Open AccessHigh temperature operation of athermal widely tuneable laser with simplified wavelength control for WDM-PON systems
Author(s) -
Lalitha Ponnampalam,
Cyril C. Renaud,
Martyn J. Fice,
R. Cush,
Richard Turner,
Paul Firth,
M.J. Wale,
A.J. Seeds
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.024405
Subject(s) - wavelength division multiplexing , optics , wavelength , materials science , laser , optoelectronics , temperature control , physics , thermodynamics
A simplified control system is described which uses only three point calibration to maintain the wavelength of the ITU channels of an uncooled DS-DBR laser, spaced at 50GHz, over the full C-band. Wavelength is controlled mode-hop free over a temperature range of 45° to 80°C.