Ondax光学元件
Ondax陷波滤光片不同于常见的薄膜滤光片，而是通过全息曝光技术制成的布拉格体光栅型滤光片，该滤光片对激光谱线的衰减能高达99.99%（OD4），且光谱的过渡带宽小于10cm-1。因此，Ondax低波数拉曼系统可以对瑞利散射达到OD8的抑制，同时收集低于10cm-1的正/反斯托克斯的信号。
该系统可于常用的光谱仪连用，目前可得到的拉曼波长主要有：488nm，514nm，532nm，633nm，785nm，808nm，976nm, 和1064nm。也可以根据客户要求定制中心波长。
滤光元件
特点
波长范围
直径
有效直径
SureBlockTM
Notch Filters
- Optical Density > 4
- Transition width < 10 cm-1
- Angle tunable center wavelength
- Environmentally stable operation
- No degradation over time
- Requires compatible wavelength stabilized and collimated, ASE-free laser for optimal performance
488nm, 514nm, 532nm, 633nm, 785nm, 808nm, 976nm, 1064nm
25.4mm
9mm
NoiseBlockTM 90/10
Beamsplitter Filters
- Diffraction Efficiency > 90%
- Bandwidth < 10 cm-1
- Operating angle 8-12 degrees
- Angle tunable center wavelength
- Environmentally stable operation
- No degradation over time
488nm, 514nm, 532nm, 633nm, 785nm, 808nm, 976nm, 1064nm
25.4mm
9mm
NoiseBlock
ASE Filters
- Diffraction Efficiency > 90% (~70% for 405 nm)
- Bandwidth < 10 cm-1
- Operating angle 8-12 degrees
- Angle tunable center wavelength
- Environmentally stable operation
- No degradation over time
405nm, 488nm, 514nm, 532nm, 633nm, 785nm, 808nm, 976nm, 1064nm
12.7mm
4.5mm
滤光组件
特点
波长范围
尺寸
SureBlock XLF
filter module
- Includes 2 pre-aligned SureBlock notch filters
- Free space or fiber optic input and output options
- Bandwidth < 10 cm-1
- Spatial filtering reduces collected Rayleigh scatter
- Angle tunable center wavelength
- Environmentally stable operation
- No degradation over time
488nm, 514nm, 532nm, 633nm, 785nm, 808nm, 976nm, 1064nm
75mm x 182mm x 72mm
CleanLineTM-FS
ASE clean-up
- Compact, pre-aligned package
- Integrated alignment targets
- Built-in wavelength fine tuning adjustment
- ASE suppression – better than –80 dB below laser line
- 0.1 nm bandwidth
- Temperature stability 10 pm/°C
- High transmission throughput
405nm, 532nm, 633nm, 785nm
30mm x 73mm x 37mm
CleanLine-LM
laser module
- Compact, pre-aligned package incorporates laser, isolator and CleanLine-FS platform
- Free space, collimated output beam
- Ideal for use with SureBlock XLF or notch filters
405nm, 633nm, 785nm
219mm x 77mm x 60mm