Fiber Optics 45-940 Michelson Interferometer w pointer 1.0 to 3.0 mW / Class IIIa

SKU: 45-940
Price:
$98.10

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Industrial Fiber Optics Michelson Interferometer Kit is the first truly inexpensive kit that faithfully re-creates the time-honored Michelson Interferometer. The Michelson Interferometer was/is a classic device that splits a beam of monochromatic light into two parts that travel along different optical paths, then are merged to produce interference fringes.

The fringes shift or change shape noticeably whenever one of the optical components in either optical path moves, even almost imperceptibly. They also shift when the effective length of one optical path changes slightly with respect to that of the second. These shifts make it possible to measure ultra small changes of a medium's index of refraction, microscopic movements of components as well as the fundamental principle for items such as the laser ring gyroscope.

Before the advent of lasers with a visible beam, the alignment of interferometer components was very difficult to achieve under ordinary laboratory conditions. Now, using the brilliant red beam of an inexpensive Industrial Fiber Optics' laser pointer, alignment can be achieved in just a few seconds. 

This kit includes: steel optical table, adjustable lens and mirror mounts, magnetic strips, beam splitter, small mirrors, short focal-length lens, laser pointer holder, laser pointer, and instruction guide.

Sample exercises:

  • Measuring the diameter of a human hair
  • Measuring the coefficient of linear expansion of different metals
  • Detecting vibrations using the interferometer as a seismograph
  • Confirming the historic Michelson/Morely experiment that demonstrated the sped of light is not affected by the motions of planet earth through space

Assembly & User's Guide Adobe Acrobat Reader logo

Specifications
   CDRH Classification    Class IIIa  
 
   Polarization    n/s  
 
   Laser emission color    Red  
 
   Laser mode    TEM00  
   Operating    Unit    Value  
   Input Voltage    V   2 AAA  
 
   Input Current    mA   n/a  
 
   Wavelength    nm    645  
 
   Optical output power, nominal    mW    1.0 to 3.0  
 
   Power, (min/max)    mW    1.0 / 3.0  
 
   Beam Diameter    mm    1.10  
 
   Beam Divergence    mRad    1.20  
 
   Digital Bandwidth    Hz   n/a  
 
   Analog Bandwidth    Hz   n/a  
 
   Mechanical    Unit    Value  
 
   Operating Temperature    ° C    20 - 30  
 
   Housing    cm    1.2 x 14.5