Low-Cost Hybrid WDM Module Consisting of a Spot-Size Converter Integrated Laser Diode and a Waveguide Photodiode on a PLC Platform for Access Network Systems

• UCHIDA Naoto

  NTT Opto-electronics Laboratories, Atsugi-shi

• YAMADA Yasufumi

  NTT Opto-electronics Laboratories, Ibaraki-ken

• HIBINO Yoshinori

  NTT Opto-electronics Laboratories, Ibaraki-ken

• SUZUKI Yasuhiro

  NTT Opto-electronics Laboratories, Atsugi-shi

• ISHIHARA Noboru

  NTT System Electronics Laboratories, Atsugi-shi

抄録

This paper describes the technological issues in achieving a low-cost hybrid WDM module for access network systems. The problems which should be resolved in developing a low-cost module are clarified from the viewpoint of the module assembly in mass production. A design concept for a low-cost module suitable for mass production is indicated, which simplifies the alignment between a laser diode and a waveguide, and reduces the number of the components such as lenses and mirrors. The low-cost module is achieved by employing a flip-chip bonding method with passive alignment using a spot-size converter integrated laser diode (SS-LD) and p-i-n waveguide photodiodes (WGPDs) on a planar lightwave circuit (PLC) platform. We confirm that the SS-LD and the WGPD provide high coupling efficiency with a large tolerance for passive alignment. To achieve a high-sensitivity receiver, the module is designed to employ an asymmetric PLC Y-splitter that prefers a PD responsivity to an LD output power because of the high-coupling efficiency of the LD, and to employ a bare preamplifier mounting to reduce the parasitic capacitance into a preamplifier. We also demonstrate the dynamic performance for a 50-Mb/s burst signal, such as a high sensitivity, an instantaneous AGC response, and a small APC deviation of the transceiver.

収録刊行物

• IEICE transactions on electronics

  IEICE transactions on electronics 80 (1), 88-97, 1997-01-25

  一般社団法人電子情報通信学会

キーワード

• optical module
• hybrid integration
• planar lightwave circuit
• large spot-size laser diode
• passive alignment
• access network

詳細情報

• CRID: 1570572702364025088
• NII論文ID: 110003220614
• NII書誌ID: AA10826283
• ISSN: 09168524
• 本文言語コード: en
• データソース種別:
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