|
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.
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Optical
Specifications
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|
| 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 |
10×10-6/°C |
| Maximum Temperature |
£
350°C |
|
|
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 |
10×10-6/°C |
| Maximum Temperature |
£
350°C |
|
|
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 ÖA: |
0.3262 |
| Refractive
Index @ Center N0: |
1.5910 |
| Insertion
Loss: |
£0.15dB |
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Gold plated/coated C-lens
Red Optronics supplies Grin Lens with gold
coating.
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