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250/400/500/740/1100µm Diameter Square-core Fiber

Square-core fiber is a specially designed, large-core laser power transmission fiber primarily used in high-power laser transmission, homogenization, imaging, spectroscopy, and other fields. Its structure consists of a square, high-purity synthetic quartz core, a fluorine-doped quartz cladding, and a coating. Typical NA values for the core and cladding are 0.12 and 0.22, respectively. Square-core fiber significantly improves coupling efficiency with semiconductor lasers and offers excellent spot homogenization and shaping capabilities, making it particularly advantageous in laser cleaning and beam shaping.

Characteristics

Excellent geometric uniformity
High damage threshold
Uniform mode field intensity distribution

Size:	8.8KM/ROLL
Availability:



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Product Description

Product Application

Laser beam combining components
Laser coupling

Beam homogenization
Laser cleaning

Product Specifications

Item	Unit	Index
Product Model	/	SCF50-12-250L	SCF100-12-500L	SCF200-12-400L	SCF400-12-740L	SCF600-12-1100L
Optical characteristics
Numerical Aperture	/	0.12±0.02	0.12±0.02	0.12±0.02	0.12±0.02	0.12±0.02
Attenuation @1064nm	dB/km	≤17.0	≤17.0	≤17.0	≤17.0	≤17.0
Refractive Index Structure	/	Step-index type
Geometric characteristics
Core Side Length	μm	50.0±3.0	100.0±5.0	200.0±6.0	400.0±8.0	600.0±10.0
Cladding Diameter	μm	250.0±5.0	500.0±10.0	400.0±10.0	740.0±10.0	1100.0±20.0
Coating Diameter	μm	400.0±10.0	630.0±10.0	540.0±10.0	910.0±10.0	1300.0±30.0
Core Material	/	Pure quartz
Inner Coating Material	1	Low-refractive index coating
Outer Coating Material	/	Acrylic resin
Mechanical properties
Screening Strength	kpsi	100	100	100	100	100

Item	Unit	Index
Product Model	/	SCF50-22-250L	SCF100-22-500L	SCF200-22-400L	SCF400-22-740L	SCF600-22-1100L
Optical characteristics
Numerical Aperture	/	0.22±0.02	0.22±0.02	0.22±0.02	0.22±0.02	0.22±0.02
Attenuation @1064nm	dB/km	≤17.0	≤17.0	≤17.0	≤17.0	≤17.0
Refractive Index Structure	/	Step-index type
Geometric characteristics
Core Side Length	μm	50.0±3.0	100.0±5.0	200.0±6.0	400.0±8.0	600.0±10.0
Cladding Diameter	μm	250.0±5.0	500.0±10.0	400.0±10.0	740.0±10.0	1100.0±20.0
Coating Diameter	μm	400.0±10.0	630.0±10.0	540.0±10.0	910.0±10.0	1300.0±30.0
Core Material	/	Pure quartz
Inner Coating Material	1	Low-refractive index coating
Outer Coating Material	/	Acrylic resin
Mechanical properties
Screening Strength	kpsi	100	100	100	100	100

Customized Information

The operating wavelength, mode field diameter, beat length, geometric dimensions, coating material,screening intensity and other indicators can be customized according to customer requirements.