GaAs laser epitaxial wafer 4 inch 6 inch VCSEL vertical cavity surface emission laser wavelength 940nm single junction

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Customer specified design Gigabit Ethernet laser arrays for high uniformity 6-inch wafers 850/940nm center optical wavelength oxide limited or proton-implanted VCSEL digital data link communication, laser mouse electrical and optical characteristics low sensitivity to temperature. The VCSEL-940 Single Junction is a vertical cavity surface emitting laser (VCSEL) with an emission wavelength typically around 940 nanometers. Such lasers typically consist of a single quantum well and are capable of providing efficient light emission. The wavelength of 940 nanometers makes it in the infrared spectrum, suitable for a variety of applications. Compared with other types of lasers, VCsels have higher electro-optical conversion efficiency. The VCSEL package is relatively small and easy to integrate. The wide application of the VCSEL-940 has made it play an important role in modern technology.

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The main characteristics of GaAs laser epitaxial sheet include

1. Single-junction structure: This laser is usually composed of a single quantum well, which can provide efficient light emission.
2. Wavelength: The wavelength of 940 nm makes it in the infrared spectrum range, suitable for a variety of applications.
3. High efficiency: Compared with other types of lasers, VCSEL has a high electro-optical conversion efficiency.
4. Compactness: The VCSEL package is relatively small and easy to integrate.

5. Low threshold current and high efficiency: Buried heterostructure lasers exhibit extremely low lasing threshold current density (e.g. 4mA/cm²) and high external differential quantum efficiency (e.g. 36%), with linear output power exceeding 15mW.
6. Waveguide mode stability: The buried heterostructure laser has the advantage of waveguide mode stability due to its refractive index guided waveguide mechanism and narrow active strip width (about 2μm).
7. Excellent photoelectric conversion efficiency: By optimizing the epitaxial growth process, high internal quantum efficiency and photoelectric conversion efficiency can be obtained to reduce internal loss.
8. High reliability and life: high-quality epitaxial growth technology can prepare epitaxial sheets with good surface appearance and low defect density, improving product reliability and life.
9. Suitable for a variety of applications: GAAS-based laser diode epitaxial sheet is widely used in optical fiber communication, industrial applications, infrared and photodetectors and other fields.

The main application ways of GaAs laser epitaxial sheet include

1. Optical communication and data communication: GaAs epitaxial wafers are widely used in the field of optical communication, especially in high-speed optical communication systems, for manufacturing optoelectronic devices such as lasers and detectors.

2. Industrial applications: GaAs laser epitaxial sheets also have important uses in industrial applications, such as laser processing, measurement and sensing.

3. Consumer electronics: In consumer electronics, GaAs epitaxial wafers are used to manufacture VCsels (vertical cavity surface-emitting lasers), which are widely used in smartphones and other consumer electronics.

4. Rf applications: GaAs materials have significant advantages in the RF field and are used to manufacture high-performance RF devices.

5. Quantum dot lasers: GAAS-based quantum dot lasers are widely used in communication, medical and military fields, especially in the 1.31µm optical communication band.

6. Passive Q switch: The GaAs absorber is used for diode-pumped solid state lasers with passive Q switch, which is suitable for micro-machining, ranging and micro-surgery.

These applications demonstrate the potential of GaAs laser epitaxial wafers in a wide range of high-tech applications.

XKH offers GaAs epitaxial wafers with different structures and thicknesses tailored to customer requirements, covering a wide range of applications such as VCSEL/HCSEL, WLAN, 4G/5G base stations, etc. XKH's products are manufactured using advanced MOCVD equipment to ensure high performance and reliability. In terms of logistics, we have a wide range of international source channels, can flexibly handle the number of orders, and provide value-added services such as thinning, segmentation, etc. Efficient delivery processes ensure on-time delivery and meet customer requirements for quality and delivery times. After arrival, customers can get comprehensive technical support and after-sales service to ensure that the product is put into use smoothly.