Broadly Tunable Grating-Coupled External Cavity Laser With Quantum-Dot Active Region

A broadly tunable and high-power grating-coupled external cavity laser with a tuning range of more than 200 nm and a similar to 200-mW maximum output power was realized, by utilizing a gain device with the chirped multiple quantum-dot (QD) active layers and bent waveguide structure. The chirped QD active medium, which consists of QD layers with InGaAs strain-reducing layers different in thickness, is beneficial to the broadening of the material gain spectrum. The bent waveguide structure and facet antireflection coating are both effective for the suppression of inner-cavity lasing under large injection current.

Submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-12-27T12:32:32Z No. of bitstreams: 1 Broadly Tunable Grating-Coupled External Cavity Laser With Quantum-Dot Active Region.pdf: 243921 bytes, checksum: a9a1f246bc2c43d88cba9873e7902d5b (MD5)

Approved for entry into archive by 阎军(yanj@red.semi.ac.cn) on 2010-12-27T13:55:17Z (GMT) No. of bitstreams: 1 Broadly Tunable Grating-Coupled External Cavity Laser With Quantum-Dot Active Region.pdf: 243921 bytes, checksum: a9a1f246bc2c43d88cba9873e7902d5b (MD5)

Made available in DSpace on 2010-12-27T13:55:18Z (GMT). No. of bitstreams: 1 Broadly Tunable Grating-Coupled External Cavity Laser With Quantum-Dot Active Region.pdf: 243921 bytes, checksum: a9a1f246bc2c43d88cba9873e7902d5b (MD5) Previous issue date: 2010

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