6533b7d9fe1ef96bd126d55d
RESEARCH PRODUCT
A new method to measure the wavelength of single-mode pulsed lasers with a scanning Michelson interferometer
R. Chauxsubject
PhysicsPhysics and Astronomy (miscellaneous)business.industryGeneral EngineeringSingle-mode optical fiberGeneral Physics and AstronomyMichelson interferometerLaserlaw.inventionCorner reflectorInterferometryWavelengthOpticslawReference beamSpectral widthbusinessdescription
We report on the possibility to measure the wave-lengths of pulsed single-mode lasers by means of a two-beam Michelson interferometer in motion [1,2]. The corner reflector moves with a nearly constant speed creating a path differenceL so thatL/C ≪ 1/Δν, Δν being the spectral width of the laser to be measured. The reference laser is a stabilized He-Ne (Spectra-Physics, model 117 A) to a precision of the order of two parts in 109. The fringe pattern of the two beams (reference beam and measured beam) is sampled simultaneously with a repetition rate of 40 ms. With this new method, the frequency doubled injection-seeded Nd: YAG laser wavelength has been measured with an accuracy of the order of 1.5 in 108≈3 × 10−4 cm−1 at 532nm.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-01-01 | Applied Physics B Laser and Optics |