Investigation of double-mode operation and fast fine tuning properties of a grating-coupled external cavity diode laser configuration

Bayrakli I.

OPTICS AND LASER TECHNOLOGY, vol.87, pp.7-10, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 87
  • Publication Date: 2017
  • Doi Number: 10.1016/j.optlastec.2016.07.008
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.7-10
  • Süleyman Demirel University Affiliated: Yes


Double-mode operation and fast piezo fine tuning properties of a gain chip on a thermoelectric cooler in an external cavity are investigated. A widely course double-mode tuning range of 120 nm for the spectral range between 1470 and 1590 nm is achieved by rotating the diffraction gratings forming a double Littrow-type configuration. A fast piezo fine tuning range over 7 cm(-1) (1.5 nm, 210 GHz) in a single-mode operation is obtained by scanning the external cavity length with scan rates up to 0.5 kHz. (C) 2016 Elsevier Ltd. All rights reserved.