PriTel, Inc.
513 Weston Ridge Dr., P.O. Box 4025
Naperville, IL 60567-4025, USA
Ph: 630-983-2200, Fx: 630-983-2260
Email:
PriTel@PriTel.com

Now in our 13th consecutive year of business worldwide.
We manufacture a range of customized fiber lasers, optical fiber
amplifiers, and multiplexers for a variety of applications at
1550 nm, 1060 nm, and 775 nm.

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Typical Performance of PriTelís 1550-nm Ultrafast Optical Clock at 10 GHz               Return to previous page
 

Optical spectra:

In the following optical spectra for short- and long-pulsewidth UOCs, note that the modes are well
separated, with the baseline limited by the resolution of the analyzer (follow
Click to Zoom links in the
graphs). 
The mode spacing is the repetition rate of the laser (in these cases, 9.95328 GHz, or 0.0796 nm).
 

Optical spectrum (linear scale) at 10 GHz, pulsewidth = 1.6 ps:
                      (spectral width =  1.7 nm)

Same optical spectrum (but with dB scale) at 10 GHz, pulsewidth = 1.6 ps:
                      (spectral width =  1.7 nm)

Optical spectrum (linear scale) at 10 GHz, pulsewidth = 9.0 ps:
                      (spectral width = 0.4 nm)

Same optical spectrum (but with dB scale) at 10 GHz, pulsewidth = 9.0 ps:
                      (spectral width = 0.4 nm)


RF spectra:


In an actively mode-locked fiber laser, such as the UOC, an important measure of the laser's performance is
the degree of suppression of the adjacent harmonics or side modes.  In the RF spectrum shown below, the
center frequency of the UOC is the repetition rate of 9.95328 GHz.  The fundamental frequency of the UOC
fiber-laser cavity is 3.31 MHz; these side modes are suppressed by at least 70 dB in the RF spectrum.
 

RF spectrum of 10 GHz pulse train near center frequency:

Sampling scope trace:


Autocorrelation at 10 GHz, pulsewidth = 1.6 ps:

Autocorrelation at 10 GHz, pulsewidth = 9.0 ps:

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PriTel, Inc.
513 Weston Ridge Dr., P.O. Box 4025
Naperville, IL 60567-4025, USA
Ph: 630-983-2200, Fx: 630-983-2260
Email:
PriTel@PriTel.com