
( Brand: Thorlabs ), ( Model: FEH1350 ), ( Part Type: Filter ), ( Cut-on Wavelength: 1350 Nm )
The FEH1350 Longpass Filter from Thorlabs is a high-quality optical component specifically designed for applications requiring the transmission of wavelengths longer than 1350 nm. This filter is an essential tool for professionals in various fields such as telecommunications, fiber optics, and research.
The FEH1350 Longpass Filter is constructed with a precision-machined, optical-grade fused silica substrate, ensuring excellent flatness, parallelism, and surface quality. The filter's longpass property allows it to block wavelengths below 1350 nm, effectively passing only those longer wavelengths. This feature can be used to isolate and focus on specific bands of light in complex spectral environments.
The FEH1350 Longpass Filter boasts a high optical density (OD) of 4.0 at 1300 nm, ensuring effective rejection of shorter wavelengths. It also exhibits a relatively low transmission loss of 1.2 dB/mm at 1550 nm, contributing to the overall efficiency of your optical system. The filter's edge wavelength is located at approximately 1360 nm, providing a smooth and gradual cut-off.
The FEH1350 Longpass Filter is available in various sizes to cater to a wide range of applications. Its robust construction and durable coating make it suitable for use in harsh environments, ensuring reliable performance over time. The filter is easy to install and can be used with a variety of optical components, making it a versatile addition to your laboratory or field equipment.
In summary, the FEH1350 Longpass Filter from Thorlabs is a high-performance optical filter designed for applications requiring longpass filtering at 1350 nm. Its precision construction, excellent optical properties, and versatile size options make it an ideal choice for professionals in various fields.
The Thorlabs FEL1350 Longpass Filter is designed to pass wavelengths longer than 1350nm and block shorter wavelengths. Here are some pros and cons of purchasing this product:
Pros:1. High Quality: Thorlabs is a reputable company known for producing high-quality optical components. The FEL1350 filter is no exception.
2. Longpass Filter: This filter is ideal for applications that require blocking shorter wavelengths while passing longer ones, such as in telecommunications, spectroscopy, and laser systems.
3. High Transmission: The filter offers high transmission efficiency, ensuring minimal loss of the desired wavelength.
4. Durable: The filter is designed to withstand harsh environments, making it suitable for industrial and research applications.
Cons:1. Specific Wavelength: The filter is designed for a specific wavelength of 1350nm. If your application requires a different wavelength, you may need to look for a different filter.
2. Cost: Compared to some other optical filters, the FEL1350 may be more expensive. However, its high quality and durability may justify the cost for some users.
3. Size: Depending on the specific model, the filter may be larger than some other filters, which could be a disadvantage for applications with limited space.
In conclusion, the Thorlabs FEL1350 Longpass Filter is a high-quality product suitable for applications that require a longpass filter for wavelengths longer than 1350nm. Its high transmission efficiency, durability, and high-quality construction make it a good choice for many applications. However, its specific wavelength, cost, and size may be drawbacks for some users. If you have an application that requires a different wavelength or a smaller filter, you may want to consider other options. Overall, if your application matches the specifications of the FEL1350, it is a recommended product.
New, unused longpass infrared filter with cut-on wave length 1350 nm. The box was opened, however item never used.