Integrated small-sized semiconductor ring laser with novel retro-reflector cavity

Wang, Z. R., Verschaffelt, G., Shu, Y., Mezosi, G., Sorel, M. , Danckaert, J. and Yu, S. Y. (2008) Integrated small-sized semiconductor ring laser with novel retro-reflector cavity. IEEE Photonics Technology Letters, 20(1-4), pp. 99-101. (doi: 10.1109/LPT.2007.912554)

Abstract

We have successfully designed and fabricated 1.55-mu m semiconductor ring lasers with novel parabolic mirror retro-reflector cavities. The parabolic mirror is designed by means of ray-tracing and finite-difference time-domain to optimize its shape and position. The fabricated devices, with a range of sizes down to an equivalent circular ring radius of 16 mu m, operate in continuous-wave mode at room temperature. Threshold current of 22 mA and output power up to 140 mu W have been achieved for the smallest device. These devices are suitable for high-speed all-optical signal processing and digital photonic functions

• Item Type: Articles
• Keywords: CAVITY continuous-wave DEVICE DEVICES integrated optoelectronics optical planar waveguide OPTICS POWER ROOM-TEMPERATURE semiconductor lasers semiconductor ring laser semiconductor ring laser (SRL)
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Mezosi, Mr Gabor and Sorel, Professor Marc
• Authors: Wang, Z. R., Verschaffelt, G., Shu, Y., Mezosi, G., Sorel, M., Danckaert, J., and Yu, S. Y.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: IEEE Photonics Technology Letters
• Publisher: IEEE
• ISSN: 1041-1135