Abstract

Semiconductor lasers with gain-coupled distributed optical feedback (DFB) have been revealed to be superior to traditional index-coupled DFB devices, as they exhibit excellent single mode property,^1-5) reflection insensitivity,^6,7) low-chirping short optical pulse generation capability,^8,9) and immunity to longitudinal spatial hole burning.¹⁰⁾ All these features are certainly to benefit the integrated photonics applications. One of the remaining issues is a high-speed small signal modulation capability of the device as there have been only a few reports.¹¹⁾

© 1993 Optical Society of America