High Power Energy Laser Germanium Doped Passive Matching Quartz Optical Fiber

• Application: Communication, Sensor, Medicine, Probe, Light Guide
• Type: Multi-mode Fiber
• Connection Structure: Customized
• Material Shape: Round Wire
• Allowed Lateral Pressure: >1000(N/100mm)
• Allowed Tensile Strength: 100kpsi or Customize
• Model NO.: germanium doped
• Core: Single Core
• Certification: RoHS, CE, ISO9001
• Brand: 3V-Tech
• Sheath Material: Customized
• Transport Package: Standard
• Specification: germanium doped
• Trademark: 3V-TECH
• Origin: China
• Production Capacity: 50, 000meter/Month

Product Description

1. Introduction

For the series of passive matching fibers manufactured by 3V TECHNOLOGY, their core is made of germanium doped quartz material and optical cladding is made of high purity quartz material. These materials are made into corresponding passive matching fiber products through precise geometric design and process control. This series of optical fibers are used to match rare earth-doped active fibers with low welding loss and good stability of laser output. They are widely used in industrial processing, scientific research, medical treatment, national defense and other fields, and can fully meet the application needs of all kinds of fiber laser users.

 

2. Fiber Geometry

3. Technical parameters

Features	Unit	Product Indicator
Fiber name	/	GDF-10/125-D	GDF-14/250-D	GDF-20/400-D	GDF-25/125-D	GDF-25/400-D	GDF-30/250-D	GDF-50/250-D	GDF-50/400-D
Optical properties
Numerical aperture of core	/	0.075±0.005	0.070±0.005	0.065±0.005	0.100±0.005	0.065±0.005	0.065±0.005	0.110±0.005	0.120±0.005
Numerical aperture of cladding layer	/	≥0.46	≥0.46	≥0.46	≥0.46	≥0.46	≥0.46	≥0.46	≥0.46
Core attenuation @1200nm	dB/k	≤20.0	≤20.0	≤20.0	≤20.0	≤20.0	≤20.0	≤20.0	≤20.0
Cladding layer loss @1095nm	dB/k	≤15.0	≤15.0	≤15.0	≤15.0	≤15.0	≤15.0	≤15.0	≤15.0
Geometric properties
Core diameter	μm	10.0±1.0	14.0±1.0	20.0±1.5	25.0±1.5	25.0±1.5	30.0±2.0	50.0±5.0	50.0±5.0
Cladding diameter	μm	125.0±1.0	250.0±3.0	400.0±5.0	125.0±1.0	400.0±5.0	250.0±3.0	250.0±3.0	400.0±5.0
Coating diameter	μm	245.0±10.0	400.0±15.0	550.0±20.0	245.0±10.0	550.0±20.0	400.0±15.0	400.0±15.0	550.0±15.0
Core-cladding concentricity	μm	≤2.0	≤2.0	≤2.0	≤2.0	≤2.0	≤2.0	≤2.0	≤2.0
Coating material	/	Low refractive index coating	Low refractive index coating	Low refractive index coating	Low refractive index coating	Low refractive index coating	Low refractive index coating	Low refractive index coating	Low refractive index coating
Mechanical properties
Screening tension	kpsi	100	100	100	100	100	100	100	100

 

4. Advantages

Good geometric uniformity
Low numerical aperture and large mode field area
Long-term stability
Lower welding loss

5. Application

Pulsed and CW fiber lasers
Optic fiber amplifier
Material processing, scientific research and medical treatment
Output tail fiber

6. Customization Information

Passive matching fiber with special core size, outer diameter size and numerical aperture can be customized
The corresponding size of single-clad passive matching fiber can be customized