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Development of a high-speed portable optical fiber spectrum analyzer

With the development of optical fiber communication technology, optical spectrum analyzer (OSA) suitable for field use is urgently required. The laboratory-based OSA can be available only in a laboratory environment and unsuited to field use. By eliminating unwanted functions and fine design, the portable OSA can meet the requirement for field test and provide low cost and high performance. In this paper, a kind of high speed and portable OSA suitable for plastic fiber field test is designed, whose wavelength measurement accuracy is better than 0.1nm and spectrum energy measurement sensitivity is -30dBm.