Monolithically integrated tunable laterally coupled distributed feedback lasers with self-aligned Ti/Pt/Au ohmic contacts

Rupert Schreiner; Peter Naegele; Michael Koerbl; Albert Groening; Jean-Louis Gentner; Heinz Schweizer

doi:10.1117/12.457281

4 December 2002 Monolithically integrated tunable laterally-coupled distributed feedback lasers with self-aligned Ti/Pt/Au ohmic contacts

Rupert Schreiner, Peter Naegele, Michael Koerbl, Albert Groening, Jean-Louis Gentner, Heinz Schweizer

Author Affiliations +

Proceedings Volume 4871, Semiconductor Lasers and Optical Amplifiers for Lightwave Communication Systems; (2002) https://doi.org/10.1117/12.457281
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

We present a new method for fabrication of tunable InGaAsP-InP single mode lasers without epitaxial overgrowth. These devices show the advantage of a considerably simplified fabrication process compared to conventional tunable laser types. The lasers comprise an active Bragg reflector integrated with an uncorrugated separately pumped gain region. To overcome the extensive and expensive overgrowth step we realized a surface grating on both sides of the ridge mesa, which provides DFB operation. By adjusting the current through the Bragg reflector, the wavelength can be tuned between 1590.8 nm and 1595.2 nm. A maximum of 11 wavelength channels with an average spacing of ~0.5 nm and a constant optical output power of ~0.5 mW are addressable.

Citation Download Citation

Rupert Schreiner, Peter Naegele, Michael Koerbl, Albert Groening, Jean-Louis Gentner, and Heinz Schweizer "Monolithically integrated tunable laterally-coupled distributed feedback lasers with self-aligned Ti/Pt/Au ohmic contacts", Proc. SPIE 4871, Semiconductor Lasers and Optical Amplifiers for Lightwave Communication Systems, (4 December 2002); https://doi.org/10.1117/12.457281

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