Semiconductor laser optical modulation and demodulation modePURPOSE: To facilitate stable modulation/demodulation of a frequency by a method wherein the oscillation output laser beam of a semiconductor laser device is subjected to frequency modulation.OOBA RYOJI大場 良次...
Fiber optic gyroscope asynchronous demodulation A clock system for a fiber optic gyroscope is provided that includes a highly-tunable clock for the bias modulation and a separate asynchronous high-speed clock for the photodetector sampling. By separating the two clocks rather than usi... Thomas C....
An optical modulation/demodulation system comprising a transmitting side circuit which is capable of detecting the leading or the falling edge of a timing pulse, converting the leading and falling detection pulse signal into the pulse of either positive or negative polarity in response to the level ...
The performance of MB-OFDM UWB over fiber transmission system is investigated considering optical modulation and demodulation impact. Theoretical analysis of the effect of fiber dispersion, optical transmitter, and optical receiver response on system performance is carried out considering amplitude and phase...
and bandwidth overhead for burst alignment of different ONT frames (the lower the latency/jitter, the higher the bandwidth overhead). Therefore, the new architecture requires new optical systems, components, and algorithms, as well as modulation and demodulation mechanisms, to achieve collaborated ...
Application of optical modulation and demodulation technology in weed spectral identification On basis of the traditional spectral sensor,the system could eliminate the interference of the environmental stray light in detected results by using optical modulation and demodulation technology. This system included...
CHARACTERISTICS OF A TRANSISTOR WITH OPTICAL COUPLING (DEVICE WITH OPTICAL-CARRIER MODULATION AND DEMODULATION), 来自 Semantic Scholar 喜欢 0 阅读量: 7 作者:EA Georgievskaya,AN Mansurov,VS Etkin 摘要: The characteristics of an optically coupled transistor, a device that uses a semiconductor light ...
MODULATORS | Modulation and Demodulation of Optical Signals R.A. Minasian, in Encyclopedia of Modern Optics, 2005 Optical Receivers–Preamplification and Clock Recovery The front end of an optical receiver comprises the photodiode and a preamplifier to amplify the electrical signal for further process...
vibration on the wrapping fiber with the electrically-driven PZT. The produced strain changes the fiber refractive index and hence the optical phase of light passing through. Then, the phase change and corresponding strain can be obtained from the RBS signal by using the common I-Q demodulation ...
The externally imposed modulation waveform enables selective donor fluorescence extraction through demodulation. By incorporating an acceptor with significant, spectrally shifted, dark-state population, necessary excitation intensities are quite low and agree well with simulated enhancements. Enhancement versus ...