Cold-start wavelength-division-multiplexed optical transmission system
文献类型:专利
作者 | CHUNG, YUN-CHUR; JANG, JIN-HWAN; SHIN, SEUNG-KYUN; KIM, HOON; PARK, KEUN-JOO; LEE, KWAN-SEOP |
发表日期 | 2002-02-19 |
专利号 | US6349103 |
著作权人 | SAMSUNG ELECTRONICS CO., LTD. |
国家 | 美国 |
文献子类 | 授权发明 |
其他题名 | Cold-start wavelength-division-multiplexed optical transmission system |
英文摘要 | A cold-start wavelength-division-multiplexed (WDM) optical transmission system uses a synchronized etalon filter, DFB lasers and passive optical demultiplexers. The DFB lasers are tested under normal operating conditions and wavelength-selected for each channel. The wavelength selection is such that the laser operates within one half of the channel spacing from the standardized wavelength. For the cold-start operation, each laser is able to automatically find its operating wavelength without any prior knowledge of its operating conditions for the standardized wavelength. In addition, this system simultaneously adjusts the output power of each laser to a desired value. Also provided is a method for generating standardized frequencies for a wavelength-division-multiplexed optical transmission system, including the step of adjusting the incident angle of an etalon filter by employing two frequency-locked lasers to compensate for differences of the thickness and refractive index of the etalon filter, and the step of fixing the position of the etalon filter to permanently have the adjusted incident angle, the etalon filter having resonant frequencies respectively corresponding to standardized frequencies. |
公开日期 | 2002-02-19 |
申请日期 | 1999-12-28 |
状态 | 失效 |
源URL | [http://ir.opt.ac.cn/handle/181661/34583] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | SAMSUNG ELECTRONICS CO., LTD. |
推荐引用方式 GB/T 7714 | CHUNG, YUN-CHUR,JANG, JIN-HWAN,SHIN, SEUNG-KYUN,et al. Cold-start wavelength-division-multiplexed optical transmission system. US6349103. 2002-02-19. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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