101623X06 COHERENT | Alldatasheet

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Technical content

  • Up to 20 kW (CW)
  • High-resolution fiber adjustment
  • Fiber alignment feedback
  • Eye-safe, stand-alone
  • Certified safety electronics (PL e)
  • Welding
  • Cutting
  • Surface Treatment
  • Cladding
  • 3D Additive Manufacturing High-Power Beam Delivery – 1030 nm to 1090 nm The Fiber-to-Fiber Coupler (FFC) makes it possible to couple a laser beam from one fiber optic cable to another. This can be used for extending the range of an existing fiber cable installation, to change the beam quality by connecting a larger fiber core diameter, or to connect different mechanical fiber cable interfaces together. It can also be used to minimize down-time for laser sources with fixed output fibers that are not plug-and-play replaceable. Using the FFC it is possible to receive an exchangeable process fiber for the laser source.

Specifications FFC wc FFC ac Maximum Power (kW) 20 4.5 Wavelength (nm) 1030 to 1090 Magnification, M = ffoc/fcoll 0.6, 1.0, and 1.2 Maximum NA M = 1.0 M = 1.2 M = 0.6 0.14 0.14 0.12 0.18 0.18 0.09 Coupling Margins Min. Fiber Diameter increase (μm at x kW) M = 1.0 M = 1.2 M = 0.6 6 to 10 kW ≥50 ≥100 Single-mode to multi-mode1 Cooling Cooling Method Water Air (passive) Fiber Delivery System Fiber Interfaces QBH / QD / LLK-B (Q5) Dimensions and Weight Dimensions See page 3 See page 4 Weight (kg) 4.5 2.3 to 2.5 Electronics Supply Voltage (V DC) 24 Maximum Current2 (mA) 100 Fieldbus CANopen Certified Safety Function ISO 13849-1:2015 Category 3 PL e Environmental Conditions Humidity (% RH) <80 Operating Temperature (°C) 5 to 50 (non-condensing) Storage Temperature (°C) -25 to 70 Compliance Information RoHS Directives 2011/65/EU and 2015/863/EU REACH Directive EC no 1907/2006 Notes: 1 M = 0.6 is re commended for single-mode to multi-mode fiber coupling. With M = 0.6 the NA increase by a factor 1/0.6 which lead to a better mode-mix in the multi-mode fiber. M = 0.6 is typically not recommended for multi-mode to multi-mode fiber coupling due to the lar ge increase of NA. 2 The po wer supply source should be protected by a max. 1 A slow blow fuse. <6 kW ≥50 ≥50 >10 kW ≥100 ≥150

Fiber-to-Fiber Coupler Water-Cooled (FFC wc) Ø6.6 mm (x4) R3.3 (x4) M5 (x4) 85 mm (3.35 in.) M = 0.6, 1.0, 1.2 Ø66 mm (2.60 in.) 136 mm (5.35 in.) 45 mm (1.77 in.) 100 mm (3.94 in.) 110 mm (4.33 in.) 6 mm (0.24 in.) 19 mm (0.75 in.) 30 mm (1.18 in.) 50 mm (1.97 in.) 75 mm (2.95 in.) 72 mm (2.83 in.) 324 mm (12.76 in.) Seen from Above (without the FFC House) Seen from Below (without the FFC House) Threaded M5 (x4) Depth 10 (x2) 85 mm (3.35 in.) 75 mm (2.95 in.) aa aa c c c cc c c A bb a aa a a A b bb b b bb 75 mm (2.95 in.) 68 mm (2.68 in.) 116 mm (4.57 in.) 102 mm (4.02 in.) Ø6.6 mm (x4) R3.3 (x4) M5 (x4) 85 mm (3.35 in.) M = 0.6, 1.0, 1.2 Ø66 mm (2.60 in.) 136 mm (5.35 in.) 45 mm (1.77 in.) 100 mm (3.94 in.) 110 mm (4.33 in.) 6 mm (0.24 in.) 19 mm (0.75 in.) 30 mm (1.18 in.) 50 mm (1.97 in.) 75 mm (2.95 in.) 72 mm (2.83 in.) 324 mm (12.76 in.) Seen from Above (without the FFC House) Seen from Below (without the FFC House) Threaded M5 (x4) Depth 10 (x2) 85 mm (3.35 in.) 75 mm (2.95 in.) aa aa c c c cc c c A bb a aa a a A b bb b b bb 75 mm (2.95 in.) 68 mm (2.68 in.) 116 mm (4.57 in.) 102 mm (4.02 in.) Mounting Plate Side View Front View (design with QBH Fiber Interface) Below View (without the FFC House) Above View (without the FFC House)

Fiber-to-Fiber Coupler Air-Cooled (FFC ac) M = 0.6 M = 1.0, 1.2 114 mm (4.49 in.) 25 mm (0.98 in.) Ø62 mm (2.44 in.) Ø62 mm (2.44 in.) 50 mm (1.97 in.) 72 mm (2.83 in.) 75 mm (2.95 in.) 86 mm (3.39 in.) Seen from Below (without the FFC House) 86 mm (3.39 in.) 86 mm (3.39 in.) R3.3 (x4) 75 mm (2.95 in.) 68 mm (2.68 in.) 294 mm (11.57 in.) 86 mm (3.39 in.) 102 mm (4.02 in.) 244 mm (9.61 in.) 86 mm (3.39 in.) 102 mm (4.02 in.) 60.2 mm (2.37 in.) 92.2 mm (3.63 in.) M5 10 (x4) Side View Below View (without the FFC House) Mounting Plate Front View (design with QBH Fiber Interface)

Input Interface Output Interface M = 0.6 M = 1.0 M = 1.2 QBH- QBH 101623X06 101623X10 101623X12 QD 101623X24 101623X26 101623X28 QD- QD 103336X06 103336X10 103336X12 QBH 103336X24 103336X26 103336X28 Note: LLK-B (Q5) interface available upon request. Specifications Input Interface Output Interface M = 0.6 M = 1.0 M = 1.2 QBH- QBH 3-9022X06 3-9022X10 3-9022X12 QD 3-9191X06 3-9191X10 3-9191X12 QD- QD 3-9232X06 3-9232X10 3-9232X12 QBH 1428774 1428775 1428776 Note: LLK-B (Q5) interface available upon request. Part Numbers Fiber-to-Fiber Coupler Water-Cooled (FFC wc) Fiber-to-Fiber Coupler Air-Cooled (FFC ac) Accessory Part Number Power and Communication cable angled, 5 m 2-5053X01 Power and Communication cable angled, 10 m 2-5053X02 FFBD cable MCX (and DLD), 1500 mm 1-5135X01 Accessories

© 2025 Coherent Corp. Legal notices : coherent.com/legal For more information www.coherent.com Raman Filter Stimulated Raman Scattering (SRS) can be a major limiting factor for high power, high brightness fiber lasers. As a result, overall length of the process fiber cable can be restricted. By introducing a wavelength selective mirror between the two lenses in the Fiber-to-Fiber Coupler (FFC) it is possible to com- pletely remove unwanted Raman radiation. This is a solution patented by Coherent and that also involve the mode-stripping technology inside the Coherent Fiber Optic Cables. FFC Raman available upon request. Returned Raman light absorbed in fiber connector Raman Mirror Raman, 1110-1130 nm Fiber Laser, 1060-1080 nm