Compact Latching Type Single-Mode Fiber Switches and Their Applications in Subscriber Loop Networks (Special Issue On Devices, Packaging Technology, and Subsystems for the Optical Access Network)
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This paper describes the design, characteristics, and applications of newly developed latching-type 1×2 and 1×8 single-mode fiber switches. These switches have been successfully fabricated using micromachine technology. To reduce insertion loss and light reflection, an index-matching oil is injected into the switches. The fabricated 1×2 switches exhibit a low insertion loss of 0.31dB, high return loss of 51dB, relatively fast switching speed of lt2ms, and low driving power of 9mw. Switching operation is stable over 10^8 switching times. A practical 1×8 single-mode fiber switch was also constructed using seven 1×2 switches cascaded in three stages. The fabricated 1×2 and 1×8 switches have been applied to an NTT multi-channel video distribution FTTH system to enhance system reliability.
- 社団法人電子情報通信学会の論文
- 1997-01-25
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- Compact Latching Type Single-Mode Fiber Switches and Their Applications in Subscriber Loop Networks (Special Issue On Devices, Packaging Technology, and Subsystems for the Optical Access Network)