Re: questions about light

"laura" <laura.brandusan@xxxxxxxxx> writes:

Dear all,

I do have some simple questions about light and its properties:

1. How a light ray can be divided into 2 or more sub-rays which have
the same wave length? What devices are available for this?

Search for "beamsplitter".

2. How can I change the wave-length of a given light ray? What is the
greatest precision achieved for this operation?

Usually with great difficulty. :)

3. How do I measure the wave length of a light ray?

Search for: diffraction grating, spectrometer, monochromator, wavelength
meter, optical filter, etc.

4. How many rays having different wave-length can travel (in the same
time) through an optical fiber cable?

An extremely large number. :) If they are just constant intensity rays,
then it's essentially infinite. If they carry information, it's limited
by their bandwidth.

Search for: WDM, optical fiber bandwidth.

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Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
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