Optical transmission system for acquisition and measurement of the signals from the high-speed rotating shaft

Jovanovic, L.D.

doi:10.1109/imtc.2000.848687

Cited by 1 publication

(1 citation statement)

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“…9 As the optical switch number increases, a higher order control circuit can effectively reduce the pad number. 11,12 The general strategy that we employ is to integrate all relatively small-signal electronic functions into one application-specific IC ͑ASIC͒ to minimize the total number of the components. 10 In the proposed novel 3-D design, different from the 2-D one, as shown in Fig.…”

Section: Ic Design and Principle 21 Design Of 3-d Controllermentioning

confidence: 99%

Thermally actuated optoelectronic switch array for wavelength modulation/lock within <inline-formula><math display="inline" overflow="scroll"><mrow><mn>0.01</mn><mtext>-</mtext><mi>nm</mi></mrow></math></inline-formula> fluctuation

Tseng

2009

Opt. Eng

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Thermal actuated optoelectronic ring switch provides the advantages of high accuracy, easy actuation, and reasonable switching speed. However, when scaled up, the thermal ring switch may encounter issues related to fabrication error, nonaccurate wavelength response, and large terminal numbers in the control circuit. We propose the employment of an integrated control circuit to compensate for the fabrication error and tune as well as lock the wavelength in a thermal-actuated ring-type optical switch through an amplitude modulation scheme. Additional functionalities can also be added in this circuit by externally tailoring the round-trip loss or coupling constants of the ring. The design concept can be easily scaled up for large array optical switch system without much change in the terminal numbers thanks to the three-dimensional hierarchy of high gray-scale control circuit design, which effectively reduces the terminal numbers into the cubic root of the total control unit numbers. The integrated circuit has been designed, simulated, as well as fabricated, and demonstrated a decent performance with free spectral range equal to 1.5 nm at 1534 nm and very accurate wavelength modulation to 0.3 nm within 0.01 nm fluctuation for the thermal actuated ringtype optical switch.

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Section: Ic Design and Principle 21 Design Of 3-d Controllermentioning

confidence: 99%

Thermally actuated optoelectronic switch array for wavelength modulation/lock within <inline-formula><math display="inline" overflow="scroll"><mrow><mn>0.01</mn><mtext>-</mtext><mi>nm</mi></mrow></math></inline-formula> fluctuation

Tseng

2009

Opt. Eng

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show abstract

Optical transmission system for acquisition and measurement of the signals from the high-speed rotating shaft

Cited by 1 publication

References 1 publication

Thermally actuated optoelectronic switch array for wavelength modulation/lock within <inline-formula><math display="inline" overflow="scroll"><mrow><mn>0.01</mn><mtext>-</mtext><mi>nm</mi></mrow></math></inline-formula> fluctuation

Thermally actuated optoelectronic switch array for wavelength modulation/lock within <inline-formula><math display="inline" overflow="scroll"><mrow><mn>0.01</mn><mtext>-</mtext><mi>nm</mi></mrow></math></inline-formula> fluctuation

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