A fiber-optic broadband signal distribution link based on a millimeter-wave self-heterodyne transmission/optical remote heterodyne detection technique was developed. To avoid having to use expensive optical and millimeter-wave devices to construct a frequency-stable fiber-optic millimeter-signal transmission system, a millimeter-wave self-heterodyne transmission technique was used, in which tra...

We propose and experimentally demonstrate a method for fault location in optical communication network. This method utilizes the traffic signal transmitted across the network as probe signal, and then locates the fault by correlation technique. Compared with conventional techniques, our method has a simple structure and low operation expenditure, because no additional device is used, such as li...

To assess the coherent detection of an optical signal perturbed by atmospheric turbulence, the loss in the mean signal-to-noise ratio (SNR) is usually invoked although it constitutes a limited description of the signal fluctuations. To produce statistical distributions of the SNR, we generate random optical fields. A 5/3-power law for the phase structure function is considered. The benefit of a...

The phase modulation (PM) and amplitude modulation (AM) of optical signals can be achieved using a direct-modulated (DM) optical injection-locked (OIL) semiconductor laser. We propose and theoretically analyze a simple method to extract the phase component of a PM signal produced by a DM-OIL semiconductor laser. The pure AM component of the combined PM–AM signal can be isolated by square-law de...

In this paper we build a statistical model for the LIDAR signal validation (estimation, selection, statistical validation of the Mie backscattered optical field from pollutants at medium and long range distances). The LIDAR backscattered optical signal is realized via the operative characteristic. Defining Q0 as the false alarm probability and Qd the detection probability, the operative charact...

We investigate the color-locked twin-noisy-field correlation effects in third-order nonlinear absorption and dispersion of ultrafast polarization beats. We demonstrate a phase-sensitive method for studying the twophoton nondegenerate four-wave mixing NDFWM due to atomic coherence in a multilevel system. The reference signal is another one-photon degenerate four-wave-mixing signal, which propaga...

We demonstrate the successful transmission of Data Over Cable Service Interface Specification (DOCSIS) signals in the 600 MHz and 5.5 GHz frequency bands. Both signals are generated simultaneously using an optical harmonic up-conversion of the DOCSIS signal provided by a cable modem termination system (CMTS). The optical signal is transmitted over 10 km SSMF. After photo-detection, the wireline...