1650nm fiber grating optical filter is a critical component in optical communication systems designed for detection purposes. Functionally, it acts as a band-pass filter, reflecting light within the range of 1643.5nm to 1656.5nm back with a reflectivity exceeding 99.5%, akin to total reflection, while allowing all other wavelengths to pass through unaffected. This device is particularly useful in separating communication signals (commonly in the C + L bands) from detection signals, thereby safeguarding the integrity of the communication signals by preventing interference from the detection light. Additionally, it facilitates the monitoring of reflected light at various points in the network. Fiber grating technology offers superior performance metrics compared to traditional coating methods across all relevant parameters.
Environmental Immunity: The grating is integrated into the fiber itself, making it inherently resistant to environmental contaminants.
High Reliability: Offers enhanced durability and a longer operational lifespan compared to alternative solutions.
High Reflectivity: For the designated blockage bands, the reflectivity exceeds 99.5%, approaching complete reflection.
Precise Wavelength Control: The reflection band is accurately tuned to the specified range of 1643.5nm to 1656.5nm.
Sharp Transition Edge: The transition region between the reflective and transmissive bands is extremely narrow (less than 2nm), effectively creating an all-pass zone.
Standardized Connector: Utilizes a standard connector design for ease of integration and connectivity.
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