Femtosecond fiber grating

Femtosecond fiber grating_FSDFocused on high-precision graphic processing of femtosecond lasers in various hard and brittle materials. Capable of real-time modulation and processing of three-dimensional vector path full stroke speed and energy. Capable of processing spot shaping, supporting three-dimensional and two-dimensional processing of material surfaces or interiors by importing any shape.

Femtosecond fiber grating_FSDconfiguration parameters

Femtosecond laser:

1) Average power: 20W/10W/6W

2) Repetition frequency: 1Hz~1MHz adjustable

3) Minimum pulse width:<300fs

4) Maximum single pulse energy: 200 μ J @ 1KHz, 1030nm (other modes are optional)

5) Center wavelength: 1030nm

6) Second harmonic output wavelength: 515nm

7) Triple frequency output wavelength: 343nm (optional)

Optical system:

1) Energy regulator: regulating range covers 0.5%~99%

2) Lighting module: Reflection Kohler lighting/Transmission Kohler lighting

3) Imaging camera: greater than 5 million pixels

4) Objective lens: 60 x oil immersion objective lens, 20 x air objective lens. (Other objective lenses are optional)

5) Optional functional modules: scanning galvanometer, spatial light modulator, focal plane automatic tracking module, two-dimensional electric slit

Multi functional worktable:

1) Three point two-dimensional leveling: single point adjustment range ≥ 5mm; single point adjustment resolution ≤ 50nm

2) Large area sample processing station: transparent glass adsorption table, supporting 4-inch sample processing

3) Fiber Bragg Grating Processing Station: Effective Processing Range, Greater than 10mm

4) Optional functional modules: fiber optic rotator, fiber optic stress monitor

High precision displacement table:

1) X/Y/Z three-axis travel: ≥ 200mm × 200mm × 20mm

2) X/Y/Z axis positioning accuracy: ≤± 300nm

3) X/Y/Z axis bidirectional repeatability accuracy: ≤± 100nm

4) Maximum displacement velocity: ≥ 100mm/s (X/Y axis), ≥ 50mm/s (Z axis)

Structural framework:

1) Marble Longmen Structure

2) Passive air flotation vibration isolation

Automatic fiber winding machine:

1) Roll length:>5km

2) Fiber winding speed: 0.5m/s

3) Tension control accuracy:<0.5g

4) Meter accuracy:<2 ‰

5) Automatic alignment accuracy:<1 μ m

2. Processing parameters:

Surface processing feature line width: ＜ 200nm

Waveguide processing loss:<0.5dB/cm

Fiber Bragg Grating Processing Reflectance: Adjustable from 0.001% to 90%

Fiber Bragg Grating Processing Edge Mode Suppression Ratio: ＞ 18dB

Typical 3db bandwidth for fiber Bragg grating processing: 0.2nm

Wavelength deviation of fiber Bragg grating machining center: ≤± 0.3nm