Widely tunable six-section semiconductor laser based on etched slots | Zendy

Marta Nawrocka | Zendy; Qiaoyin Lu | Zendy; Weihua Guo | Zendy; Azat Abdullaev | Zendy; Frank Bello | Zendy; James O’Callaghan | Zendy; Thomas Cathcart | Zendy; John F. Donegan | Zendy

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Widely tunable six-section semiconductor laser based on etched slots

Author(s) -

Marta Nawrocka,

Qiaoyin Lu,

Weihua Guo,

Azat Abdullaev,

Frank Bello,

James O’Callaghan,

Thomas Cathcart,

John F. Donegan

Publication year - 2014

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.018949

Subject(s) - optics , materials science , laser , optoelectronics , semiconductor laser theory , vernier scale , fabrication , photonics , optical amplifier , distributed feedback laser , semiconductor , waveguide , tunable laser , medicine , physics , alternative medicine , pathology

A six section widely tunable laser based on slots etched into the waveguide is presented. This laser is re-growth free which makes it suitable for photonics integration. To improve the laser performance, the front and the back facets are anti- reflection (AR) coated and the laser is integrated with a semiconductor optical amplifier. A tuning range of 55nm covering 12 supermodes with side mode suppression ratio (SMSR) >30dB is reported for the fabricated device using the Vernier tuning effect. This laser platform requires very simple fabrication compared with more complex superstructure gratings.

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