25-Gb/s Multi-channel 1.3-µm Surface-emitting Laser

Conference: IPRM 2011 - 23th International Conference on Indium Phosphide and Related Materials
05/22/2011 - 05/26/2011 at Berlin, Germany

Proceedings: IPRM 2011

Pages: 4Language: englishTyp: PDF

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Adachi, K.; Shinoda, K.; Kitatani, T.; Matsuoka, Y.; Sugawara, T.; Tsuji, S. (Central Research Laboratory, Hitachi, Ltd., 1-280 Higashi-Koigakubo, Kokubunji, Tokyo 185-8601, Japan)
Adachi, K.; Shinoda, K.; Kitatani, T.; Tsuji, S. (Photonics Electronics Technology Research Association, 1-20-10 Sekiguchi, Bunkyo-ku, Tokyo 112-0014, Japan)

Recent advances in our multi-channel 1.3-µm lens-integrated surface-emitting-laser (LISEL) arrays for massive data links are described. The basic structure of a LISEL array consists of a short InGaAlAs multiple-quantum-well (MQW) distributed-feedback (DFB) active-stripe array monolithically integrated with both a 45deg total reflection mirror and an aspheric collimation lens. A four-channel LISEL array based on this structure was developed. This array exhibited clear 25-Gb/s eye openings up to 50deg C over the all four channels and a total output of 100 Gb/s. A multiple-wavelength LISEL array for wavelength-division-multi-plexing applications was also developed. To obtain multiple-wavelength emission, the DFB gratings were precisely modified by electron beam lithography. The fabricated laser array exhibited nine-wavelengths stable single-mode operations (SMSR > 40 dB) between 1260 and 1290 nm at 3.7-nm intervals, and a clear 25-Gb/s eye opening for each wavelength. These two LISELs have demonstrated their suitability for nextgeneration multi-channel data links including 100Gb Ethernet and optical interconnections.