635nm FC/PC Fixed Fiber Collimator with NA 0.37 and Focal Length of 10.1mm.

Idealphotonics' fiber collimators are pre-aligned and designed to collimate light emerging from FC/APC connector fibers, with the added feature of minimizing diffraction. These fiber collimators have no moving parts, making them compact and easy to integrate into existing setups. Due to the chromatic aberration caused by the aspherical lens, the effective focal length (EFL) is wavelength-dependent. The design wavelength corresponds to the wavelength that aligns with the ideal divergence angle of the beam. Collimators at certain design wavelengths may have different collimated beam diameters. When connected to specific single-mode fiber jumpers, they can collimate light at the design wavelength. Additionally, the aspherical lenses are coated with anti-reflection coatings on both sides to minimize surface reflection (please refer to the anti-reflection coating curve label). For certain applications, these collimators can also be used at other wavelengths within the anti-reflection coating's wavelength range. Please refer to the theoretical divergence angle curves for each collimator to determine if it suits your application. These collimators are stable within a temperature range from -40°C to 93°C. Please note that these collimators are not suitable for use in a vacuum. For custom alignment wavelengths, operating temperatures, or vacuum compatibility, please contact us for customization.

Product features：Fiber collimator with FC/APC connector (2.2 mm wide key) for single-mode jumpers、 Aligns wavelengths from 405 nm to 4.55 µm、 Collimated beam diameter ranges from 0.63 mm to 4.05 mm depending on the wavelength、 Each collimator is factory-aligned、 Simplifies fiber coupling in detection systems、 Non-magnetic stainless steel housing is compatible with both narrow-key and wide-key FC/APC connectors

Application area：Fiber amplifiers、 WDM & DWDM systems、 Fiber optic equipment、 Fiber lasers

Unit Price

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Part Number

NIR-CLM-W635-N3E10-FP

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General Parameters

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Dimensional Drawing

Parameters

Parameter	Unit	Value	Remarks
Focal length at design wavelength (nm)	nm	1150.00	Other wavelengths can be customized
Insertion loss	dB	≤0.2	1550nm,30mw,DFB
Calibration wavelength	nm	1550.00	@ 25°C
Calibration wavelength	nm	1310.00	@ 25°C
Effective aperture (CA)	mm	5.5	Full temperature range: -40 to +75°C
Effective focal length (EFL)	mm	11.0
Protective cover diameter	mm	11.00
Protective cover length	mm	17.1
Numerical aperture (NA)	N/A	0.25	Other fiber types available
Coating		BBAR (1050-1600nm)
Connector		FC
Return loss (in/out)	dB	> 60/55dB
Maximum operating power	W	2
Operating temperature	℃	-5-70℃
Storage temperature	℃	-40-85℃
Substrate	D-ZK3
Refractive index (nd)	1.586
EFL / Aperture ratio		2.00
Wavelength range		1050 - 1600
RoHS:		Compliant
Test light source		1550nm Benchtop light source
Package dimensions(mm)		As shown in diagram