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Professional Certifications
We have obtained ISO 9001 quality management system and ISO 14001 environmental management system certifications and are actively pursuing IATF 16949 International Automotive Task Force quality management system certification, laying a solid foundation for the application of LiDAR products in the automotive field.
Customized Services
We can provide customized production services for optical fiber products according to customer needs. We implement strict quality control at every stage of the manufacturing process to ensure stable and reliable product performance.
Production Equipment
We have established advanced chip packaging production lines and automatic coupling production lines. Key equipment includes: eutectic die bonding machines, fully automatic eutectic machines, parallel sealing welding machines, TO automatic sealing machines, OSA automatic transmitter coupling machines, and OSA automatic receiver coupling machines.
Professional Team
We maintain close collaborations with renowned research institutions and universities such as the Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Xiamen University, Shenzhen University, Fuzhou University, and Mingde Innovation Laboratory, bringing together a group of experts and technical personnel with long-term experience in optical device research and development.
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Model Number |
BLPW-2-D5320A-55BSA-2GR |
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Brand Name |
Belycomm |
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Mounting Type |
Unniversual type |
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Description |
Coaxial laser diode |
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Type |
Laser Diode |
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Place of Origin |
Fujian, China |
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Package Type |
Surface Mount |
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Package / Case |
Surface Mount |
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Operating Temperature |
-20~70℃ |
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Series |
PWDM |
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Supplier Type |
Original manufacturer, ODM, agency, retailer |
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Media Available |
Datasheet, Photo |
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Max. Reverse Voltage |
2V |
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Max. Forward Current |
120mA |
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Fiber type |
SM G657A2 |
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Channel Number |
1*2 |
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Transmission Wavelength |
1530nm |
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Receiver Wavelength |
1550nm |
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Connector |
SC/APC |
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Power |
2mW |
Characteristics of Laser Diode
Monochromatic
An insubstantial width of radiated narrow light containing only a single color.
Well-directed
In this type, the light will be directed into a narrow beam. It is easy to launch through an optical fibre.
Coherent
A light with a single wavelength emitted by an LED with a wide wavelength.
The important characteristic of a laser diode is its approach or the threshold. The laser diode doesn’t operate until a minimum power is applied. If the light is below its energy, then the emission is weaker than the threshold compared to the full energy.
Types of Laser Diode
Double heterostructure laser diode: Heterostructure is a material that is sandwiched between two n-type and p-type materials. Because of the presence of heterostructure material, this type of laser diode is called a double heterostructure (DH) laser diode. The main advantage of this diode is that the active region is used for better optical amplification.
Quantum well laser diode: The quantum well is a very thin middle layer in the diode. The quantum energy is used for converting electrons from higher energy to lower energy and is responsible for better efficiency.
Separate confinement heterostructure laser diode: There are two additional layers along with three layers. These layers have a lower refractive index and the emission of light is also improved.
Vertical cavity surface-emitting laser diode: In this type of laser diode, the optical cavity is along the axis of the current flow.
P-N junction
It is the fundamental structure of lasthe er diode. A p-N junction is formed when the p-type and n-type regions meet. P-type and N-type regions are often made of materials such as gallium arsenide (GaAs) grown epitaxially on a substrate. The p-n junction creates a barrier that prevents the carriers (holes and holes) from moving electrons between two regions.
Active Region
The laser action takes place here. It is located within the p-n junction. It is a thin layer of semiconductor material usually made of different compounds such as GaAs or InGaAs.In the active area, charge carriers (electrons and holes) recombine, releasing energy in the form of photons. This area is also known as the enhancement medium because it is responsible for amplifying the light from stimulated emission.
Mirrors
Each end of a laser diode has two mirrors, one of which is completely reflective and the other of which is only partially reflective. Highly reflective mirrors are created through the process of cleaving. This glass is necessary to create optical gaps that allow photons to bounce back and forth, making light visible.
Metal Contact
The input terminals are attached to the metal plates which is between the n -type and p- type layers .
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Laser diode material (active region / substrate) |
Typical emission wavelengths |
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InGaN / GaN, SiC |
380, 405, 450, 470 nm |
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AlGaInP / GaAs |
635, 650, 670 nm |
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AlGaAs / GaAs |
720–850 nm |
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InGaAs / GaAs |
900–1100 nm |
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InGaAsP / InP |
1.2–2.0 μm |
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AlGaAsSb / GaSb |
1.8–3.4 μm |
Consumer electronics
This includes laser printers, CDs and DVD players, and fibre optic communication.
01
Industrial applications
When it comes to industrial applications, laser diode is preferred as it is a source of a high-intensity laser beam and used for cutting, drilling, welding, etc.
02
Medical applications
Laser diodes are used for the elimination of unwanted tissues and tumours and also in dental medication.
03
Scientific instrumentation
Instruments like spectrometers, range finders, contact-less measurements can be done with the help of laser diodes.
04
The laser diode in telecom
Laser diodes with 1.3 μm and 1.55 μm bands are used as the main source of light in telecom and as the band changes laser diodes find application in optical amplification.
05
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Selling Units |
Single item |
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Single package size |
29X22.5X5.5 cm |
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Single gross weight |
1.000 KG |
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Quantity (pieces) |
1 - 100 |
101 - 1000 |
1001 - 10000 |
> 10000 |
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Lead time (days) |
16 |
17 |
20 |
To be negotiated |
As one of the most professional laser diode manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy customized laser diode from our factory.
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