| Presentation | 2007-01-26 Optical Signal Processing Using Mode-locked Semiconductor Laser Diode Y. Hashimoto, R. Kuribayashi, S. Nakamura, I. Ogura, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We describe ultrafast optical signal processing schemes utilizing mode-locked semiconductor laser diode (MLLD) for OTDM transmission over 100 Gbit/s. Polarization-insensitive all-optical clock recovery scheme of optical phase-lock loop (PLL) operating at 160 Gbit/s is presented. For the optical PLL described here the MLLD is operated as a voltage controlled oscillator, to which the error signal is fed back by forming a closed loop with a semiconductor optical amplifier (SOA) as a phase comparator and a low-frequency component as a loop filter. Cross-gain modulation in the SOA allows for high frequency PLL operation at 160Gbit/s. Also the bulk active layer with small polarization dependency is the origin of polarization insensitive clock-extraction operation. To demonstrate operation capabilities in real systems, we have examined all-optical clock extraction on the OTDM transmission test bed of 254km field-Installed fibers (Dojima-Keihanna, 63.5km, and 4 spans) at 160 Gbit/s. The measured root-mean-square (RMS) timing jitters of the recovered clock signal is as low as 240 fs which showed the feasibility of the clock extraction scheme for practical use in OTDM systems over 100 Gbit/s. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Ultra-short light pulses / Mode-locked semiconductor laser diode / Mode locking / Clock extraction / Clock recovery / nonlinear optical effects / Injection locking / Optical phase-locked loop (PLL) / All-optical signal processing / OTDM transmission / Optical regeneration |
| Paper # | OCS2006-84 |
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| Conference Information | |
| Committee | OCS |
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| Conference Date | 2007/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Communication Systems (OCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optical Signal Processing Using Mode-locked Semiconductor Laser Diode |
| Sub Title (in English) | |
| Keyword(1) | Ultra-short light pulses |
| Keyword(2) | Mode-locked semiconductor laser diode |
| Keyword(3) | Mode locking |
| Keyword(4) | Clock extraction |
| Keyword(5) | Clock recovery |
| Keyword(6) | nonlinear optical effects |
| Keyword(7) | Injection locking |
| Keyword(8) | Optical phase-locked loop (PLL) |
| Keyword(9) | All-optical signal processing |
| Keyword(10) | OTDM transmission |
| Keyword(11) | Optical regeneration |
| 1st Author's Name | Y. Hashimoto |
| 1st Author's Affiliation | System Platforms Res. Lab.() |
| 2nd Author's Name | R. Kuribayashi |
| 2nd Author's Affiliation | System Platforms Res. Lab. |
| 3rd Author's Name | S. Nakamura |
| 3rd Author's Affiliation | Fundamental and bEnvironmental Res. Lab., NEC Corporation |
| 4th Author's Name | I. Ogura |
| 4th Author's Affiliation | System Platforms Res. Lab. |
| Date | 2007-01-26 |
| Paper # | OCS2006-84 |
| Volume (vol) | vol.106 |
| Number (no) | 493 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |