Optical Fiber Communication Conference and Exhibit 2002
DOI: 10.1109/ofc.2002.1036787
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10 Gb/s optical differential quadrature phase shift key (DQPSK) transmission using GaAs/AlGaAs integration

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Cited by 93 publications
(39 citation statements)
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“…A form of DPSK known as Differential Quadrature Phase Shift Keying (DQPSK) has shown success at 10 Gb/s using integrated optics. [19] Recent demonstration of record transmission distances using a DPSK format show the relevance of this communication system to current research. Dispersion [2] Dispersion is the spreading of a pulse in time as it propagates within an optical fiber.…”
Section: Conclusion and Recommendationsmentioning
confidence: 95%
See 1 more Smart Citation
“…A form of DPSK known as Differential Quadrature Phase Shift Keying (DQPSK) has shown success at 10 Gb/s using integrated optics. [19] Recent demonstration of record transmission distances using a DPSK format show the relevance of this communication system to current research. Dispersion [2] Dispersion is the spreading of a pulse in time as it propagates within an optical fiber.…”
Section: Conclusion and Recommendationsmentioning
confidence: 95%
“…Thermal noise accounts for a temperature dependent noise current in the photodiode. It often has the most significant effect on system performance, with a PSD of 19 …”
Section: Photodiode Noisementioning
confidence: 99%
“…The DQPSK transmitter is most commonly implemented by precoding the data in the electrical domain and driving two MZMs within a nested transmitter configuration, as shown in Figure 4. The DQPSK receiver design, shown in Figure 5, has traditionally required two DIs, as opposed to one for DBPSK [30]. However, a single DI used in conjunction with a star coupler has recently been used to simultaneously demodulate both bit streams within the DQPSK transmission [12].…”
Section: Optical Modulation Formatsmentioning
confidence: 99%
“…As in the case of DPSK, a DQPSK transmitter is most conveniently implemented by two nested MZMs operating as phase modulators. Figure 2.7 shows the corresponding transmitter setup [GRI02b,GRI01], consisting of a continuously operating laser source, a splitter to divide the light into two paths of equal intensity, two MZMs operating as phase modulators, an optical /2  phase shifter in one of the paths, and a combiner to produce a single output signal. The symbol constellations of the upper and lower paths as well as at the modulator output are also shown, together with the symbol transitions.…”
Section: Phase-shift-keyingmentioning
confidence: 99%