As long as you insert the CD in the CD drive correctly (usually label-side up), playing a music CD is one of Windows 10 Media Playerâs easiest tasks. Start by pushing the driveâs Eject button, a rarely labelled button that lives next to or on the disc drive on the front of your computer.
Singlemode fiber has a much smaller core, only about 9 microns, so that the light travels in only one ray (mode.) It is used for telephony and CATV with laser sources at 1310 and 1550 nm because it has lower loss and virtually infinite bandwidth.
The projected capacity of a single fiber communication channel of 10 12 bits per second (1 Terabit/s), which the figure above suggests will happen around 2,005, is already here. Worldwide Internet traffic is about 1 Terabit per second, and could therefore, in principle, be carried on a single optical fiber.