Low-frequency acoustic anomalies in lithium niobate Mach–Zehnder interferometers

Jungerman, R. L.; Flory, C. A.
October 1988
Applied Physics Letters;10/17/1988, Vol. 53 Issue 16, p1477
Academic Journal
Anomalous variation in the frequency response of z-cut and x-cut Mach–Zehnder traveling-wave optical modulators near 50 MHz has been observed. Measurements of loss in the coplanar electrode and coupling to an adjacent acoustic transducer indicate the effect is due to surface acoustic waves in the device. Application of an acoustic absorber reduces the frequency response variation.


Related Articles

  • TEST BENCH. Butterworth, Brent // Sound & Vision;May2010, Vol. 75 Issue 3, p54 

    The article focuses on the measurement of frequency response Earthquake Sound Titan Telesto speaker system including its tower speaker, PN-4421 center speaker, and PN-2421 surround speaker.

  • Amplitude measurement in acoustic emission. Cáceres, Carlos H. // Review of Scientific Instruments;Aug1985, Vol. 56 Issue 8, p1669 

    A circuit capable of measuring the amplitude of continuous emission and acoustic bursts is presented. The circuit shows linear behavior (+/-5%) over a dynamic range in excess of 65 dB, for frequencies up to 250 KHz. Possible applications are discussed.

  • Demystifying frequency response. Johnson, Jack L. // Hydraulics & Pneumatics (1996);Aug96, Vol. 49 Issue 8, p16 

    Examines the use of the frequency response method as a test procedure. Use of frequency response to graph the dynamic response of outputs of a machine or process with a sine weave as the command input; Measurement of the output response to a step input; Application of frequency response to...

  • 70+ μm deep domain inversion in X-cut LiNbO[sub 3] and its use in a high-speed bandpass integrated-optic modulator. Kishino, Tetsuya; Tavlykaev, Robert F.; Ramaswamy, Ramu V. // Applied Physics Letters;6/26/2000, Vol. 76 Issue 26 

    A deep domain inversion (DI) technique for X-cut LiNbO[sub 3] is reported. DI regions as deep as 70 μm, i.e., deep enough for virtually any guided-wave application, were obtained by electric-field poling, with even deeper DI regions possible. As an application of the DI technique, a bandpass...

  • The design and construction of a frequency response apparatus to investigate diffusion in zeolites. Turner, Michael D.; Capron, Laurent; Laurence, Robert L.; Conner, Wm. Curtis // Review of Scientific Instruments;Dec2001, Vol. 72 Issue 12, p4424 

    A frequency response device has been designed and built based on previous efforts by Y. Yasuda, L. C. V. Rees, F. Meunier, and Ph. Grenier. This design uses the best attributes of the three previous devices and is improved in five specific ways. First, the device makes use of the fast response...

  • Wideband filter uses image parameters. Kurzrok, Richard // EDN;10/26/2000, Vol. 45 Issue 22, p174 

    Features a wideband filter which uses image parameters. Low-cost wideband filter resulting from cascading a highpass and a lowpass filter; Parts list for a wideband filter; Amplitude response.

  • Generate a Swept Sine Test Signal. Rowe, Martin // Test & Measurement World;Oct2000, Vol. 20 Issue 12, p21 

    Describes a technique in generating a swept sine test signal in determining frequency response. Generating an array of numbers that represent the swept sine's amplitude at each sample point in the waveform; Basic form of the equation that generates the array; Calculating the signal's amplitude...

  • Old measurements, new techniques: DSP drives speed and accuracy; coherence saves the day. Thomsen, Carsten // EDN;10/11/2001, Vol. 46 Issue 23, p71 

    Focuses on the DSP innovative techniques for signal generators. Features of cross-spectral technique used during the measurements of frequency responses on signal generators; Purpose of coherence function in qualifying measurements; Significance of high-Q filters on the accuracy of measurements.

  • Do you test your tests? Dipert, Brian // EDN;2/21/2002, Vol. 47 Issue 4, p25 

    Focuses on the frequency response in electrical engineering. Specifications of the European Broadcasting Union on the frequency response delivered by speakers; Characteristics of a listening room modifying the behavior of a speaker; Indication of the frequency response curves in a reference speech.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics