Adjustable Focus Aspherical Fiber Coupler 400-700nm (Focal Length: 4.5mm, Waist Beam Diameter: 0.86, FC/APC)

The design uses a spring-mounted optical lens inside the mechanical parts, which is suitable for the output of a fiber-optic beam collimator and can also be used for fiber-to-fiber coupling. By rotating the outer sleeve of the collimator, the internal optical lens can move back and forth along the optical axis direction, thus adjusting the distance between the lens and the fiber end face to obtain different spot sizes.

Product features：Three anti-reflection coating aspherical lens options: 350-700nm, 650-1050nm, 1050-1620nm、 When used with compatible connectors, it can achieve diffraction-limited performance、 Alignment error during adjustment <15mrad

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Unit Price

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Part Number

NIR-CLM-400/700-4.5-0.86-FA

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General Parameters

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Dimensional Drawing

Technical Parameters

F=4.5m Adjustable Focus Aspherical Collimator
Focal Length	NMA Lens	Waist Diameter	Lens Coating Wavelength	Collimated Beam Far-Field Divergence Angle	Maximum Waist Distance	Input Fiber MFD	Fiber to Lens Distance	Connector Type	Transmittance
4.5mm	0.54	0.86	400~700nmR<0.5%	0.045°	530mm	3.5um	2.4-4.9 mm	FC/PC FC/APC	>90%
4.5mm	0.54	0.98	650~1050nmR<0.5%	0.062°	453mm	5um	2.4-4.9 mm
4.5mm	0.54	0.87	1050~1700nmR<0.5%	0.12°	194mm	10.4um	2.4-4.9 mm
F=7.5m Adjustable Focus Aspherical Collimator
Focal Length	NA Lens	Waist Diameter	Lens Coating Wavelength	Collimated Beam Far-Field Divergence Angle	Maximum Waist Distance	Input Fiber MFD	Fiber to Lens Distance	Connector Type	Transmittance
7.5mm	0.3	1.35	400-700nmR<0.5%	0.027°	1435mm	3.5um	4.2-6.8 mm	FC/PC FC/APC	>90%
7.5mm	0.3	1.6	650~1050nmR<0.5%	0.038°	1225mm	5um	4.2-6.8 mm
7.5mm	0.3	1.44	1050~1700nmR<0.5%	0.08°	521mm	10.4um	4.2-6.8 mm
F=11mm Adjustable Focus Aspherical Collimator
Focal Length	NA Lens	Waist Diameter	Lens Coating Wavelength	Collimated Beam Far-Field Divergence Angle	Maximum Waist Distance	Input Fiber MFD	Fiber to Lens Distance	Connector Type	Transmittance
11mm	0.3	1.96	400-700nmR<0.5%	0.018°	3080mm	3.5um	8.6-10.9 mm	FC/PC FC/APC	>90%
11 mm	0.3	2.35	650~1050nmR<0.5%	0.026°	2631mm	5um	8.6-10.9 mm
11 mm	0.3	2.1	1050-1700nmR<0.5%	0.055°	1115mm	10.4um	8.6-10.9 mm

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