Angle polished fiber
Angle polished fiber
Angle polished fiber-Side-emitting fiber lens
Angle polished fiber-Side-emitting fiber lens

| No. | Parameter Name | Specification Range | Typical Value | Tolerance |
| 1 | Fiber Type | SM/MM/PM | SM/MM/PM | N/A |
| 2 | Fiber Length (L) | Customer specified | PM: 1m, SME28E: 1.5m | N/A |
| 3 | Fiber Outer Diameter (D1) | 165μm–900μm | 165μm / 250μm / 320μm | N/A |
| 4 | Bare Fiber Outer Diameter (D2) | 80μm–600μm | 80μm / 125μm / 220μm | N/A |
| 5 | Angle of Oblique Surface (θ) | 30°–50° | 45° / 42° | Typical: ±1° |
| 6 | Stripping Length (SL) | 10mm / customized | 10mm | ±0.5mm |
| 7 | Connector Key Orientation (for PM fiber) | Aligned with KEY / customized | N/A | ±5° |
| 8 | Oblique Surface Key Orientation (for PM fiber) | High-low point aligned / lowest point aligned | N/A | ±5° |
| 9 | Connector (Optional) | FC/PC; FC/APC / customized | FC/APC | N/A |
| 10 | Protective Tube (Optional) | 900μm various color tubes | 900μm white tube | N/A |
| 11 | Coating (Optional) | Coating thickness: 3–4μm | N/A | N/A |
Characteristics:
They are mainly divided into two categories: one type features an angled surface between 6° and 10.9°, which is used to prevent reflected light from the fiber surface from returning along the optical path and causing interference or damage; the other type has a steeper angled surface between 40° and 50°, or even greater. This type of angled fiber lens can alter the optical path or induce large-angle total internal reflection, and can also enlarge the light-receiving area of the fiber, allowing more light to enter the fiber.
Applications:
These lenses are used in fields such as fiber lasers, fiber-optic communications, traditional optics, and fiber-optic sensing.

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