High-Precision Rotatable Focus-Adjustable Collimator

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Product Description
  • Wavelength Range: 400–1700 nm
  • Silicon Brass Construction for High Strength and Rigidity
  • Aspheric or Achromatic Lens for Effective Aberration Correction
  • High precision: 0.2 mm Lateral Travel per Revolution
A fiber collimator is a commonly used passive optical component that converts divergent light exiting a fiber into a collimated beam (parallel light) via an internal aspheric lens. LBTEK offers adjustable fiber collimators with FC/APC and FC/PC connector types, designed for use with single-mode fiber patch cables. Available AR coating options cover 400–700 nm, 700–1100 nm, and 1100–1700 nm, with a housing diameter of 12 mm. Rotatable adjustable-focus collimators are available in both achromatic and aspheric designs, supporting collimated output across multiple wavelengths. Achromatic doublet lenses ensure excellent collimation performance across the entire AR coating range, while aspheric lenses deliver optimal performance at a single design wavelength. LBTEK also provides custom solutions, including non-standard dimensions, custom design wavelengths, and specified output beam diameters. For custom requirements, please contact LBTEK technical support.
Diagram
Product Model
Effective Focal Length
Anti-reflection coating rangee
Lens Type
Quantity
File
Unit Price
Compare
Lead Time
PRACFCD-4.5-C-APC-P5 New4.5 mm1050 nm-1700 nmmolded aspherical surface5 pcs
$1,754.25today
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PRACFCD-4.5-B-APC-P5 New4.5 mm600 nm-1050 nmMolded aspherical5 pcs
$1,754.25today
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PRACFCD-4.5-A-APC-P5 New4.5 mm350 nm-700 nmMolded aspherical5 pcs
$1,754.25today
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PRACFCD-7.5-C-APC-P5 New7.5 mm1050 nm-1700 nmMolded Aspheric5 pcs
$1,754.25today
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PRACFCD-7.5-B-APC-P5 New7.5 mm600 nm-1050 nmmolded aspheric5 pcs
$1,754.25today
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PRACFCD-7.5-A-APC-P5 New7.5 mm350 nm-700 nmMolded aspherical5 PCS
$1,754.25today
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PRACFCD-11-C-APC-P5 New11.0 mm1050 nm-1700 nmMolded aspheric5 pcs
$1,754.25today
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PRACFCD-11-B-APC-P5 New11.0 mm600 nm-1050 nmMolded aspheric5 pcs
$1,754.25today
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PRACFCD-11-A-APC-P5 New11.0 mm350 nm-700 nmMolded Aspherical5 pcs
$1,754.25today
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High-Precision Rotatable Adjustable-Focus Collimator, FC/APC interface
  • Connector: FC/APC
  • Focal Length (f): 4.5/7.5/11 mm
  • Internal Lens: Achromatic Doublet / Aspheric Lens Optional

The High-Precision Rotatable Adjustable-Focus Collimator provided by LBTEK features a Compact Form Factor, which simplifies Free-Space-to-Fiber Coupling (during coupling, it is recommended to slightly tighten the locking screw before focal length adjustment to reduce backlash crosstalk). Meanwhile, the rotation precision provides a lateral displacement of up to 0.2 mm per revolution, and with the FC/APC interface, the return loss can be increased. The Adjustbale-Focus Collimator currently offers three coating wavelength options: 400 nm-700 nm/700 nm-1100 nm/1100 nm-1700 nm, with selectable Focal Lengths (f) of 4.6 mm/7.5 mm/11.0 mm. Each Adjustbale-Focus Collimator is coated with an Antireflection Coating (AR Coating) to reduce Reflectance. For detailed parameters, please refer to the parameter table or curve data. LBTEK provides various custom solutions; for specific custom requirements, please contact LBTEK technical support.

Adjustbale-Focus Collimator is installed in MT-AM05S3

Product Model
Effective Focal Length
Anti-reflection coating rangee
Output beam waist diametera
Lens Type
File
Unit Price
Compare
Lead Time
PRADFCD-4.5-C-APC 4.5 mm1050 nm-1650 nm0.86 mmAchromatic doublet lens
$370.04today
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PRADFCD-4.5-B-APC 4.5 mm700-1100 nm0.98 mmAchromatic doublet lens
$370.04today
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PRADFCD-4.5-A-APC 4.5 mm400 - 700 nm0.84 mmAchromatic doublet lens
$370.04today
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PRACFCD-4.5-C-APC 4.5 mm1050 nm-1700 nm0.88 mmMolded aspheric lens
$370.04today
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PRACFCD-4.5-B-APC 4.5 mm600 nm-1050 nm0.98 mmMolded aspheric lens
$370.04today
Add Cart
PRACFCD-4.5-A-APC 4.5 mm350 nm- 700 nm0.82 mmMolded aspheric lens
$370.04today
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PRADFCD-7.5-C-APC 7.5 mm1050 nm-1650 nm1.43 mmAchromatic doublet lens
$370.04today
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PRADFCD-7.5-B-APC 7.5 mm700 nm-1100 nm1.63 mmAchromatic doublet lens
$370.04today
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PRADFCD-7.5-A-APC 7.5 mm400 nm-700 nm1.41 mmAchromatic doublet lens
$370.04today
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PRACFCD-7.5-C-APC 7.5 mm1050 nm-1700 nm1.45 mmMolded aspheric lens
$370.04today
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PRACFCD-7.5-B-APC 7.5 mm600 nm-1050 nm1.62 mmMolded aspheric lens
$370.04today
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PRACFCD-7.5-A-APC 7.5 mm350 nm-700 nm1.36 mmMolded aspheric lens
$370.04today
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PRADFCD-11-C-APC 11.0 mm1050 nm-1650 nm2.09 mmAchromatic doublet lens
$370.04today
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PRADFCD-11-B-APC 11.0 mm700 nm-1100 nm2.38 mmAchromatic doublet lens
$370.04today
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PRADFCD-11-A-APC 11.0 mm400 nm-700 nm2.06 mmAchromatic doublet lens
$370.04today
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PRACFCD-11-C-APC 11.0 mm1050 nm-1700 nm2.14 mmMolded aspheric lens
$370.04today
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PRACFCD-11-B-APC 11.0 mm600 nm-1050 nm2.32 mmMolded aspheric lens
$370.04today
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PRACFCD-11-A-APC 11.0 mm350 nm-700 nm2.03 mmMolded aspheric lens
$370.04today
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High-Precision Rotatable Adjustable-Focus Collimator, FC/PC interface
  • Interface: FC/PC
  • Focal Length (f): 4.5/7.5/11 mm
  • Internal lens: Achromatic Doublet / Aspheric Lens optional

The High-Precision Rotatable Adjustable-Focus Collimator provided by LBTEK features a Compact Form Factor, which simplifies Free-Space-to-Fiber Coupling (it is recommended to slightly tighten the locking screw before adjusting the focal length during coupling to reduce backlash interference). Meanwhile, the rotating precision achieves a lateral displacement of up to 0.2 mm/revolution, and is equipped with an FC/PC interface for improved Optical Fiber alignment. The Adjustbale-Focus Collimator is currently available in three coating wavelength options: 400 nm-700 nm/700 nm-1100 nm/1100 nm-1700 nm, with selectable Focal Length (f) of 4.6 mm/7.5 mm/11.0 mm. Each Adjustbale-Focus Collimator is coated with an Antireflection Coating (AR Coating) to reduce Reflectance. For detailed specifications, please refer to the parameter table or curve data. LBTEK provides a variety of custom solutions. For specific custom requirements, please contact LBTEK technical support.

Adjustbale-Focus Collimator is installed in MT-AM05S3
Product Model
Effective Focal Length
Anti-reflection coating rangee
Output beam waist diametera
Lens Type
File
Unit Price
Compare
Lead Time
PRADFCD-4.5-C-PC 4.5 mm1050 nm-1650 nm0.86 mmAchromatic doublet lens
$370.04today
Add Cart
PRADFCD-4.5-B-PC 4.5 mm700-1100 nm0.98 mmAchromatic doublet lens
$370.04today
Add Cart
PRADFCD-4.5-A-PC 4.5 mm400 - 700 nm0.84 mmAchromatic doublet lens
$370.04today
Add Cart
PRACFCD-4.5-C-PC 4.5 mm1050 nm-1700 nm0.88 mmMolded aspheric lens
$370.04today
Add Cart
PRACFCD-4.5-B-PC 4.5 mm600 nm-1050 nm0.98 mmMolded aspheric lens
$370.04today
Add Cart
PRACFCD-4.5-A-PC 4.5 mm350 nm - 700 nm0.82 mmMolded aspheric lens
$370.04today
Add Cart
PRADFCD-7.5-C-PC 7.5 mm1050 nm-1650 nm1.43 mmAchromatic doublet lens
$370.04today
Add Cart
PRADFCD-7.5-B-PC 7.5 mm700 nm-1100 nm1.63 mmAchromatic doublet lens
$370.04today
Add Cart
PRADFCD-7.5-A-PC 7.5 mm400 nm-700 nm1.41 mmAchromatic doublet lens
$370.04today
Add Cart
PRACFCD-7.5-C-PC 7.5 mm1050 nm-1700 nm1.45 mmMolded aspheric lens
$370.04today
Add Cart
PRACFCD-7.5-B-PC 7.5 mm600 nm-1050 nm1.62 mmMolded aspheric lens
$370.04today
Add Cart
PRACFCD-7.5-A-PC 7.5 mm350 nm-700 nm1.36 mmMolded aspheric lens
$370.04today
Add Cart
PRADFCD-11-C-PC 11.0 mm1050 nm-1650 nm2.09 mmAchromatic doublet lens
$370.04today
Add Cart
PRADFCD-11-B-PC 11.0 mm700 nm-1100 nm2.38 mmAchromatic doublet lens
$370.04today
Add Cart
PRADFCD-11-A-PC 11.0 mm400 nm-700 nm2.06 mmAchromatic doublet lens
$370.04today
Add Cart
PRACFCD-11-C-PC 11.0 mm1050 nm-1700 nm2.14 mmMolded aspheric lens
$370.04today
Add Cart
PRACFCD-11-B-PC 11.0 mm600 nm-1050 nm2.32 mmMolded aspheric lens
$370.04today
Add Cart
PRACFCD-11-A-PC 11.0 mm350 nm-700 nm2.03 mmMolded aspheric lens
$370.04today
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Stainless Steel Optical Mount, 2 with Locking Nut Adjusters
  • For installing collimators with a diameter of 12mm
  • 2 M4×0.2 precision adjusters with locking nuts and no knobs
  • Adjustable angle ±2.5°
  • Adjustment accuracy: 0.65°/turn
  • Collimator fixed with flexible spring plates and set screws

LBTEK stainless steel mount is used for installing Ø12 mm collimators, featuring 2 M4×0.2 precision adjusters without knobs but with locking nuts. The locking nuts are 6 mm hex nuts, adjustable with the MT-TW6 torque wrench. The collimator is secured by flexible spring plates and set screws. The 2 M4×0.2 precision adjusters without knobs but with locking nuts allow for pitch and yaw adjustment of the collimator using a hex key. The optical mount has M4 countersunk mounting holes on the side. The purchase of the LBTEK stainless steel mount includes hex socket ultra-thin head screws and a hex key.

Fixed diameter 12mm collimator

Product Model
Applicable diameter
Optical axis center height
Adjuster specifications/quantity
File
Unit Price
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Lead Time
MT-AM05S3 12 mm
$109.78today
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Collimator adapter
  • Material: 6061-T6 Aluminum Alloy
  • Smooth inner wall, secured with set screws

LBTEK is suitable for mounting cylindrical optical components with a diameter of Ø12 mm, and can be installed in adjustment mounts with SM1 threads or adjustment mounts with Ø25.4 mm smooth bore holes, as well as in coaxial systems.

Adapter components can connect cylindrical elements to optomechanical components.

Product Model
Limit hole diameter
Adapter Specifications
File
Unit Price
Compare
Lead Time
PRADFCD-X-2 12 mmSmooth installation hole
$17.41today
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PRADFCD-X-1 12 mmSM1 external thread
$17.41today
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PRADFCD-X-3 12 mmSmooth installation hole
$17.41today
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