Tunability of microwave source based on laser diode using heterodyne technique

The generation of microwave source using laser heterodyne detection technique has been done by combining two types of Distributed Feedback (DFB) laser with a fiber optic guidance into a high speed photodetector. The first laser diode is considered as the main source that emits light at a fixed frequ...

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Bibliographic Details
Main Authors: Sugiarto, Iyon Titok, Yudasari, Nurfina, Widiyatmoko, Bambang
Format: Conference Proceeding
Language:English
Subjects:
Diodes
Fiber lasers
Fiber optics
Lasers
Microwave communications
Optical communication
Optical fibers
Optical frequency
Photometers
Semiconductor lasers
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Summary:The generation of microwave source using laser heterodyne detection technique has been done by combining two types of Distributed Feedback (DFB) laser with a fiber optic guidance into a high speed photodetector. The first laser diode is considered as the main source that emits light at a fixed frequency, and the second laser diode as a local oscillator which emits the second frequency which can be tuned into higher and lower frequency. The light from the two frequencies are combined in photodetector to obtain microwave signal where the resulted frequency is the difference between the two optical frequency signals. This microwave signal can be seen in the RF Spectrum Analyzer. Experiment result shows that the detectable microwave signal has the maximum frequency 8.466 GHz.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4953940