Grin Lens Fiber Collimator 1550nm 2M Single Fiber SMF 3.2mm OD, 5mm WD working distance golden tube packaged Pigtail type

Fibermart offers a complete line of fiber collimators and focusers with lowbackreflection, designed to collimate or focus light exiting a fiber to adesired beam diameter or spot size. By utilizing diffraction limited lenses,spot sizes of a few microns can be achieved. These devices can be usedwith laser diodes, photodiodes, acousto-optic modulators and other fiberoptic devices.

Collimators and focusers can be used as matched pairs tocouple light in and out of optical devices. This makes them ideal for fiberpackaging of devices. For collimators, the collimated beam diameter (BD)and full divergenceangle (DA)depends upon the focal length of the lens (f), the core diameter(a), and the fiber numerical aperture (NA).The collimated beamcharacteristics are given by:BD(mm) = 2 x f(mm) x NADA(mrad) = a(ȝm) / f(mm)When using the above formulae, please exercise caution.

Differentdefinitions for the numerical aperture are used by fiber manufacturers. Forinstance, definitions based on 50 percent, 13.5 percent (1/e2), 5 percent,and 1 percent intensity levels are all used. FM standard tables list the definitions used for each fiber type, aswell as conversion factors to convert values to 1/e2 values. Fibermart uses1/e2 definitions for its calculations of the beam diameter wherever possible.

FEATURES:

•High power handling

•Rugged and compact design

•Low insertion loss•Low backreflection

•Wide wavelength range

•Wide range of beam diameters•GRIN, aspheric, achromatic, plano-convex, andbiconvex lenses available•Singlemode, multimode, and polarization maintainingFiber versions•Diffraction limited optics

•LOW COST!

APPLICATIONS:

•Fiber optic device packaging, including WDM’sSplitters, and integrated optics

•Source to fiber coupling•Fiber to detector coupling

•OCT systems

SPECIFICATIONS:

•Wavelength:180nm - 2000nm •Backreflection:-35, -40, -50, and -60dB

•Polarization Extinction ratios:20, 25, or 30dB

•Beam Diameters:0.2 to 22mm•Spot size:As small as <5 microns

•Wavefront distortion: O4 to O10

•Insertion Loss:d0.6 dB for 60mm separationd0.3 dB for 10mm separation

Specifications

Type	Single Fiber	Dual Fiber
Grade	Premium	Premium
Wavelength (nm)	1310+30, 1550+30, 1310/1550+30, 980/1550+30 or custom wavelength
Insertion Loss (Typ.) (dB)	0.17	0.2
Insertion Loss (Max.) (dB)	0.2	0.28
Return Loss (Typ.)	65	65
Beam Diameter (mm)	<0.45 (1.8mm Lens) <0.35 (1.0mm Lens)	<0.45 (1.8mm Lens) <0.35 (1.0mm Lens)
Operating Temperature( ° C )	-20 ~+75
Storage Temperature ( ° C )	-40 ~+85
Dimensions (mm)	1.8(OD) Lens(Standard)	2.40x10 or 3.2x10 gold plated SS tube or 2.78x10 glass tube or custom size
1.0(OD) Lens(Mini-size)	1.40x9 or 2.8x10 gold plated SS tube 2.0x9 glass tube or custom size
Fiber Type	250um bare fiber or 900um tight buffer
At 10mm working distance and single wavelength. (Dual wavelength IL will increase by 0.1 dB)
At <1mm reflection working distance (RWD) and single wavelength.