30-km Error-Free Transmission of Directly Modulated DFB Laser Array Transmitter Optical Sub-Assembly for 100-Gb Application
| Autor: | Yuta Ueda, Wataru Kobayashi, Hiroyuki Ishii, Toshihide Yoshimatsu, Takeshi Fujisawa, Shigeru Kanazawa, Hiroaki Sanjoh, Tetsuichiro Ohno, Kiyoto Takahata |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Distributed feedback laser Optical fiber business.industry Photonic integrated circuit 02 engineering and technology Multiplexer Atomic and Molecular Physics and Optics Semiconductor laser theory 100 Gigabit Ethernet law.invention 020210 optoelectronics & photonics law 0202 electrical engineering electronic engineering information engineering Optoelectronics Transceiver business Adaptive optics |
| Zdroj: | Journal of Lightwave Technology. 34:3646-3652 |
| ISSN: | 1558-2213 0733-8724 |
| Popis: | We fabricated the first compact 100-gigabit Ethernet (100GbE) transmitter optical sub-assembly (TOSA) using a directly modulated DFB laser (DML) array monolithically integrated with an optical multiplexer. Specially designed InGaAlAs/InGaAlAs multiple quantum wells make it possible to obtain a large gain in the 1295–1310-nm wavelength range and to operate at a high temperature of 55 °C. The four-channel DML array chip is only $2.0 \,\text{mm} \times 2.4 \,\text{mm}$ in size, and the fabricated TOSA is only $7.2 \,\text{mm} (W) \times 14.3 \,\text{mm} (L) \times 6.5 \,\text{mm} (H)$ , which fits a CFP2 or smaller 100-GbE transceiver. For all the lanes, the 3-dB bandwidths of the TOSA exceeded 17 GHz, and it could operate at 25.8 Gb/s. With 25.8-Gb/s × four-channel simultaneous operation, error-free transmissions over a 30-km single-mode fiber were demonstrated for all the lanes. |
| Databáze: | OpenAIRE |
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