Grin Lens

Micro Optics >>> Grin Lens

GRadient INdex lens or GRIN lens is used to focus and collimate light sources.  It is widely used in both active and passive fiber-optics components, MEMs and imaging system.  

Application:

  • WDM

  • Collimators

  • Optical Switch

  • Attenuators

  • Fiber-to-optical coupling

  • Laser-to-fiber coupling

 

 

Optical Specifications

Transmittance 89% minimum (uncoated)
Maximum Pitch 0.5P
Polarization Reservation 0.99 (no stress)
Lens Effective Diameter 60-70% typical
Diameter Tolerance +0.005/-0.010mm
Length (Z) Tolerance  2.5%
Polishing Tolerance  0/-0.04mm
End Facet Perpendicularity 6mrad
Thermal Expansion Coefficient 1010-6/C
Maximum Temperature 350C

 

Physical Specifications

Diameter Tolerance +0.005/-0.010mm
Length (Z) Tolerance  2.5%
Polishing Tolerance  0/-0.04mm
End Facet Perpendicularity 6mrad
Ellipticy  5mm
Material Proprietary optical glass
Thermal Expansion Coefficient 1010-6/C
Maximum Temperature 350C


 

Sample Specifications

Product Number RGR-18-023-1550-8D-AR2
Length (Z) Tolerance  2.5%
Diameter  1.8mm +0.005/-0.005mm
Length 4.43mm +0.01/-0.01mm
Pitch  0.23P
Right Angle 90 +/- 20
8 Degree Wedge 8 +/- 20
Coating R<0.15%@1550nm
Gradient Constant A: 0.3262
Refractive Index @ Center N0: 1.5910
Insertion Loss: 0.15dB

Gold plated/coated C-lens

Red Optronics supplies Grin Lens with gold coating.  

 

Toll Free(U.S.) 888.309.5061 Fax 650.618.2057

   

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