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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Patterson, D.B. Godil, A.A. Kino, G.S. Khuri-Yakub, B.T. |
| Copyright Year | 1988 |
| Description | Author affiliation: Stanford Univ., CA, USA (Patterson, D.B.; Godil, A.A.; Kino, G.S.; Khuri-Yakub, B.T.) |
| Abstract | The authors describe acousto-optic modulators for optical fibers, fabricated by the deposition of thin zinc-oxide transducers onto specially lapped glass capillary tubes. By exposing the inner surface of the capillary and contacting it to an optical fiber of the same diameter, a good Hertzian contact can be easily attained, providing efficient throughput of acoustic energy at frequencies in excess of 1 GHz. A phase modulator for a single-mode fiber has been fabricated in such a manner, achieving a maximum phase retardation of 1.0 rad/W input electrical power at 416 MHz. Its frequency, power, and polarization characteristics are discussed. Also presented are data from a frequency shifter/modal coupler for a two-mode optical fiber. This device achieved 6% power coupling from the fundamental optical mode to the second-order mode with 500 mW input power at 1.03 GHz. Single sideband modulation was observed with >19-dB suppression of the unwanted sideband. The authors also describe the design of an optical tap using the same technology. |
| Starting Page | 413 |
| Ending Page | 416 |
| File Size | 404493 |
| Page Count | 4 |
| File Format | |
| DOI | 10.1109/ULTSYM.1988.49409 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1988-10-02 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Optical modulation Optical fibers Frequency Optical fiber polarization Optical coupling Acoustic transducers Glass Contacts Throughput Phase modulation |
| Content Type | Text |
| Resource Type | Article |
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