Mega-9
Advanced optical narrow bandpass
filter and beam splitter cubes
425nm narrow bandpass filter,FWHM:8nm
Price:$100(FOB Shanghai)
Store:11 pcs 
Size:11.4*11.4*1.2mm
CWL:425nm
FWHM:8nm
Type: narrow bandpass filter
Specifications:
Substrate material: Float glass
Dimension(mm):11.4x11.4,Ø12.5x6(mounted),Ø25.4x6(mounted),Custom
Angle of incidence:0 degree
Center wavelength:425 nm
FWHM:8 nm
Tpeak: T>70% at 425 nm
Blocking: OD4-K What is OD?
Min. clear aperture(mm): >11x11(11.4x11.4),>Ø8.7(v12.7),>Ø21(Ø25.4)
Other: Customed,Store id: CP1-1-1
Note: Other dimension and specification are available upon request.
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Mega-9 Optical produces high performance optical filters in large volumes or single-piece quantities for all requirements of spectral light measurement and control.
2. The optical filter of claim 1, wherein one of the first and second optical elements is tunable to change the corresponding first or second reflection wavelength. 3. The optical filter of claim 2 further includes a compression device that axially compresses at least one of the first and second optical elements, wherein at least one of the respective first and second reflective elements is disposed along an axial direction of the respective first and second optical elements. 4. The optical filter of claim 2 further includes: a first compressing device for axially compressing at least the first optical element to tune the first reflective element, responsive to a displacement signal, wherein the first reflective element is disposed axially along the first optical element; and a displacement sensor, responsive to the compression of the first optical element, for providing the displacement signal indicative of the change in the displacement of the first optical element. 16. The optical filter of claim 1, wherein at least one of the first and second optical elements have an outer cladding and an inner core disposed therein, wherein the at least one of the first and second reflective element comprises a grating disposed in a longitudinal direction of the inner core. 17. The optical filter of claim 16, wherein the at least one of the first and second optical elements comprises: an optical fiber, having a reflective element written therein; and a tube, having the optical fiber and the reflective element encased therein along a longitudinal axis of the tube, the tube being fused to at least a portion of the fiber. 18. The optical filter of claim 16, wherein the at least one of the first and second optical elements is an optical waveguide having an outer transverse dimension of at least 0.3 mm. 19. The optical filter of claim 16, wherein the at least one of the first and second optical elements is an optical fiber. 20. The optical filter of claim 1 further includes a straining device for tensioning axially the first optical element to tune the first reflective element, wherein the first reflective element is disposed along an axial direction of the first optical element.
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