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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 27, Iss. 22 — Nov. 15, 2009
  • pp: 4989–4994

Novel Optical Coupling Technique for Enhancing the Performance of Integrated 8-Input/1-Output SOA Gate-Switch Module

Goji Nakagawa, Yutaka Kai, Setsuo Yoshida, Yasuhiko Aoki, Kyosuke Sone, and Susumu Kinoshita

Journal of Lightwave Technology, Vol. 27, Issue 22, pp. 4989-4994 (2009)


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Abstract

We developed 8-input/1-output (8:1) optical gate-switch module that is compact and reliable by proposing and developing a novel lens coupling scheme suitable for an 8:1 integrated SOA device for a multigate semiconductor optical amplifier (MG-SOA) switch system. We first designed special lenses that collect the tilted SOA beams and simultaneously magnify the pitch and beam size, and we fabricated a highly reliable optical module with hermetic sealing and laser-welded joints. The module exhibits low-loss coupling ($\sim$3.1 dB), high channel crosstalk ($\sim\!\!\!\!-$50dB), high extinction ratio ($ > $81 dB), and high-speed switching ($\sim$2.5 ns), confirming that this module is applicable to MG-SOA switching systems.

© 2009 IEEE

Citation
Goji Nakagawa, Yutaka Kai, Setsuo Yoshida, Yasuhiko Aoki, Kyosuke Sone, and Susumu Kinoshita, "Novel Optical Coupling Technique for Enhancing the Performance of Integrated 8-Input/1-Output SOA Gate-Switch Module," J. Lightwave Technol. 27, 4989-4994 (2009)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-27-22-4989


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References

  1. K. Sone, Y. Aoki, G. Nakagawa, Y. Kai, S. Yoshida, Y. Takita, S. Kinoshita, H. Onaka, "Optical packet interconnect system using high-speed SOA switch for peta-scale computing system," OECC (2007) 13A1-5.
  2. H. Onaka, Y. Aoki, K. Sone, G. Nakagawa, Y. Kai, S. Yoshida, Y. Takita, K. Morito, S. Tanaka, S. Kinoshita, "WDM optical packet interconnection using multi-gate SOA switch architecture for peta-flops ultra-high-performance computing systems," ECOC 2006 Tu4.6.6.
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  6. K. Kawano, "Coupling characteristics of lens systems for laser diode modules using single-mode fiber," Appl. Opt. 25, 2600-2605 (1986).

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