Adjustable Fiber Optic Collimators

Our adjustable fiber optic collimators allow the user to vary the beam for best collimation at the wavelength and the distance of interest. The high precision optics deliver a wavefront error <λ/10 and a full beam divergence of <0.5 mrad.

Adjustable focus with fine 80 thread per inch pitch
Clean Gaussian beams at any distance
VIS, VIS-NIR or NIR broadband AR coatings
Low insertion loss and low back-reflection

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Showing 10 of 11 total products

Compatibility:

Description	Compatibility	Operating Wavelength	Fiber Connector	Beam Diameter (1/e²)	Clear Aperture	Avail.	Price
F-H10-IR-APCFiber-optic Collimator, Adjustable, 1000 - 1700 nm	UNIVERSAL	1000-1700 nm	FC/APC	5.5 mm	10 mm	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$2,070
F-H10-IR-FCFiber-optic Collimator, Adjustable, 1000 - 1700 nm, FC/PC	UNIVERSAL	1000-1700 nm	FC/PC	5.5 mm	10 mm	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$1,485
F-H10-NIR-APCFiber-optic Collimator, Adjustable, 600 - 1000 nm, FC/APC	UNIVERSAL	600-1000 nm	FC/APC	5.5 mm	10 mm	In Stock	$1,590
F-H10-NIR-FCFiber-optic Collimator, Adjustable, 600 - 1000 nm, FC/PC	UNIVERSAL	600-1000 nm	FC/PC	5.5 mm	10 mm	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$1,490
F-H10-VIS-FCFiber-optic Collimator, Adjustable, 375 - 600 nm, FC/PC	UNIVERSAL	375 - 600 nm	FC/PC	5.5 mm	10 mm	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$1,390
F-H5-IR-APCFiber-optic Collimator, Adjustable, 1000-1700 nm, 6 mm aperture, FC/APC	UNIVERSAL	1000-1700 nm	FC/APC	2.0 mm	6 mm	5 Weeks FREE 2-day shipping on thousands of products on Newport.com Learn More	$1,580
F-H5-IR-FCFiber-optic Collimator, Adjustable, 1000-1700 nm, 6 mm aperture, FC/PC	UNIVERSAL	1000-1700 nm	FC/PC	2.0 mm	6 mm	5 Weeks	$1,165
F-H5-NIR-APCFiber-optic Collimator, Adjustable, 600-1000 nm, 6 mm aperture, FC/APC	UNIVERSAL	600-1000 nm	FC/APC	2.0 mm	6 mm	In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$1,580
F-H5-NIR-FCFiber-optic Collimator, Adjustable, 600-1000 nm, 6 mm Aperture, FC/PC	UNIVERSAL	600-1000 nm	FC/PC	2.0 mm	6 mm	Contact Us	$1,110
F-H5-VIS-APCFiber-optic Collimator, Adjustable, 375-600 nm, 6 mm Aperture, FC/APC	UNIVERSAL	375 - 600 nm	FC/APC	2.0 mm	6 mm	5 Weeks	$1,580

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Specifications

Fiber Type
Singlemode
Maximum Insertion Loss
0.25 dB
Operating Humidity
85%
Numeric Aperture
0.13
Diameter
F-H10: 19.05 mm
F-H5: 12.7 mm

Polarization Dependent Loss, Maximum
0.03 @ 1550 nm
Polarization Dependent Loss, Typical
0.01 @ 1550 nm
Beam Divergence, Half Angle
F-H5: <0.5 mrad
F-H10: <0.25 mrad
Operating Temperature
-20 to 60° C
Power Input Range
Up to 25 W

Features

Designed for Singlemode and PM Applications

These adjustable collimators are designed specifically for singlemode and polarization maintaining (PM) fiber applications which need to generate a clean Gaussian Beam at any distance. The clear aperture of the F-H10 and F-H5 is 10 mm and 6 mm, respectively, and the collimators are offered with FC or FC/APC receptacles to accept any singlemode or PM fiber.

Three Coating Ranges Offer User Large Spectral Range

Our broadband coatings are designed to cover wavelengths from 400 to 1700 nm so that users may select the best option for their application. Visible coating ranges are 400-600 or 350-600 nm, NIR coatings cover 600-1000 nm, and IR coatings cover 1000-1700 nm.

Compatible Mounts

These adjustable fiber optic collimators can be mounted in kinematic V-groove mount or fixed V-block mount. F-H10 products can also be post mounted with fixed position mount.

Applications

These collimators are designed for long distance projection applications and are ideal for:

Free space communications
Alignment of very large objects
Interferometry
Confocal microscopy
Applications requiring low wavefront error

Numerical Aperture Calculation

The numerical aperture of the fiber in use determines the output beam size. Here, an NA of 0.13 is used to measure beam size. To estimate the output beam size for fibers having a different NA, use the following formula:
Beam Size_new = Beam Size_old x (NA_new/ NA_old)

F-H10 example:
= (5.5 mm) x (NA_new/ 0.13)
= (42.3 mm) x NA_new

Since the clear aperture of the F-H10 is 10mm, NA of 0.24 is the largest value that can be used for this collimator without clipping the beam.

F-H5 example:
= (2.0 mm) x (NA_new / 0.13)
= (15.4 mm) x NA_new

Since the clear aperture of the F-H5 is 6 mm, NA of 0.39 is the largest value that can be used for this collimator without clipping the beam.