Fiber Optic Sensors Fiber Optic Collimator 850nm 1300nm Multimode Fiber Collimator

The fiber collimator converts scattered light into collimated beams through the coupling of precision lenses and fiber end faces, significantly reducing the loss and crosstalk of optical signals during transmission. Its core design includes an 8 ° oblique angle (APC type) polishing process, which can effectively suppress end face reflection, with a return loss of ≥ 50dB, ensuring signal integrity for long-distance transmission. For example, in high bandwidth scenarios such as 5G base stations and data centers, this device can reduce optical path offset, improve network throughput, and support single-mode (1310nm/1550nm) and multi-mode (850nm/1300nm) wavelengths, adapting to WDM wavelength division multiplexing systems and providing stable support for high-speed fiber optic communication.

For special optical scenarios, customized fiber collimators can adjust the lens focal length, fiber type, and packaging form to meet specific wavelength (such as 2 μ m infrared light) or extreme environmental (such as high temperature and high humidity) requirements. For example, in laser radar and infrared thermal imaging applications, optimizing coating processes and lens materials can expand beam coverage, reduce spot non-uniformity, and support multi fiber core options (single fiber/dual fiber/four fiber), providing precise optical support for industrial automation and military security fields.

The fiber collimator is integrated with a micro lens (diameter 1mm-2mm) through a tight fitting fiber optic package (outer diameter 0.9mm/2.0mm), reducing its volume by more than 50% compared to traditional structures while maintaining anti vibration performance (mechanical stability up to 0.01mrad). For example, in precision measuring equipment such as interferometers and spectrometers, this design can embed narrow optical path modules, simplify installation processes, and ensure stable operation at extreme temperatures (-40 ℃ to+85 ℃), providing reliable optical interfaces for aerospace and portable medical devices.

The high-resolution fiber collimator, designed with non spherical lenses for aberration reduction, can significantly reduce insertion loss (≤ 0.3dB) and beam divergence angle (typical value 0.01 °), improving the clarity and contrast of optical imaging. For example, in microscope imaging and laser processing applications, this design can reduce optical path offset, ensure high-precision positioning, and support single-mode and multi-mode wavelengths, providing stable optical performance for scientific research experiments and industrial inspections.