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Connet high-power double-clad fiber grating pair (also called Fiber Laser Mirror fiber laser cavity mirror) uses a classic ultraviolet laser combined phase mask writing process, designed for high-power continuous and pulsed fiber lasers, suitable for single-mode fiber To the large mode field (LMA) fiber, the power capacity can reach more than 3kW.

The high-power double-clad fiber grating pair consists of a high-reflective grating (HR: High Reflector) and a low-reflective grating (LR: Low Reflector), where the low-reflective grating is used to select the operating wavelength of the fiber laser and is also called the output coupler (OC: Output Coupler), using chirped phase mask technology, Connet can provide different users with various bandwidths and accurately matched high and low inversion gratings.

With the deep understanding and rich experience of double-clad fiber and fiber laser technology, the high-power double-clad fiber grating pair provided by Connet has the following outstanding features:

• Extremely low temperature rise slope efficiency, suitable for high power operation

• Optimized design of low-reflective grating to reduce reverse light leakage of high-reflective grating

• Excellent reflection / transmission line shape, raising the threshold of stimulated Raman scattering (SRS)

For different application requirements, Connet can provide high-power encapsulated and re-coated high-power double-clad fiber gratings.

Connet Chirped Fiber Bragg Grating (CFBG) for fiber laser mirror application, the available operating wavelengths include 1.0um, 1.5um and 2.0um bands.

1.5um CFBG Fiber Laser Mirror

1.5um High Power Chirped FBG for Fiber Laser