SLC 70W and 100W Fiber Laser Isolators

Product Name : SLC 70W and 100W Fiber Laser Isolators

Description :

EOT's 70 W and 100 W model SLC Fiber Laser Isolators have been specifically designed for pulsed Yb fiber lasers used in marking and engraving applications.

Marking and engraving of highly reflective metals can result in large levels of back reflection, creating the potential for non-optimal performance of the laser or even damage to the laser. This can result in unacceptable marking quality and significant down time.

Utilizing high damage threshold optics, these isolators provide for high transmission of light in the forward direction and strong attenuation of light traveling in the reverse direction.

Designed specifically for harsh, industrial environments, an integrated beam expanding telescope assures excellent beam-pointing stability and beam quality, which is required to assure high quality marking and engraving.

● High throughput
● Minimized return loss
● Rugged, environmentally ardened assembly
● Minimal beam distortion
● Proper steering and heat sinking of backward traveling light
● Protective armor cabling is standard
● High average power for faster processing speeds

● Marking
● Engraving
● Welding
● Laser Cleaning

More detail products information please contact with our services center. E-mail:


Model 70 W* 100 W*
Fiber Types a Standard fiber length is 3 m, protective Teflon tubing length is 2.15 m in a 2 m armor cable jacket. Standard fiber length is 3 m, protective Teflon tubing length is 2.15 m in a 2 m armor cable jacket.
Maximum Incident Average Power 70 W 100 W
Center Wavelength 1065 nm ± 15 nm 1065 nm ± 15 nm
M² Degradation <10% <10%
Standard Output Beam Diameter (1/e²) b 3 mm, 5 mm, 7.5 mm, 10 mm 3 mm, 5 mm, 7.5 mm, 10 mm
Insertion Loss of light through fiber core c <0.5 dB <0.5 dB
Isolation at 10 °C to 50 °C >20 dB >20 dB
Isolation at 30 °C >27 dB >27 dB
Return Loss <-50 dB <-50 dB
Reverse Power Handling d 77 W for 90 s max. 77 W for 90 s max.
Maximum Pulse Energy 1 mJ 1 mJ
Peak Power 20 kW 20 kW
Operating Temperature 10 °C to 50 °C 10 °C to 50 °C
Storage Temperature -10 °C to 70 °C -10 °C to 70 °C
Storage Humidity, non-condensing 10% to 90% 10% to 90%
a Customers should contact EOT regarding other fiber requirements.
b Unless otherwise specified by customer
c Insertion loss of light through fiber cladding is not included in the insertion loss specification.
d Case temperature ≤50 °C
NOTE 1: It is recommended that the isolator be attached to the laser enclosure using a compression fitting that secures only the outer, metal reinforced jacket. The inner PTFE tube is meant as an abrasion barrier for the optical fiber and should be allowed to move freely with the fiber.
NOTE 2 : Product specifications are subject to change. All products are RoHS compliant.