730 |