National Physical Laboratory

Laser power meters

NPL's laser sources are power-stabilised to permit accurate calibration of optical detector responsivity, including radiometers and laser power meters.

The signal to noise ratios range from 0.2 to 0.01%. At the lowest range the power output of an ultra-stable beam is in the order of a few mW.

Standard service offerings are shown below. For any other requirements, please contact us.

Fixed laser wavelength calibration

Wavelength/nm

Maximum stabilised
output power /mW

337
350
356
407
415
468
520
532
568
633
647
676
752
799
1064

10
30
30
300
300
300
200
900
600
10
1500
500
500
200
1000

Continuously wavelength-tuneable
stabilised laser radiation

Wavelength/nm

Maximum stabilised
output power /mW

355-450
450-490
240-333
680-710
710-910
920-1050

30
10
20
300
1000
800

Accredited calibrations

Two types of accreditation cover t10he detector calibrations:

  • Wavelengths above 350 nm a200t power levels up to 1 mW are given UKAS accreditation
    `000
    8000
  • Wavelengths below 350 nm and at higher power levels are certified to NPL standards

Contact

Customer Service tel: +44 20 8943 6151
E-mail: optical_enquiries@npl.co.uk

Last Updated: 25 Mar 2010
Created: 10 Aug 2009