WaveSource SMA fiber cables are manufactured using "air-gap technology" with free-standing fiber tips that are not in contact with any adhesives.
Coupling high power in glued standard SMA connectors leads to their rapid demise. The silica fiber is transparent to pump laser, can resist higher temperature, and has a much higher damage threshold comparing to adhesive. It can receive or emit higher laser power density without running into the risk of damage.
An alternative solution was sought after by some suppliers to allow the optical fiber to protrude out of the ferrule. However, the protruding fibers are easily damaged during handling and use. In addition if the ferrule has a slight misalignment with the entering laser beam, the adhesive will be evaporated by the high power laser that will initiate a catastrophic damage chain.
Our high-power SMA cables offer a viable alternative to the previous approaches. The optical fiber end faces do not protrude out of the connector end faces, the fibers are free standing and surrounded only by air. This ensures the coupling of high laser power without damage.
Adhesives are not used in the front part of the connector. In addition, metallic parts provide for the rapid conduction of heat.
SMA ferrule image by 100x microscope
Fiber tip image by 400x microscope
Parameter | Unit | Specification | |||
---|---|---|---|---|---|
Connector Type | SMA 905 on both fiber ends with air-gapped fiber tip technology without fiber protruding | ||||
Fiber | Low OH fiber | ||||
Ferrule diameter | mm | 3.167 - 3.172 | |||
Outer diameter | mm | 9.5 | |||
Fiber core diameter | mm | 200 | 400 | 600 | 800 |
Cladding diameter | mm | 220 | 480 | 720 | 880 |
Cable length | m | Per customer specify ± 0.1 | |||
Fiber numerical aperture | 0.22 ± 0.02 | ||||
Fiber protective jacket | PVC or stainless armed | ||||
Cable jacket diameter | mm | 3 | |||
Centricity | mm | <6 | |||
Long term bending radius | mm | 44 | 96 | 144 | 176 |
Short term bending radius | mm | 22 | 48 | 72 | 88 |
Damage threshold | W | 50 @ 980nm and 808nm | |||
kW/cm2 | 50 @ 980nm and 808nm | ||||
Operating temperature | C | -50 -- 130 |