GRIN lenses are used to focus and collimate light within a variety of fiber optic components. GRIN lenses , short gradient index,focus light through a precisely controlled radial varition of the lens material index of refraction from the optical axis to the edge of the lens. This allows a GRIN lens with flat or angle polished surface to collimate light emittied from an optical liber or to focus an incident beam into an optical liber. End faces can be provided with an anti-reflection coating to avoid unwanted back reflection.
GRIN lenses can be used for WDM Collimater, Optical Switch,Attenuators and Fiber to fIber couping systems.
Specification
Dia.:0.5mm,1.0mm,1.8mm, can be customer-made size
Pitch:0.22p,0.23p,0.248p
wavelength: 808nm ,1310nm,1550nm,1250-1650nm
Angle: 2°,6°,8°,10°
Coating:AR coating is on request.
Surface Quality
Pinholes/ParticlesDefects greater than 30μm in diameter are not allowed.Defects smaller than 10μm in diameter are allowed.Up to three defects with diameter between 10μm~30μmare allowed.ScratchesScratches wider than 5μm are not allowed.Scratches narrower than 2μm are allowed.Up to three scratches with 5μm max. width and 200μm max length are allowed.Chips
Chips are not allowed within the concentric area of 90% of the lens diameter.End Face Planeness
1/4λ(λ=6328nm)
Main Specification
Transmittance>89% @380nm~2000nm Wavelength
Lens Effective Diameter:60%-70%
Index Gradient Constant:0.327
Numerical Aperture:0.46RangeRefractive Index:1.3138 at 580nm
Tolerance
Diameter Tolerance:0.005/-0.010 mm
Length Tolerance:0/-0.04 mm
End Face Angle:D°±0.3°
Ellipticity:3um
End Face Perpendicularity:6mrad
Temperature:-25~75ºC
Humidity:65%―85% HRThermal Expansion Coefficient:10X10-6/ºC
Our Factory
Testing
Exhibition Show
Sunday Optics attended Laser World in Laser World in Munich,Frankfult Exhibition,SPIE every year.
Related Production Line
sunday optics also manufacture high precison prism, powell lens, collimator lens, glass filter, and mirror.
FAQ:
1. Are you manufacturure? can we see your factory?
Yes.
2. Do you have test report?
Yes, we offer full size test report, about size, focal length, flatness, coating curve, coating plate.
3.What is your production quantity everymonth?
It depands on the lens size and precison.
4.What is the Minimum quantity?
1pc
5.What is your delivery time?
samples: 10-20days
6.How should we do if the quality is not good?
Repair or return money.
Audited Supplier 
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