新型的波导矩阵光开关
|
摘要
为了实现波导矩阵光开关一对多、多对多的通信方式,设计了一种新型的多路可用波导矩阵光开关。在分析马赫-曾德尔干涉仪(MZI)基本结构的基础上,定义了两种开关形式。以二者作为结构单元,设计了2×2、4×4矩阵光开关结构以实现1∶k(k>1)多路连接的功能。分析了Banyan网络中交叉连接损耗与交叉角度的关系,对MZI结构进行了性能模拟和优化,并由此对整个开关的插入损耗进行了分析。最后,基于PLC技术制作出相应的MZI开关单元及2×2、4×4波导SiO2光开关实物。测试结果表明,2×2光开关的插入损耗为2.25 dB,4×4光开关的插入损耗为4.3 dB,开关时间均<1 ms,该类光开关能够很好地实现多路开关的功能。
In order to realize one-to-many and many-to-many communications for optical waveguide matrix switch,a new type of optical waveguide matrix switch was designed.Two switch units were defined on analysis of the basic structure of Mach-Zehnder Interferometer(MZI).Then,based on this two units,the new structures of 2×2 and 4×4 optical matrix switches were proposed to realize the multiport interconnection of 1∶k(k>1). The influences of the intersection angles among waveguide links on the intersection-induced optical loss of system were studied in Banyan network and the total insertion losses of system were discussed after the performance simulation and the optimization of MZI construction.Finally, SiO2-based MZI units,2×2 and 4×4 optical matrix switches were fabricated based on Planar Lightwave Circuit(PLC) technology.The experimental results indicate that the insertion losses of 2×2 optical matrix switch and 4×4 optical matrix switch are 2.25 dB and 4.3 dB,respectively,and the response time is less than 1 ms.It concludes that this type of optical switch can primely fulfill the multiport switch function.
In order to realize one-to-many and many-to-many communications for optical waveguide matrix switch,a new type of optical waveguide matrix switch was designed.Two switch units were defined on analysis of the basic structure of Mach-Zehnder Interferometer(MZI).Then,based on this two units,the new structures of 2×2 and 4×4 optical matrix switches were proposed to realize the multiport interconnection of 1∶k(k>1). The influences of the intersection angles among waveguide links on the intersection-induced optical loss of system were studied in Banyan network and the total insertion losses of system were discussed after the performance simulation and the optimization of MZI construction.Finally, SiO2-based MZI units,2×2 and 4×4 optical matrix switches were fabricated based on Planar Lightwave Circuit(PLC) technology.The experimental results indicate that the insertion losses of 2×2 optical matrix switch and 4×4 optical matrix switch are 2.25 dB and 4.3 dB,respectively,and the response time is less than 1 ms.It concludes that this type of optical switch can primely fulfill the multiport switch function.
引文
[1]孙德贵,刘志福,Ho Seng Tiong,等.自聚焦超晶格波导电光调制器[J].光学精密工程,2004,12(4):386-392.SUN D G,LIU ZH F,HO S T,et al..Electro-optic modulator with self-assembled superlattice waveguides[J].Opt.Precision Eng.,2004,12(4):386-392.(in Chinese)
[2]SYMS R R A,MOORE D F.Optical MEMS for telecoms[J].Materials Today,2002,5(7-8):26-35.
[3]MIYA T.Silica-based planar lightwave circuits:passive and thermal active devices[J].IEEE,2000,6(1):38-45.
[4]KASAHARA R,YANAGISAWA M,GOH T,et al..New structure of silica-based planar lightwave circuits forlow-power thermooptic switch and its application to 8×8 optical matrix switch[J].Lightwave Technol.,2002,20:993-1000.
[5]EARNSHAW M P,SOOLE J B D,CAPPUZZO M,et al..8×8 optical switch matrix using generalized Mach-Ze-hnder interferometers[J].IEEE,2003,15(6):810-812.
[6]LAI Q,HUNZIKER W,MELCHIOR H.Low-power compact 2×2 thermooptic silica-on-silicon waveguide switchwith fast response[J].IEEE,1998,10(5):681-683.
[7]EARNSHAW M P,SOOLE J B D,CAPPUZZO M,et al..Compact low-loss 4×4 optical switch matrix using mul-timode interferometers[J].Electron.Lett.,2001,37(2):115-116.
[8]SYAHRIAR A,SYMS R R A.Thermooptic interferometric switches fabricated by electron beamirradiation of sili-ca-on-silicon[J].J.Lightwave Technol.,1998,16(5):841-846.
[9]行松健一.光开关与光互连[M].北京:科学出版社,2002.XING S J Y.Optical Switch and Optical Internet[M].Beijing:Science Press,2002.(in Chinese)
[10]SUN D G,DENG W Y,E S L,et al..Study for performance of the thermo-optic matrix switches with flexibleswitching units and Banyan networks[J].Optical Engineering,2006,45(1):014602.
[11]CHANG F H,GUO J Y,HWANG F K.Wide-sense nonblocking for multi-logd N networks under various routingstrategies[J].Theoretical Computer Science,2006,352:232-239.
[12]张燕君,陈才和,吴波,等.硅微光机械加速度地震检波器中M-Z光波导干涉仪结构设计[J].光学精密工程,2006,14(1):77-82.ZHANG Y J,CHEN C H,WU B,et al..Structure design of Mach-Zehnder interferometer in electrooptic inte-grated acceleration seismic geophone[J].Opt.Precision Eng.,2006,14(1):77-82.(in Chinese)
[13]KAWACHI M.Silica waveguides on silicon and their application to integrated-optic components[J].Opt Quant E-lect,1990,22:391-416.
[2]SYMS R R A,MOORE D F.Optical MEMS for telecoms[J].Materials Today,2002,5(7-8):26-35.
[3]MIYA T.Silica-based planar lightwave circuits:passive and thermal active devices[J].IEEE,2000,6(1):38-45.
[4]KASAHARA R,YANAGISAWA M,GOH T,et al..New structure of silica-based planar lightwave circuits forlow-power thermooptic switch and its application to 8×8 optical matrix switch[J].Lightwave Technol.,2002,20:993-1000.
[5]EARNSHAW M P,SOOLE J B D,CAPPUZZO M,et al..8×8 optical switch matrix using generalized Mach-Ze-hnder interferometers[J].IEEE,2003,15(6):810-812.
[6]LAI Q,HUNZIKER W,MELCHIOR H.Low-power compact 2×2 thermooptic silica-on-silicon waveguide switchwith fast response[J].IEEE,1998,10(5):681-683.
[7]EARNSHAW M P,SOOLE J B D,CAPPUZZO M,et al..Compact low-loss 4×4 optical switch matrix using mul-timode interferometers[J].Electron.Lett.,2001,37(2):115-116.
[8]SYAHRIAR A,SYMS R R A.Thermooptic interferometric switches fabricated by electron beamirradiation of sili-ca-on-silicon[J].J.Lightwave Technol.,1998,16(5):841-846.
[9]行松健一.光开关与光互连[M].北京:科学出版社,2002.XING S J Y.Optical Switch and Optical Internet[M].Beijing:Science Press,2002.(in Chinese)
[10]SUN D G,DENG W Y,E S L,et al..Study for performance of the thermo-optic matrix switches with flexibleswitching units and Banyan networks[J].Optical Engineering,2006,45(1):014602.
[11]CHANG F H,GUO J Y,HWANG F K.Wide-sense nonblocking for multi-logd N networks under various routingstrategies[J].Theoretical Computer Science,2006,352:232-239.
[12]张燕君,陈才和,吴波,等.硅微光机械加速度地震检波器中M-Z光波导干涉仪结构设计[J].光学精密工程,2006,14(1):77-82.ZHANG Y J,CHEN C H,WU B,et al..Structure design of Mach-Zehnder interferometer in electrooptic inte-grated acceleration seismic geophone[J].Opt.Precision Eng.,2006,14(1):77-82.(in Chinese)
[13]KAWACHI M.Silica waveguides on silicon and their application to integrated-optic components[J].Opt Quant E-lect,1990,22:391-416.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心