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Wavelength Tunable Laser with Silica-Waveguide Ring Resonators
Takeshi TAKEUCHI Morio TAKAHASHI Kouichi SUZUKI Shinya WATANABE Hiroyuki YAMAZAKI
IEICE TRANSACTIONS on Electronics
Publication Date: 2009/02/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Section on Recent Advances in Integrated Photonic Devices)
tunable laser, photonic integrated circuit, silica-waveguide, ring resonator,
Full Text: FreePDF(307.1KB)
We have proposed a tunable laser with silica-waveguide ring resonators. In this tunable laser, a semiconductor optical amplifier was passively aligned and mounted onto a silica-waveguide substrate. The ring resonators can be tuned by controlling their temperatures using the thermo optic heaters formed on them, and there are no mechanically moving parts. Thus, they are sufficiently stable and reliable for practical use. Our tunable laser exhibits a high fiber-output power of more than 15 dBm and a wide tunable range of 60 nm (L-band, 50 GHz spacing, 147 channels). Moreover, a tunable laser with a much wider tunable range of 96 nm using 100-GHz-FSR ring resonators is also reported.