Compensation for extinction ratios of optical modules
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摘要:提出了一种新型光模块消光比补偿方法。该方法首先根据不同温度下驱动芯片上报电流的大小,结合光功率和消光比的计算公式,模拟出 器光功率随电流及电压的变化曲线。然后根据要求调整 器调制电流的大小,以保持消光比的稳定。该补偿方式有效地解决了光器件一致性较差的问题,可以将原来斜效率的指标适当放宽10%,从而提高了利用率和成品率,降低了模块生产成本。Abstract:A new way of extinction ratio compensation for optical modules is proposed. According to the driver current with different temperatures, combined with the calculating methods for the optical power and extinction ratio, the curves of the laser power with current and voltage changings are simulated. And then the modulation current on principle is adjusted to keep the stability of extinction ratio. The compensation way solves the problem of bad laser efficiency uniformity and extends the value of slope efficiency about ten percent. The proposed method improves utilization and yield products, and reduces product costs.
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Key words:
- optical module/
- extinction ratio/
- K factor/
- slope efficiency/
- compensation/
- modulation current
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[1] 刘明,吴椿烽,张慧,等. RoF技术在光通信领域中的研究与应用[J]. 光通信技术 ,2009,33(6):43-46, LIU M,WU CH F,ZHANG H,et al.. Study and application of RoF technology in the optical communication[J].Opt. Communication Technol.,2009,33(6):43-46.(in Chinese) [2] KASZUBOWSKA A,HU L,BARRY L P. Remote down conversion with wavelength reuse for the radio/fiber uplink connection[J].IEEE Photonic Technol. Lett.,2006,18(4):562-564. [3] 周城,张仲,赵朋,等. LD泵浦Nd∶GdVO4/Cr∶YAG固体 器[J]. 光子学报 ,2006,35(6):801-803. ZHOU CH,ZHANG ZH,ZHAO P,et al.. LD pumped Nd∶GdVO4/Cr∶YAG solid state laser[J].Acta Photonica Sinica,2006,35(5):801-803.(in Chinese) [4] 李广,黄旭光. 利用电光FM调制抑制零级中心频带—实现超高频光波通信[J]. 光子学报 ,2008,37(10):1966-1969. LI G,HUANG X G. Achieving ultra high frequency RoF communication based on restraining zero rank central band with EO-FM modulation[J].Acta Photonica Sinica,2008,37(10):1966-1969.(in Chinese) [5] KASZUBOWSKA A,HU L,BARRY L P. Remote downconversion with wavelength reuse for the radio/fiber uplink connection[J].IEEE Photonic Technol. Lett.,2006,18(4):562-564. [6] CHEN K,WEN H,WEN S. A radio-over-fiber system with a novel scheme for milimeter-wave generation and wavelength reuse for up-link connection[J].IEEE Photonic Technol. Lett.,2006,18(9):2056-2058. [7] KOONEN A M J,NG'OMA A.Broadband Optical Access Networks and Fiber-to-the-Home:System Technologies and Development Strategies[M]. New York:Wiley,2006. [8] ZHOU M T,SHARMA A B,ZHANG J G,et al.. A novel configuration for millimeter-waveradio-over-fiber(ROF) transmission systems with remote local-oscillator delivery[J].Acta Photonica Sinica,2006,35(11):1725-1729. [9] ZHANG Y,ZHANG X L,HUANG X. Experimental investigation on slow light via four-wave mixing in semiconductor optical amplifiers[J].SPIE,2009,7279:72791T. [10] 袁福来,刘汉奎,肖顺文,等. 偏振效应损伤的光通信系统失效概率估算[J]. 光子学报 ,2009,38(2):329-333. YUAN F L,LIU H K,XIAO SH W,et al.. Evaluation of outage probability of optical communication system impaired by polarization effects[J].Acta Photonica Sinica,2009,38(2):329-333.(in Chinese) [10] PESALA BALA,CHEN ZH Y,ALEXANDER V,et al.. Experimental demonstration of slow light in semiconductor optical amplifiers[J].Opt. Express,2006,14(26):12968.
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