648nm narrow bandpass filter
Item#:NBPF648/10
Price:$100
CWL:648nm
Type: narrow bandpass filter
FWHM:10nm
Specifications:
Substrate material: Float glass
Dimension: Ø12.5x6(mounted),Custom
Angle of incidence: 0
Center wavelength: 648nm(+2/-2nm)
Full width at half maximum: 10nm(+2/-2nm)
Min. transmission: >50% @ 648nm,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 supplies advanced narrow bandpass filter with high quality and fast delivery.
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. 21. The optical filter of claim 1 further includes a heating element for varying the temperature of the first optical element to tune the first reflective element to reflect the selected first wavelength band. 22. The optical filter of claim 1, wherein the at least one of the first and second optical waveguides has outer dimensions along perpendicular axial and transverse directions, a first portion of the at least one of the first and second optical waveguides having an outer dimension being at least 0.3 mm along said transverse direction, at least a portion of the first portion having a transverse cross-section which is continuous and comprises a substantially homogeneous material; and the at least one of the first and second optical waveguides being axially strain compressed so as to change the at least one of the first and second reflection wavelengths. 23. The optical filter of claim 22, wherein both of the first and second optical waveguides is tunable to change each of the respective first and second reflection wavelengths.
Mega-9 Optical supplies advanced 648nm narrow bandpass filter,high quality,fast delivery,tel:86-21-57784688. 648nm narrow bandpass filter
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