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 PriTel’s 1550-nm Ultrafast Optical Clock at 10
GHz
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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). |
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Optical spectrum (linear scale) at 10 GHz, pulsewidth = 1.6 ps: |
Same
optical spectrum (but with dB scale) at 10 GHz, pulsewidth = 1.6 ps: (spectral width = 1.7 nm) |
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Optical spectrum
(linear
scale) at
10 GHz, pulsewidth = 9.0 ps: |
Same
optical spectrum (but
with dB scale) at
10 GHz, pulsewidth = 9.0 ps: (spectral width = 0.4 nm) |
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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. |
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RF spectrum of 10 GHz pulse train near center frequency: |
Sampling scope trace: | ||
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Autocorrelation at 10 GHz, pulsewidth = 1.6 ps: |
Autocorrelation at 10 GHz, pulsewidth = 9.0 ps: | ||
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