Integrated EA modulators for ultra-high-capacity communications

Tadashi Saitoh, Hiroshi Yasaka

Research output: Contribution to journalConference articlepeer-review


This paper describes a multi-channel modulator consisting of EAMs, an arrayed waveguide grating, and semiconductor optical amplifiers. The modulator achieves 2.5-Gb/s operation and low optical and electrical crosstalk. For a solitary high-speed 50-μm-long EAM buried with ruthenium-doped semi-insulating-InP, the extrapolated 3-dB-down electrical bandwidth is as large as 80 GHz. Small-signal E/O response with 3-dB-down electrical bandwidth of over 50 GHz is demonstrated.

Original languageEnglish
Pages (from-to)820-821
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Publication statusPublished - 2003
Event2003 IEEE LEOS Annual Meeting Conference Proceedings - TUCSON, AZ, United States
Duration: 2003 Oct 262003 Oct 30


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