Basic Info.
Product Description
1. Introduction
Polarization-maintaining photonic crystal fiber can be used in fiber optic gyroscope and polarization related devices. It has high radiation resistance, high birefringence effect and excellent temperature stability.
The fiber has a large refractive index step between the air and the glass, which produces strong birefringence, making its beat length. Compared with the traditional polarization-maintaining fiber, the polarization-maintaining photonic crystal fiber can reduce the coupling between different polarization states caused by bending and maintain a large extinction ratio.
2. Fiber Geometry
3. Technical parameters
Features | Unit | Product indicator | ||
Product type | / | SC63-125-U25 | SC78-125-U25 | SC85-125-U25 |
| Optical properties | ||||
Working wavelength | μm | 1550 | 1550 | 1550 |
Mode field diameter | μm | 4.1±1.0 | 4.1±1.0 | 4.1±1.0 |
Attenuation | dB/km | ≤2.0 | ≤2.0 | ≤2.0 |
Beat length | mm | ≤5.0 | ≤3.0 | ≤3.0 |
Typical crosstalk @1550nm (100m) | dB | ≤-15 | ≤-30 | ≤-30 |
Temperature circulation -45ºC~85ºC crosstalk fluctuation @1550nm (1Km) | dB | ≤2.0 | ≤3.0 | ≤3.0 |
| Geometric properties | ||||
Cladding diameter | μm | 100.0±1.0 | 125.0±1.0 | 80.0±1.0 |
Coating diameter | μm | 135.0±5.0 | 245.0±5.0 | 165.0±5.0 |
Cladding out-of-roundness | / | ≤1.0% | ≤1.0% | ≤1.0% |
4. Advantages
Good radiation resistanceThe beat length is adjustable
High birefringence effect
Good temperature performance
5. Application
Fiber optic gyroscope
Polarization device
Laser
6. Customization Information
Polarization-maintaining photonic crystal fibers with specific beat lengths and bands can be customizedPolarization-maintaining photonic crystal fibers with specific cladding diameter and duty cycle can be customized.Notes
In order to prevent moisture and dust from entering the hollow microtubule to affect the later performance, both ends of the polarization-maintaining photonic crystal fiber must be sealed.
