FWS-Basic [Original Ver.]

The Flexible Wavelength Selector utilizes TwinFilm™ technology to deliver the tunable wavelength filtering characteristics of a grating monochromator together with the circular aperture imaging capabilities of a bandpass filter.

 

The Flexible Wavelength Selector Basic (FWS-Basic) is a manually tunable filter that features three knurled knobs – two for adjusting the center wavelength and the transmission bandwidth and one for compensating the beam direction offset.

 

For more information about compatibility please contact us at info@spectrolightinc.com.

 

 

*Note : For the optimal performance of Wavelength Selectors, the incident light should be collimated.

*Currency : US DOLLAR only
*CHECK the SPEC SHEET for the exact specifications of the products

Product Number Product Size(mm) Spectral Range FWHM Aperture Size Transmission Availability Price(USD) Order
FWS-B-M-380 40 x 76 x 40 358 ~ 403 nm 3 ~ 16 nm 10 mm > 75 % IN STOCK $2,295
FWS-B-M-425 40 x 76 x 40 395 ~ 447 nm 3 ~ 15 nm 10 mm > 75 % IN STOCK $2,550
FWS-B-M-475 40 x 76 x 40 447 ~ 501 nm 3 ~ 15 nm 10 mm > 75 % IN STOCK $2,550
FWS-B-M-530 40 x 76 x 40 496 ~ 561 nm 3 ~ 14 nm 10 mm > 75 % IN STOCK $2,550
FWS-B-M-595 40 x 76 x 40 555 ~ 628 nm 3 ~ 14 nm 10 mm > 75 % IN STOCK $2,550
FWS-B-M-665 40 x 76 x 40 621 ~ 703 nm 3 ~ 13 nm 10 mm > 75 % IN STOCK $2,550
FWS-B-M-745 40 x 76 x 40 686 ~ 790 nm 3 ~ 12 nm 10 mm > 75 % IN STOCK $2,550
FWS-B-M-845 40 x 76 x 40 784 ~ 900 nm 4 ~ 11 nm 10 mm > 75 % IN STOCK $2,550

/ Key Product Advantages

  • Broad wavelength tuning
  • Smoothly adjustable bandwidth (FWHM 3 – 16 nm, nominal)
  • Circular uniform aperture (10 mm)
  • Compact rugged optomechanical package
  • High (106) out of band extinction

/ Optical Specifications

  • Transmission: > 75%
  • Wavelength Tuning Range: ~100 nm
  • FWHM: 2 nm ~ 16 nm
  • Extinction Coefficient: ODavg > 6 (275 nm – 925 nm)
  • Cut-on Transition Width: 2% – 3% (from blocking to transmission)
  • Cut-off Transition Width: 2% – 3% (from transmission to blocking)

/ General Specifications

  • Dimensions: 40 mm x 76 mm x 40 mm 
  • Aperture Size : 10 mm 

Broadband Wavelength and Adjustable Bandwidth

The broadband range of the wavelength and the transmission bandwidth can be adjustable by manual control.

 

 

Simple Manual Adjustment

Separate knobs enable independent manual setting of both the center wavelength and the transmission bandwidth. (Gear 1:1)

 

 

Simple Integration

Compact collinear geometry simplifies integration into microscopes,

telescopes and cameras and other common photonic instruments.

 

 

 

High Out-of-band Extinction

High (106) out of band extinction avoids unwanted spectral leakage

and associated background noise typical of liquid crystal based filtering systems.

 

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