988nm narrow bandpass filter
Item#:NBPF988/40
Price:$100
CWL:988nm
Type: narrow bandpass filter
FWHM:40nm
Specifications:
Substrate material: Float glass
Dimension: Ø12.5mmx6mm(mounted),Custom
Angle of incidence: 0
Center wavelength: 988nm(+2/-2nm)
Full width at half maximum: 40nm(+5/-5nm)
Min. transmission: >75% @ 988nm,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.
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. 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.
Mega-9 Optical supplies advanced 988nm narrow bandpass filter,high quality,fast delivery,tel:86-21-57784688. 988nm narrow bandpass filter
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