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Finesse-Enhanced Ring Resonator Coupled Mach-Zehnder Interferometer All-Optical Switches |
| LI Chun-Fei; BANANEJ Alireza |
| Department of Physics, Harbin Institute of Technology, Harbin 150001 |
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| Cite this article: |
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LI Chun-Fei, BANANEJ Alireza 2004 Chin. Phys. Lett. 21 90-93 |
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Abstract In the all-optical switches using Mach-Zehnder interferometer side-coupled with a ring resonator, the switching power is quadratically reversely proportional to the resonator finesse in the high-finesse case. In order to enhance the resonator finesse, the loss rate a and the coupler reflectivity r should approach 1. Therefore, we propose a new configuration by inserting an amplifier into the ring to compensate for the losses in the ring and using a pumped nonlinear coupler instead of the ordinary coupler. The resonator finesse can be enhanced dramatically and the minimum switching power can be obtained.
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| Keywords:
42.65.Pc
42.81.Qb
42.81.Wg
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Published: 01 January 2004
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| PACS: |
42.65.Pc
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(Optical bistability, multistability, and switching, including local field effects)
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42.81.Qb
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(Fiber waveguides, couplers, and arrays)
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42.81.Wg
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(Other fiber-optical devices)
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