644nm narrow bandpass filter
Item#:NBPF644/10
Price:$100
CWL:644nm
Type: narrow bandpass filter
FWHM:10nm
Specifications:
Substrate material: Float glass
Dimension: Ø12.5x6(mounted),Custom
Angle of incidence: 0
Center wavelength: 644nm(+2/-2nm)
Full width at half maximum: 10nm(+2/-2nm)
Min. transmission: >50% @ 644nm,cut-off from 200nm to 1100nm(typical),T<0.01%
Min. clear aperture: >85% of diameter
Note: Other dimension and specification are available upon request.
Knowledge & Tips
Mega-9 Optical produces high performance optical filters in large volumes or single-piece quantities for all requirements of spectral light measurement and control.
8. The optical filter of claim 1, further comprising: an optical directing device optically connected to the first and second optical elements; the optical directing device directing the light to the first reflective element, directing the first wavelength band reflected from the first reflective element to the second reflective element, and directing the second wavelength band reflected from the second reflective element to the output port of the optical directing device. 9. The optical filter of claim 8, wherein the optical directing device comprises at least one circulator. 10. The optical filter of claim 9 wherein the circulator receives the light at a first port of the circulator, directs the light to the first reflective element through a second port of the circulator, receives the first wavelength band at the second port, directs the first wavelength band to the second reflective element through a third port of the circulator, receives the second wavelength band at the third port, and directs the second wavelength band to a fourth port of the circulator. 11. The optical filter of claim 8 wherein said optical directing device comprises an optical coupler. 5. The optical filter of claim 4, wherein the displacement sensor includes a capacitance sensor coupled to the first optical element for measuring the change in the capacitance that depends on the change in the displacement of the first optical element. 6. The optical filter of claim 1, wherein both of the first and second optical elements is tunable to change each of the respective first and second wavelengths. 7. The optical filter of claim 6 further comprising: a first compressing device for compressing axially the first element to tune the first reflective element, wherein the first reflective element is written in the longitudinal direction in the first optical element; and a second compressing device for compressing axially the second optical element to tune the second reflective element, wherein the second reflective element is written in the direction in the second optical element.
Mega-9 Optical supplies advanced 644nm narrow bandpass filter,high quality,fast delivery,tel:86-21-57784688. 644nm narrow bandpass filter
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