Adjustable Focus Collimator

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Product Description
  • Fiber optic collimator with FC/APC interface
  • Operating wavelength 350 nm-1700 nm
  • Nickel-copper alloy structure, purely mechanical assembly, featuring high stability and reliability
  • Aspheric lens design with aspherical aberration correction performance
The fiber optic collimator is a commonly used passive optical component in optical fiber signal transmission, which can convert the divergent light from the fiber output end into collimated light (parallel light) through the internal aspheric lens. LBTEK's adjustable fiber collimators include models with FC/APC fiber connectors, designed for use with single-mode fiber jumpers. They offer adjustable collimators with anti-reflection coatings covering ranges of 350 nm-700 nm, 600 nm-1050 nm, and 1050 nm-1700 nm, featuring a housing diameter of 12 mm. Additionally, the adjustable fiber collimators can be fine-tuned for collimation within their specified wavelength bands, ensuring excellent collimation performance across the anti-reflection coating range. The purely mechanical fixation provides higher durability and stability, while also being less susceptible to environmental factors such as temperature and humidity, thereby enhancing the collimator's reliability. LBTEK also offers various customization services, including special dimensions, design wavelengths, and output spot diameters, among other specifications. For specific customization requirements, please contact LBTEK technical support.
Adjustable Focus Collimator, FC/APC Connector
  • Connector: FC/APC
  • Focal Length: 2.0/4.6/7.5/11 mm
  • Internal Lens: Aspherical Lens

Adjustable focus collimators provided by LBTEK feature a compact structure that simplifies free-space laser-to-fiber coupling. With FC/APC connector to enhance return loss, the adjustable focus collimators currently offer three coating wavelength options: 350 nm-700 nm/600 nm-1050 nm/1050 nm-1700 nm, with selectable focal lengths of 2 mm/4.6 mm/7.5 mm/11.0 mm. Each adjustable focus collimator is coated with anti-reflection coating to reduce reflectivity. For detailed parameters, please refer to the parameter table or curve data. The purchase of collimators includes corresponding eccentric adjustment accessories. LBTEK provides various custom services. For specific custom requirements, please contact LBTEK Technical Support.

The adjustable collimator in the coaxial adjustment mount ( TAD-12 Adapter required).

Product Model
Effective Focal Length
Anti-reflection coating range<sup>e</sup>
Output beam waist diameter<sup>a</sup>
Unit Price
Compare
Lead Time
ADFCC-2.0-APC Up2.0 mm1050-1700 nm0.38 mm$244.098 weeks
ADFCB-2.0-APC Up2.0 mm600-1050 nm0.40 mm$244.098 weeks
ADFCA-2.0-APC Up2.0 mm350 - 700 nm0.36 mm$244.098 weeks
ADFCC-11.0-APC Up11.0 mm1050-1700 nm2.14 mm$244.096 weeks
ADFCB-11.0-APC Up11.0 mm600 - 1050 nm2.38 mm$244.096 weeks
ADFCA-11.0-APC Up11.0 mm350 - 700 nm2.03 mm$244.096 weeks
ADFCC-7.5-APC Up7.5 mm1050-1700 nm1.45 mm$244.096 weeks
ADFCB-7.5-APC Up7.5 mm600-1050 nm1.62 mm$244.096 weeks
ADFCA-7.5-APC Up7.5 mm350 - 700 nm1.36 mm$244.096 weeks
ADFCC-4.6-APC Up4.6 mm1050-1700 nm0.89 mm$244.096 weeks
ADFCB-4.6-APC Up4.6 mm600-1050 nm1.0 mm$244.096 weeks
ADFCA-4.6-APC Up4.6 mm350 - 700 nm0.85 mm$244.096 weeks
Eccentric adjustment lever
  • Material: 303 stainless steel
  • Surface treatment: pickling and passivation
  • Eccentric rotating lever with knurled pattern
  • Adjustment range: ±0.8mm, ±1mm

The LBTEK eccentric adjustment lever is used to adjust fiber optic couplers. By rotating the eccentric adjustment lever, the adjustable focusing part of the coupler can be moved. Currently, there are two models of eccentric adjustment levers available: 85EK-08 and 10EK-10, with adjustment ranges of ±0.8mm and ±1mm respectively. The 85EK-08 eccentric adjustment lever is suitable for the three-axis FP3 series, while the 10EK-10 eccentric adjustment lever is compatible with the focus-adjustable  ADFC series.

Adjustment  of fiber optic coupler via adjustment  lever

Product Model
Adjustment range
Unit Price
Compare
Lead Time
10EK-10 ±1 mm$7.196 weeks
85EK-08 ±0.8 mm$6.546 weeks
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