By using cascaded Wavelength Division Multiplexing and pumping in
sectionalization method, ASE and feedback were greatly suppressed. At repetition rate
of 50kHz and pulse duration of 20ns, gain of amplified signal was 17.1dB with a high
signal to noise ratio of 25dB. The whole system is a good choice for a preamplifier of
high-power pulse amplification.
KEYWORDS: Single sideband modulation, Radio over Fiber, Signal generators, Signal detection, Singular optics, Radio optics, Modulation, Eye, Second-harmonic generation, Modulators
We propose a novel RoF architecture for simultaneously realizing optical single sideband (SSB) millimeter-wave (mm-wave)
signal generation and wavelength reuse for uplink connection. In the central office, the optical SSB signal with
frequency-doubling is generated via proper dc-bias on an integrated dual-parallel Mazh-Zehnder modulator. In the base
station, both the 2nd order sidebands and partial central carrier of the generated optical SSB signal are beat to generate
mm-wave signal that has double the frequency of the RF drive signal, while the other partial central carrier is remodulate
with upstream data for uplink transmission.
We propose a novel scheme for simultaneously realizing optical
mm-wave generation and remote photonic down-conversion
by using optical phase modulator along with sidebands separation technique. In the central office, optical
double sideband (DSB) signal is generated by using an optical phase modulator. One sideband of the generated optical
DSB signal is filtered out to carry downstream data signal. In the base station, the sideband carried with downstream data
beats with part of the optical carrier, thereby generates mm-wave signal. Another sideband along with part of the optical
carrier is injected into the second phase modulator to implement photonic frequency down-conversion for uplink signal
transmission. We also theoretically show the principle of photonic frequency down-conversion based on the optical
phase modulator. By using the scheme, no additional optical local oscillator signal or RF signal is needed because the
full advantage of sidebands of the optical DSB signal has been taken.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.