Part #: EFC25-X-XXX-XX
At the input and output fiber end face in medium power lasers (100’s of watts), the energy density can be very high. So if the laser radiation transmits to the fiber end face, there is a high risk of burning or degrading the fiber.
An end cap on the end face of fiber is a good solution for this issue – an 8mm diameter end cap spliced to the fiber can greatly increase the diameter of the beam spot, which is a very effective method to lower the power density.
On the surface of the end cap, a high damage threshold AR coating is applied, while on the other side of the fiber, a high efficient cladding power stripper (CPS) is added. Most importantly, it’s epoxy free.
We have very high power passive fiber optic devices such as couplers – please ask.
Specifications
| OPTICAL PARAMETERS | SPECIFICATIONS |
| Operating wavelength range | 800-1100nm |
| Cladding power stripper | Stripping efficiency>20dB, Signal IL<0.1dB |
| AR coating | Reflection rate at all wavelength range<0.2% |
| Fiber type | Beam delivery fiber such as 50/360, 100/360, 200/240 etc. |
| Fiber & end cap concentricity | ≤20um |
| Beam angular deviation | TBD |
| MECHANICAL PARAMETERS | |
| Single/Double connectors | 0.2mm bare fiber (onl in single connector version), or double connectors |
| Connector type | F-SMA (O.D.9mm, length:115mm, weight:11g) |
| Connector nut thread | 1/4-36 UNS 2B |
| Cable length | 1-10m with 3mm yellow jacket (can be customized) |
Configuration description (Patent applied)
Step 1. Make a cladding power stripper on fiber cladding, tested with 60W stripping power.
Step 2. Splice 2mm end cap with fiber, proof test <10N.
Step 3. Splice a quartz tube with end face, to pretect CPS area.
Step 4. Standard SMA assemble process.
Schematics
Remarks:
– The thicker a fiber cladding diameter is, the higher pull force it can bear.
Further Info
| FEATURES | – Fiber spliced to 2mm end cap, passed proof test & vibration test. – A cladding power stripper (CPS) is made near the end cap, featured in high stripping efficiency, low loss in fiber core, epoxy free and cool fiber. – High demage threhold AR coating on the surface of end cap can decrease transmission loss. – A quartz tube is added to isolate stripping area with cooling water, which can also protect it from polluting by water. – Complied with SMAQ. – RoHS complied.  |
| APPLICATIONS | Output with Fiber Laser | Solid state Laser and fiber coupled diode Laser |
| REGION | All |
Ordering Info
Part # format: EFC25-A-B-C
| A | Configuration S = Single head D = Double heads |
| B | Fiber code Please find in fiber code list below |
| C | Fiber length 01 = 1m 02 = 2m 05 = 5m 10 = 10m |
PN Example: EFC25-S-B305-05
| Fiber type | Code |
| 20/400 0.22NA | B220 |
| 50/360 0.22NA | B305 |
| 100/360 0.22NA | B310 |
| 200/360 0.22NA | B320 |
