
( Brand: Thorlabs ), ( Manufacturer Part Number: FESH0750 ), ( Part Type: Filter )
The Thorlabs FESH0750 shortpass filter is an optically flat, high quality, fused silica glass component designed for use in optical setups requiring selective transmission of light below a specific wavelength. This particular model is optimized for transmission at wavelengths shorter than 750 nm, making it an excellent choice for applications in the near-infrared region of the spectrum.
The FESH0750 shortpass filter is manufactured using a unique fabrication process that involves fusing a thin, dense, and transparent layer of silicon oxide onto the filter surface. This layer serves as a highly reflective mirror for longer wavelengths, while allowing shorter wavelengths to pass through. The result is a high transmission coefficient for desired wavelengths and a very low reflection coefficient for longer wavelengths, ensuring efficient separation of wavelengths.
The filter has a square shape with dimensions of 25.4 mm x 25.4 mm (1 inch x 1 inch) and a thickness of 1 mm (0.04 inches). Its edges are carefully polished to ensure excellent optical flatness and parallelism, which is essential for maintaining the performance of the filter in various optical setups.
The FESH0750 shortpass filter is designed to provide a high level of optical efficiency and excellent rejection of longer wavelengths. It features a typical transmission of greater than 85% at 750 nm and a reflectance of less than 1% at 850 nm. Additionally, it exhibits low absorption and low scattering, ensuring minimal loss of light and maintaining the signal integrity in your optical system.
The filter is packaged in a protective black anodized aluminum box, which helps to protect it from dust, moisture, and other environmental factors that could potentially degrade its performance. It is also available with an optional UV fused silica cover slip, which provides additional protection against contamination and ensures optimal filter performance over extended periods.
The Thorlabs FESH0750 shortpass filter is a versatile and reliable component for various applications in research, industrial, and OEM settings, where selective transmission or rejection of specific wavelengths is required. It can be used in a wide range of fields, including spectroscopy, laser technology, and analytical instrumentation, to name a few.
With its high transmission efficiency, excellent rejection of longer wavelengths, and robust design, the FESH0750 shortpass filter from Thorlabs is an excellent choice for applications where high-performance wavelength selection is essential.
The Thorlabs FESH0750 shortpass filter is a optical component designed for use in various applications, particularly in the field of laser technology and spectroscopy. It transmits wavelengths above 750 nm and blocks wavelengths below 750 nm. Here are some potential pros and cons of using this filter:
Pros:1. High Transmission: This filter has a high transmission efficiency for wavelengths above 750 nm, making it suitable for applications that require selective transmission of longer wavelengths.
2. Blocks Shorter Wavelengths: The filter effectively blocks wavelengths below 750 nm, which can be useful in applications where it is necessary to eliminate unwanted shorter wavelengths.
3. Durable: Thorlabs is known for manufacturing high-quality optical components, and the FESH0750 filter is no exception. It is made from Schott BK7 glass, which is known for its durability and optical quality.
4. Versatile: The filter can be used in a wide range of applications, including laser systems, spectroscopy, and imaging systems.
Cons:1. Limited Wavelength Range: The filter only passes wavelengths above 750 nm, which may not be suitable for all applications.
2. Additional Cost: Compared to broadband filters or those with a wider wavelength range, the FESH0750 filter may be more expensive.
3. Sensitivity to Temperature: Like many optical filters, the FESH0750 filter is sensitive to temperature changes, which can affect its transmission properties.
4. Limited Mounting Options: The filter is available with only a few mounting options, which may not be suitable for all applications.
In conclusion, the Thorlabs FESH0750 shortpass filter is a high-quality optical component that is well-suited for applications that require selective transmission of longer wavelengths and rejection of shorter wavelengths. Its high transmission efficiency, durability, and versatility make it a valuable tool in many fields, including laser technology and spectroscopy. However, its limited wavelength range and sensitivity to temperature are important considerations that should be taken into account when deciding whether or not to use this filter.
Recommendation: If your application requires selective transmission of longer wavelengths and rejection of shorter wavelengths, the Thorlabs FESH0750 shortpass filter is an excellent choice. Its high transmission efficiency, durability, and versatility make it a valuable tool in many fields. However, be sure to consider its limited wavelength range and sensitivity to temperature before making a final decision. Additionally, make sure to choose the appropriate mounting option for your application.
It is a high-quality filter ideal for use in medical, laboratory, and industrial settings. The Thorlabs FESH0750 Premium Shortpass Filter 750 nm is a specialized optical filter designed to block longer wave lengths while transmitting light at.