Optical WDM transceiver module using wavelength-selective coupler and WDM-PD for optical access networks

Kuhara, Y.; Fujimura, Y.; Nakanishi, Hiromi; Iguchi, Yasuhiro; Terauchi, H.; Yamabayashi, N.; Ishiguro, Y.; Kanamori, Hiroo

doi:10.1109/leos.1996.565128

Cited by 1 publication

(3 citation statements)

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“…Fiber couplers have found widespread applications in optical communications [1], optical networks [2], and optical logic [3]. The advent of wavelength division multiplexing (WDM) technology [4] requires the coupler to operate at multiple wavelengths.…”

Section: Introductionmentioning

confidence: 99%

“…Many kinds of WDM couplers have been used, including the 2 ϫ 2 directional coupler, the star coupler, and the MachZehnder coupler [2,4,8].…”

Section: Introductionmentioning

confidence: 99%

“…By interrogating the Bragg wavelength shift in FBG, an FBG sensor system can measure the temperature variation. To detect such a wavelength shift in FBG, many FBG sensor configurations have been proposed [1][2][3]. The light source for the simplest FBG sensor configuration is a broadband source, such as an erbium-doped fiber (EDF) pumped by a 980-nm laser diode.…”

Section: Introductionmentioning

confidence: 99%

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A linear approximation of the coupling coefficient in the WDM coupler

Chen

Joines

2003

Micro & Optical Tech Letters

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In this work, dielectric spectroscopy was used to monitor two CHO perfusion culture experiments (B14 and B16). The capacitance of the cell suspension was recorded every 20 minutes over an excitation frequency range of 0.2 MHz to 10.0 MHz. A phase plot of the capacitance at a low excitation frequency vs. the value at a higher frequency proved to be an accurate indicator of the major transition points of the culture, i.e., maximum cell viability, end of lactate consumption, point of zero viability. For both experiments, the capacitance signal correlated very well (R2 >0.98) with viable cell number up to concentrations of 1 × 107 cells/mL. Visual observation of the capacitance spectra indicated that changes in the capacitance relative to frequency were related to the cellular morphology. A multivariate model was developed using off‐line data that could predict the median cell diameter within a single experiment (B14) with an error of 0.34 μm (2%). Upon extension to a subsequent experiment (B16), the predicted error was 1.18 μm (9%). © 2003 Wiley Periodicals, Inc. Biotechnol Bioeng 84: 597–610, 2003.

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Section: Introductionmentioning

confidence: 99%

“…Many kinds of WDM couplers have been used, including the 2 ϫ 2 directional coupler, the star coupler, and the MachZehnder coupler [2,4,8].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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