differential phase

differential phase

[‚dif·ə′ren·chəl ′fāz]
(electronics)
Difference in output phase of a small high-frequency sine-wave signal at two stated levels of a low-frequency signal on which it is superimposed in a video transmission system.
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The 14 papers here describe such applications as evanescent field tapered fiber optic biosensor fabrication and applications in antibody detection and immobilization, Raman amplification for communication systems, Bragg gratings in high birefringence optical fibers, applications of hollow optical fibers in atom optics, physical modeling of ring lasers, optical power budgets, all-fiber devices for optical networks, optical differential phase shift keying, polymer optical fibers, dissipative solitons in polymer systems, pulses in averaged and dispersion-managed systems, gap solitons in hollow core photonic crystal fibers, multilength optical fiber lasers and semiconductor optical amplifier ring lasers, and the impact of aging on reliability in single-mode silica optical fibers.
By placing an ultra high-speed optical switch employing this technology in the middle of an optical transmission link, even after data was transmitted across 320 kilometers with a 107Gbps optical signal modulated by differential phase shift keying(DPSK)[5] data, the transmitted data essentially reproduced without change the characteristics of the data prior to transmission, thereby verifying high-quality optical transmission through this test.
In this study, we describe differential phase contrast scanning as a means of achieving quadrature detection of proteins on a spinning disc.
4(Degree) differential phase on the Y, C and CV channels and 0.
The data sheet provides technical information on planetary epicyclic drives, differential phase shifters, position control and narrow band transmissions, machine tool spindle drives, multi-speed, variable speed, right angle and reversing drives, and servo drive reducers.
The transmission breakthrough was made possible using the differential phase shift keying (DPSK) method, a new coding scheme for high-capacity communications developed at Bell Labs.
The second generation 40 Gbps interface cards, which are based on Adaptive Differential Phase Shift Keying (ADPSK) modulation, are still available and will continue to be offered and supported for applications that do not require the enhanced DP-QPSK / coherent performance.
Sunrise Telecom([R]) Incorporated (Pink Sheets: SRTI) today announced the addition of 43G differential phase shift keying (DPSK) modulation to the STT 40G, allowing field network equipment manufacturer and communications service providers teams to install and verify long haul network equipment.
Utilizing an innovative Adaptive Differential Phase Shift Keying (ADPSK) modulation scheme and Fujitsu patented Variable Dispersion Compensation (VDC), the second generation units enable network growth up to 1.
kilometer transmission world record demonstrated in 2009, the invention of Dense Wavelength Division Multiplexing (DWDM), introduction of non-zero dispersion fiber, 100 Gigabit Ethernet field trials and advanced modulation formats at 40 Gigabits per second, including Differential Phase Shift Keying (DPSK) and Phase-Shifted Binary Transmission (PSBT), the most widely used in 40 Gigabit per second systems worldwide.
6Gbps while simultaneously incorporating an on-chip, user-enabled differential phase shift keying (DPSK) precoder function.

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